CY8C36_10 [CYPRESS]
Programmable System-on-Chip (PSoC?); 可编程系统级芯片( PSoC® )型号: | CY8C36_10 |
厂家: | CYPRESS |
描述: | Programmable System-on-Chip (PSoC?) |
文件: | 总112页 (文件大小:3686K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Programmable System-on-Chip (PSoC®)
General Description
With its unique array of configurable blocks, PSoC® 3 is a true system level solution providing microcontroller unit (MCU), memory,
analog, and digital peripheral functions in a single chip. The CY8C36 family offers a modern method of signal acquisition, signal
processing, and control with high accuracy, high bandwidth, and high flexibility. Analog capability spans the range from thermocouples
(near DC voltages) to ultrasonic signals. The CY8C36 family can handle dozens of data acquisition channels and analog inputs on
every general-purpose input/output (GPIO) pin. The CY8C36 family is also a high-performance configurable digital system with some
part numbers including interfaces such as USB, multi-master inter-integrated circuit (I2C), and controller area network (CAN). In
addition to communication interfaces, the CY8C36 family has an easy to configure logic array, flexible routing to all I/O pins, andcurrent
DAC a high-performance single cycle 8051 microprocessor core. You can easily create system-level designs using a rich library of
prebuilt components and boolean primitives using PSoC Creator™, a hierarchical schematic design entry tool. The CY8C36 family
provides unparalleled opportunities for analog and digital bill of materials integration while easily accommodating last minute design
changes through simple firmware updates.
Library of standard peripherals
• 8-, 16-, 24-, and 32-bit timers, counters, and PWMs
Features
Single cycle 8051 CPU core
• Serial peripheral interface (SPI), universal asynchronous
DC to 67 MHz operation
Multiply and divide instructions
Flash program memory, up to 64 KB, 100,000 write cycles,
20 years retention, and multiple security features
Up to 8-KB flash error correcting code (ECC) or configuration
storage
Up to 8 KB SRAM
Up to 2 KB electrically erasable programmable
transmitter receiver (UART), I2C
• Many others available in catalog
Library of advanced peripherals
• Cyclic redundancy check (CRC)
• Pseudo random sequence (PRS) generator
• Local interconnect network (LIN) bus 2.0
• Quadrature decoder
Analog peripherals (1.71 V ≤ VDDA ≤ 5.5 V)
1.024 V ± 0.1% internal voltage reference across –40 °C to
+85 °C (14 ppm/°C)
Configurable delta-sigma ADC with 8- to12-bit resolution
• Programmable gain stage: ×0.25 to ×16
• 12-bit mode, 192-ksps, 66-dB signal to noise and distortion
ratio (SINAD), ±1-bit INL/DNL
67-MHz, 24-bit fixed point digital filter block (DFB) to
implement finite impulse response (FIR) and infinite impulse
response (IIR) filters
read-only memory (EEPROM), 1 M cycles, and 20 years
retention
24-channel direct memory access (DMA) with multilayer
AHB[1] bus access
• Programmable chained descriptors and priorities
• High bandwidth 32-bit transfer support
Low voltage, ultra low-power
Wide operating voltage range: 0.5 V to 5.5 V
High efficiency boost regulator from 0.5-V input through
1.8-V to 5.0-V output
Up to four 8-bit, 8-Msps IDACs or 1-Msps VDACs
0.8 mA at 3 MHz, 1.2 mA at 6 MHz, 6.6 mA at 48 MHz
Four comparators with 95-ns response time
Low-power modes including:
Up to four uncommitted opamps with 25 mA drive capability
• 1-µA sleep mode with real-time clock (RTC) and
low-voltage detect (LVD) interrupt
• 200-nA hibernate mode with RAM retention
Up to four configurable multifunction analog blocks. Example
configurations are programmable gain amplifier (PGA),
transimpedance amplifier (TIA), mixer, and sample and hold
CapSense support
Programming, debug, and trace
JTAG (4-wire), serial wire debug (SWD) (2-wire), and single
wire viewer (SWV) interfaces
Eight address and one data breakpoint
Versatile I/O system
28 to 72 I/O (62 GPIOs, eight special input/outputs (SIO), two
USBIOs[2]
Any GPIO to any digital or analog peripheral routability
LCD direct drive from any GPIO, up to 46 × 16 segments[2]
CapSense® support from any GPIO[3]
4-KB instruction trace buffer
1.2-V to 5.5-V I/O interface voltages, up to four domains
Bootloader programming supportable through I2C, SPI,
Maskable, independent interrupt request (IRQ) on any pin or
UART, USB, and other interfaces
port
Precision, programmable clocking
Schmitt-trigger transistor-transistor logic (TTL) inputs
All GPIO configurable as open drain high/low,
pull-up/pull-down, High Z, or strong output
Configurable GPIO pin state at power-on reset (POR)
3- to 62-MHz internal oscillator over full temperature and
voltage range
4- to 33-MHz crystal oscillator for crystal PPM accuracy
Internal PLL clock generation up to 67 MHz
25 mA sink on SIO
32.768 kHz watch crystal oscillator
Digital peripherals
Low-power internal oscillator at 1, 33, and 100 kHz
20 to 24 programmable logic devices (PLD) based universal
Temperature and packaging
–40 °C to +85 °C degrees industrial temperature
48-pin SSOP, 48-pin QFN, 68-pin QFN, and 100-pin TQFP
package options
digital blocks (UDB)
Full CAN 2.0b 16-receive (Rx), 8-transmit (Tx) buffers[2]
Full-Speed (FS) USB 2.0 12 Mbps using internal oscillator[2]
Up to four 16-bit configurable timer, counter, and PWM blocks
Notes
1. AHB – AMBA (advanced microcontroller bus architecture) high-performance bus, an ARM data transfer bus
2. This feature on select devices only. See Ordering Information on page 100 for details.
3. GPIOs with opamp outputs are not recommended for use with CapSense.
Cypress Semiconductor Corporation
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Document Number: 001-53413 Rev. *I
Revised December 10, 2010
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Contents
1. ARCHITECTURAL OVERVIEW ......................................... 3
2. PINOUTS ............................................................................. 5
3. PIN DESCRIPTIONS ......................................................... 10
8.7 CapSense ................................................................. 53
8.8 Temp Sensor ............................................................ 53
8.9 DAC .......................................................................... 53
8.10 Up/Down Mixer ....................................................... 54
8.11 Sample and Hold .................................................... 54
4. CPU ................................................................................... 11
4.1 8051 CPU ................................................................. 11
4.2 Addressing Modes .................................................... 11
4.3 Instruction Set .......................................................... 11
4.4 DMA and PHUB ....................................................... 15
4.5 Interrupt Controller ................................................... 17
9. PROGRAMMING, DEBUG INTERFACES,
RESOURCES ................................................................... 55
9.1 JTAG Interface ......................................................... 55
9.2 Serial Wire Debug Interface ..................................... 55
9.3 Debug Features ........................................................ 55
9.4 Trace Features ......................................................... 56
9.5 Single Wire Viewer Interface .................................... 56
9.6 Programming Features ............................................. 56
9.7 Device Security ........................................................ 56
5. MEMORY .......................................................................... 18
5.1 Static RAM ............................................................... 18
5.2 Flash Program Memory ............................................ 18
5.3 Flash Security ........................................................... 18
5.4 EEPROM .................................................................. 18
5.5 External Memory Interface ....................................... 18
5.6 Memory Map ............................................................ 19
10. DEVELOPMENT SUPPORT ........................................... 57
10.1 Documentation ....................................................... 57
10.2 Online ..................................................................... 57
10.3 Tools ....................................................................... 57
6. SYSTEM INTEGRATION .................................................. 21
6.1 Clocking System ....................................................... 21
6.2 Power System .......................................................... 24
6.3 Reset ........................................................................ 27
6.4 I/O System and Routing ........................................... 28
11. ELECTRICAL SPECIFICATIONS ................................... 58
11.1 Absolute Maximum Ratings .................................... 58
11.2 Device Level Specifications .................................... 59
11.3 Power Regulators ................................................... 62
11.4 Inputs and Outputs ................................................. 64
11.5 Analog Peripherals ................................................. 68
11.6 Digital Peripherals .................................................. 82
11.7 Memory .................................................................. 85
11.8 PSoC System Resources ....................................... 91
11.9 Clocking .................................................................. 93
7. DIGITAL SUBSYSTEM ..................................................... 34
7.1 Example Peripherals ................................................ 35
7.2 Universal Digital Block .............................................. 38
7.3 UDB Array Description ............................................. 41
7.4 DSI Routing Interface Description ............................ 41
7.5 CAN .......................................................................... 43
7.6 USB .......................................................................... 44
7.7 Timers, Counters, and PWMs .................................. 45
7.8 I2C ............................................................................ 45
7.9 Digital Filter Block ..................................................... 45
12. ORDERING INFORMATION ........................................... 96
12.1 Part Numbering Conventions ................................. 98
13. PACKAGING ................................................................... 99
14. ACRONYMS .................................................................. 102
15. REFERENCE DOCUMENTS ........................................ 103
8. ANALOG SUBSYSTEM .................................................... 46
8.1 Analog Routing ......................................................... 47
8.2 Delta-sigma ADC ...................................................... 49
8.3 Comparators ............................................................. 50
8.4 Opamps .................................................................... 51
8.5 Programmable SC/CT Blocks .................................. 51
8.6 LCD Direct Drive ...................................................... 52
16. DOCUMENT CONVENTIONS ...................................... 104
16.1 Units of Measure .................................................. 104
17. REVISION HISTORY .................................................... 105
18. SALES, SOLUTIONS, AND LEGAL INFORMATION .. 108
Document Number: 001-53413 Rev. *I
Page 2 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
1. Architectural Overview
Introducing the CY8C36 family of ultra low-power, flash Programmable System-on-Chip (PSoC®) devices, part of a scalable 8-bit
PSoC 3 and 32-bit PSoC 5 platform. The CY8C36 family provides configurable blocks of analog, digital, and interconnect circuitry
around a CPU subsystem. The combination of a CPU with a flexible analog subsystem, digital subsystem, routing, and I/O enables
a high level of integration in a wide variety of consumer, industrial, and medical applications.
Figure 1-1. Simplified Block Diagram
Analog Interconnect
Digital Interconnect
DIGITAL SYSTEM
SYSTEM WIDE
RESOURCES
I2C
Master/
Slave
Universal Digital Block Array (24x UDB)
CAN
2.0
8- Bit
Timer
Quadrature Decoder
16- Bit PRS
16- Bit
PWM
4- 33 MHz
( Optiona)l
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
Xtal
Osc
D+
D-
USB
PHY
UDB
8- Bit
Timer
FS USB
2.0
UDB
UDB
UDB
I2C Slave
UDB
4x
8- Bit SPI
Logic
Timer
Counter
PWM
12- Bit SPI
UDB
UDB
UDB
UDB
UDB
IMO
Logic
32.768 KHz
( Optiona)l
UDB
UDB
UART
12- Bit PWM
RTC
Timer
SYSTEM BUS
Program&
Debug
MEMORY SYSTEM
CPU SYSTEM
WDT
and
Wake
8051or
Cortex M3 CPU
Interrupt
Controller
EEPROM
SRAM
Program
Debug &
Trace
PHUB
DMA
FLASH
EMIF
Boundary
Scan
ILO
Clocking System
ANALOG SYSTEM
ADC
Digital
Filter
Block
Power Management
System
LCD Direct
Drive
+
4 x
Opamp
POR and
LVD
3 per
Opamp
-
4 x SC/ CT Blocks
1 x
Del Sig
ADC
(TIA, PGA, Mixer etc)
Sleep
Power
+
4 x
CMP
-
Temperature
Sensor
1.8V LDO
SMP
4 x DAC
CapSense
0. 5 to5.5V
( Optiona)l
Figure 1-1 illustrates the major components of the CY8C36
family. They are:
PSoC’s digital subsystem provides half of its unique
configurability. It connects a digital signal from any peripheral to
any pin through the digital system interconnect (DSI). It also
provides functional flexibility through an array of small, fast,
low-power UDBs. PSoC Creator provides a library of prebuilt and
tested standard digital peripherals (UART, SPI, LIN, PRS, CRC,
timer, counter, PWM, AND, OR, and so on) that are mapped to
the UDB array. You can also easily create a digital circuit using
boolean primitives by means of graphical design entry. Each
UDB contains programmable array logic (PAL)/programmable
logic device (PLD) functionality, together with a small state
machine engine to support a wide variety of peripherals.
8051 CPU subsystem
Nonvolatile subsystem
Programming, debug, and test subsystem
Inputs and outputs
Clocking
Power
Digital subsystem
Analog subsystem
Document Number: 001-53413 Rev. *I
Page 3 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
In addition to the flexibility of the UDB array, PSoC also provides
See the “Analog Subsystem” section on page 46 of this
datasheet for more details.
configurable digital blocks targeted at specific functions. For the
CY8C36 family these blocks can include four 16-bit timers,
counters, and PWM blocks; I2C slave, master, and multi-master;
FS USB; and Full CAN 2.0b.
PSoC’s 8051 CPU subsystem is built around a single-cycle
pipelined 8051 8-bit processor running at up to 67 MHz. The
CPU subsystem includes a programmable nested vector
interrupt controller, DMA controller, and RAM. PSoC’s nested
vector interrupt controller provides low latency by allowing the
CPU to vector directly to the first address of the interrupt service
routine, bypassing the jump instruction required by other
architectures. The DMA controller enables peripherals to
exchange data without CPU involvement. This allows the CPU
to run slower (saving power) or use those CPU cycles to improve
the performance of firmware algorithms. The single cycle 8051
CPU runs ten times faster than a standard 8051 processor. The
processor speed itself is configurable, allowing you to tune active
power consumption for specific applications.
For more details on the peripherals see the “Example
Peripherals” section on page 35 of this datasheet. For
information on UDBs, DSI, and other digital blocks, see the
“Digital Subsystem” section on page 34 of this datasheet.
PSoC’s analog subsystem is the second half of its unique
configurability. All analog performance is based on a highly
accurate absolute voltage reference with less than 0.1-percent
error over temperature and voltage. The configurable analog
subsystem includes:
Analog muxes
Comparators
Voltage references
ADC
PSoC’s nonvolatile subsystem consists of flash, byte-writeable
EEPROM, and nonvolatile configuration options. It provides up
to 64 KB of on-chip flash. The CPU can reprogram individual
blocks of flash, enabling bootloaders. You can enable an ECC
for high reliability applications. A powerful and flexible protection
model secures the user's sensitive information, allowing
DACs
DFB
selective memory block locking for read and write protection. Up
to 2 KB of byte-writeable EEPROM is available on-chip to store
application data. Additionally, selected configuration options
such as boot speed and pin drive mode are stored in nonvolatile
memory. This allows settings to activate immediately after POR.
All GPIO pins can route analog signals into and out of the device
using the internal analog bus. This allows the device to interface
up to 62 discrete analog signals. The heart of the analog
subsystem is a fast, accurate, configurable delta-sigma ADC
with these features:
The three types of PSoC I/O are extremely flexible. All I/Os have
many drive modes that are set at POR. PSoC also provides up
to four I/O voltage domains through the VDDIO pins. Every GPIO
has analog I/O, LCD drive[4], CapSense[5], flexible interrupt
generation, slew rate control, and digital I/O capability. The SIOs
on PSoC allow VOH to be set independently of VDDIO when used
as outputs. When SIOs are in input mode they are high
impedance. This is true even when the device is not powered or
when the pin voltage goes above the supply voltage. This makes
the SIO ideally suited for use on an I2C bus where the PSoC may
not be powered when other devices on the bus are. The SIO pins
also have high current sink capability for applications such as
LED drives. The programmable input threshold feature of the
SIO can be used to make the SIO function as a general purpose
analog comparator. For devices with FS USB the USB physical
interface is also provided (USBIO). When not using USB these
pins may also be used for limited digital functionality and device
programming. All of the features of the PSoC I/Os are covered
in detail in the “I/O System and Routing” section on page 28 of
this datasheet.
Less than 100 µV offset
A gain error of 0.2 percent
INL less than ±1 LSB
DNL less than ±1 LSB
SINAD better than 66 dB
This converter addresses a wide variety of precision analog
applications, including some of the most demanding sensors.
The output of the ADC can optionally feed the programmable
DFB through the DMA without CPU intervention. You can
configure the DFB to perform IIR and FIR digital filters and
several user-defined custom functions. The DFB can implement
filters with up to 64 taps. It can perform a 48-bit
multiply-accumulate (MAC) operation in one clock cycle.
Four high-speed voltage or current DACs support 8-bit output
signals at an update rate of up to 8 Msps. They can be routed
out of any GPIO pin. You can create higher resolution voltage
PWM DAC outputs using the UDB array. This can be used to
create a PWM DAC of up to 10 bits, at up to 48 kHz. The digital
DACs in each UDB support PWM, PRS, or delta-sigma
algorithms with programmable widths.
The PSoC device incorporates flexible internal clock generators,
designed for high stability and factory trimmed for high accuracy.
The internal main oscillator (IMO) is the master clock base for
the system, and has 1-percent accuracy at 3 MHz. The IMO can
be configured to run from 3 MHz up to 62 MHz. Multiple clock
derivatives can be generated from the main clock frequency to
meet application needs. The device provides a PLL to generate
system clock frequencies up to 67 MHz from the IMO, external
crystal, or external reference clock. It also contains a separate,
very low-power internal low speed oscillator (ILO) for the sleep
and watchdog timers. A 32.768-kHz external watch crystal is
also supported for use in RTC applications. The clocks, together
with programmable clock dividers, provide the flexibility to
integrate most timing requirements.
In addition to the ADC, DACs, and DFB, the analog subsystem
provides multiple:
Uncommitted opamps
Configurable switched capacitor/continuous time (SC/CT)
blocks. These support:
Transimpedance amplifiers
Programmable gain amplifiers
Mixers
Other similar analog components
Document Number: 001-53413 Rev. *I
Page 4 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
The CY8C36 family supports a wide supply operating range from
1.71 to 5.5 V. This allows operation from regulated supplies such
as 1.8 ± 5%, 2.5 V ±10%, 3.3 V ± 10%, or 5.0 V ± 10%, or directly
from a wide range of battery types. In addition, it provides an
integrated high efficiency synchronous boost converter that can
power the device from supply voltages as low as 0.5 V. This
enables the device to be powered directly from a single battery
or solar cell. In addition, you can use the boost converter to
generate other voltages required by the device, such as a 3.3-V
supply for LCD glass drive. The boost’s output is available on the
(4-wire) or SWD (2-wire) interfaces for programming, debug, and
test. The 1-wire SWV may also be used for ‘printf’ style
debugging. By combining SWD and SWV, you can implement a
full debugging interface with just three pins. Using these
standard interfaces enables you to debug or program the PSoC
with a variety of hardware solutions from Cypress or third party
vendors. PSoC supports on-chip break points and 4-KB
instruction and data race memory for debug. Details of the
programming, test, and debugging interfaces are discussed in
the “Programming, Debug Interfaces, Resources” section on
page 55 of this datasheet.
VBOOST pin, allowing other devices in the application to be
powered from the PSoC.
2. Pinouts
PSoC supports a wide range of low-power modes. These include
a 200-nA hibernate mode with RAM retention and a 1-µA sleep
mode with RTC. In the second mode the optional 32.768-kHz
watch crystal runs continuously and maintains an accurate RTC.
The Vddio pin that supplies a particular set of pins is indicated
by the black lines drawn on the pinout diagrams in Figure 2-1
through Figure 2-4. Using the Vddio pins, a single PSoC can
support multiple interface voltage levels, eliminating the need for
off-chip level shifters. Each Vddio may sink up to 100 mA total to
its associated I/O pins and opamps. On the 68-pin and 100-pin
devices each set of Vddio associated pins may sink up to
100 mA. The 48-pin device may sink up to 100 mA total for all
Vddio0 plus Vddio2 associated I/O pins and 100 mA total for all
Vddio1 plus Vddio3 associated I/O pins.
Power to all major functional blocks, including the programmable
digital and analog peripherals, can be controlled independently
by firmware. This allows low-power background processing
when some peripherals are not in use. This, in turn, provides a
total device current of only 1.2 mA when the CPU is running at
6 MHz, or 0.8 mA running at 3 MHz.
The details of the PSoC power modes are covered in the “Power
System” section on page 24 of this datasheet. PSoC uses JTAG
Figure 2-1. 48-pin SSOP Part Pinout
(SIO) P12[2]
(SIO) P12[3]
Vdda
47 Vssa
1
2
3
4
5
6
7
8
9
48
Lines show
Vddio to I/O
supply
(OpAmp2out, GPIO) P0[0]
(OpAmp0out, GPIO) P0[1]
(OpAmp0+, GPIO) P0[2]
(OpAmp0-/Extref0, GPIO) P0[3]
Vddio0
Vcca
46
45
P15[3] (GPIO, kHz XTAL: Xi)
44 P15[2] (GPIO, kHz XTAL: Xo)
43 P12[1] (SIO, I2C1: SDA)
42 P12[0] (SIO, I2C1: SCL)
41 Vddio3
association
(OpAmp2+, GPIO) P0[4]
(OpAmp2-, GPIO) P0[5]
40 P15[1] (GPIO, MHz XTAL: Xi)
39 P15[0] (GPIO, MHz XTAL: Xo)
38 Vccd
(IDAC0, GPIO) P0[6] 10
(IDAC2, GPIO) P0[7] 11
Vccd 12
37 Vssd
SSOP
Vssd
Vddd
Vddd
13
14
15
16
17
18
19
20
21
22
23
24
36
35
34
33
32
31
30
29
28
27
26
25
[6]
[6]
P15[7] (USBIO, D-, SWDCK)
P15[6] (USBIO, D+, SWDIO)
P1[7] (GPIO)
(GPIO) P2[3]
(GPIO) P2[4]
Vddio2
P1[6] (GPIO)
(GPIO) P2[5]
(GPIO) P2[6]
(GPIO) P2[7]
Vssb
Vddio1
P1[5] (GPIO, nTRST)
P1[4] (GPIO, TDI)
P1[3] (GPIO, TDO, SWV)
P1[2] (GPIO, configurable XRES)
P1[1] (GPIO, TCK, SWDCK)
P1[0] (GPIO, TMS, SWDIO)
Ind
Vboost
Vbat
Notes
4. This feature on select devices only. See Ordering Information on page 100 for details.
5. GPIOs with opamp outputs are not recommended for use with CapSense.
Document Number: 001-53413 Rev. *I
Page 5 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 2-2. 48-pin QFN Part Pinout[7]
(GPIO) P2[6]
(GPIO) P2[7]
36
1
2
P0[3] (OpAmp0-/Extref0, GPIO)
35 P0[2] (OpAmp0+, GPIO)
34 P0[1] (OpAmp0out, GPIO)
33
32
31
Lines show
Vddio to I/O
supply
Vssb
3
4
5
6
Ind
Vboost
P0[0] (OpAmp2out, GPIO)
P12[3] (SIO)
P12[2] (SIO)
association
Vbat
QFN
( Top View)
(GPIO, TMS, SWDIO) P1[0]
(GPIO, TCK, SWDCK) P1[1]
30 Vdda
29
28
27
7
8
9
10
Vssa
Vcca
(GPIO, Configurable XRES) P1[2]
(GPIO, TDO, SWV) P1[3]
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
P12[1] (SIO, I2C1: SDA)
(GPIO, TDI) P1[4]
26
25
11
12
(GPIO, nTRST) P1[5]
Notes
6. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating.
7. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to
ground, it should be electrically floated and not connected to any other signal.
Document Number: 001-53413 Rev. *I
Page 6 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 2-3. 68-pin QFN Part Pinout[10]
(GPIO) P2[6]
(GPIO) P2[7]
(I2C0: SCL, SIO) P12[4]
P0[3] (GPIO, OpAmp0-/Extref0)
P0[2] (GPIO, OpAmp0+)
1
2
3
4
5
6
51
50
P0[1] (GPIO, OpAmp0out)
P0[0] (GPIO, OpAmp2out)
49
48
47
Lines show Vddio
to I/O supply
association
(I2C0: SDA, SIO) P12[5]
Vssb
Ind
P12[3] (SIO)
P12[2] (SIO)
Vssd
Vdda
Vssa
46
45
Vboost
Vbat
7
8
9
44
43
QFN
(Top View)
Vssd
Vcca
10
42
41
XRES
(TMS, SWDIO, GPIO) P1[0]
(TCK, SWDCK, GPIO) P1[1]
(configurable XRES, GPIO) P1[2]
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
11
12
13
40
39
P12[1] (SIO, I2C1: SDA)
(TDO, SWV, GPIO) P1[3] 14
38
37
36
35
P12[0] (SIO, 12C1: SCL)
[9]
(TDI, GPIO) P1[4]
(nTRST, GPIO) P1[5]
Vddio1
15
16
17
P3[7] (GPIO, OpAmp3out)
[9]
P3[6] (GPIO, OpAmp1out)
Vddio3
Notes
8. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating.
9. This feature on select devices only. See Ordering Information on page 100 for details.
10. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to ground,
it should be electrically floated and not connected to any other signal.
Document Number: 001-53413 Rev. *I
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Figure 2-4. 100-pin TQFP Part Pinout
(GPIO) P2[5]
(GPIO) P2[6]
(GPIO) P2[7]
Vddio0
1
2
3
4
5
6
75
74
P0[3] (GPIO, OpAmp0-/Extref0)
P0[2] (GPIO, OpAmp0+)
P0[1] (GPIO, OpAmp0out)
73
72
71
Lines show Vddio
to I/O supply
association
(I2C0: SCL, SIO) P12[4]
(I2C0: SDA, SIO) P12[5]
(GPIO) P6[4]
P0[0] (GPIO, OpAmp2out)
P4[1] (GPIO)
P4[0] (GPIO)
P12[3] (SIO)
P12[2] (SIO)
Vssd
70
69
(GPIO) P6[5]
(GPIO) P6[6]
(GPIO) P6[7]
7
8
9
68
67
66
65
10
Vssb
Ind
Vboost
Vbat
Vdda
Vssa
11
12
13
14
15
16
17
64
63
TQFP
Vcca
NC
Vssd
XRES
(GPIO) P5[0]
(GPIO) P5[1]
62
61
60
NC
NC
NC
NC
59
58
57
56
55
(GPIO) P5[2]
(GPIO) P5[3]
(TMS, SWDIO, GPIO) P1[0]
18
19
20
21
22
NC
P15[3] (GPIO, kHz XTAL: Xi)
P15[2] (GPIO, kHz XTAL: Xo)
(TCK, SWDCK, GPIO) P1[1]
(configurable XRES, GPIO) P1[2]
(TDO, SWV, GPIO) P1[3]
P12[1] (SIO, I2C1: SDA)
P12[0] (SIO, I2C1: SCL)
P3[7] (GPIO, OpAmp3out)
54
53
52
51
23
[12]
[12]
(TDI, GPIO) P1[4]
(nTRST, GPIO) P1[5]
24
25
P3[6] (GPIO, OpAmp1out)
Figure 2-5 and Figure 2-6 on page 10 show an example schematic and an example PCB layout, for the 100-pin TQFP part, for optimal
analog performance on a two-layer board.
The two pins labeled Vddd must be connected together.
The two pins labeled Vccd must be connected together, with capacitance added, as shown in Figure 2-5 and Power System on
page 24. The trace between the two Vccd pins should be as short as possible.
The two pins labeled Vssd must be connected together.
Notes
11. Pins are Do Not Use (DNU) on devices without USB. The pin must be left floating.
12. This feature on select devices only. See Ordering Information on page 100 for details.
13. The center pad on the QFN package should be connected to digital ground (Vssd) for best mechanical, thermal, and electrical performance. If not connected to ground,
it should be electrically floated and not connected to any other signal.
Document Number: 001-53413 Rev. *I
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Figure 2-5. Example Schematic for 100-pin TQFP Part With Power Connections
Vddd
Vddd
C1
1 uF
C2
0.1 uF
Vddd
Vccd
C6
0.1 uF
Vssd
Vssd
U2
Vssd
CY8C55xx
Vdda
Vddd
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
P2[5]
P2[6]
P2[7]
P12[4], SIO
P12[5], SIO
P6[4]
P6[5]
P6[6]
P6[7]
Vssb
Ind
Vboost
Vbat
Vssd
XRES
P5[0]
P5[1]
P5[2]
P5[3]
P1[0], SWIO, TMS
P1[1], SWDIO, TCK
P1[2]
P1[3], SWV, TDO
P1[4], TDI
P1[5], nTRST
Vddio0
OA0-, REF0, P0[3]
C8
0.1 uF
C17
1 uF
OA0+, P0[2]
OA0out, P0[1]
OA2out, P0[0]
P4[1]
Vssd
P4[0]
Vssa
Vdda
SIO, P12[3]
SIO, P12[2]
Vssd
Vssd
Vssd
Vdda
Vssa
Vcca
Vdda
Vssa
Vcca
NC
NC
NC
NC
NC
Vssd
Vssd
C9
1 uF
C10
0.1 uF
NC
Vssa
kHzXin, P15[3]
kHzXout, P15[2]
SIO, P12[1]
SIO, P12[0]
OA3out, P3[7]
OA1out, P3[6]
Vddd
Vddd
C11
0.1 uF
C12
0.1 uF
C13
10 uF, 6.3 V 0.1 uF Vssd
C14
C15
1 uF
Vssd
C16
0.1 uF
Vssa
Vssa
Vssd
Note The two Vccd pins must be connected together with as short a trace as possible. A trace under the device is recommended, as
shown in Figure 2-6 on page 10.
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Figure 2-6. Example PCB Layout for 100-pin TQFP Part for Optimal Analog Performance
Vssa
Vssd
Vdda
Vddd
Vssa
Plane
Vssd
Plane
SIO. Special I/O provides interfaces to the CPU, digital
peripherals and interrupts with a programmable high threshold
voltage, analog comparator, high sink current, and high
impedance state when the device is unpowered.
3. Pin Descriptions
IDAC0, IDAC1, IDAC2, IDAC3. Low resistance output pin for
high current DACs (IDAC).
OpAmp0out, OpAmp1out[15], OpAmp2out, OpAmp3out[15]
High current output of uncommitted opamp.[14]
.
SWDCK. Serial wire debug clock programming and debug port
connection.
SWDIO. Serial wire debug input and output programming and
debug port connection.
Extref0, Extref1. External reference input to the analog system.
OpAmp0–, OpAmp1–[15], OpAmp2–, OpAmp3–[15]. Inverting
SWV. Single wire viewer debug output.
input to uncommitted opamp.
TCK. JTAG test clock programming and debug port connection.
TDI. JTAG test data in programming and debug port connection.
OpAmp0+, OpAmp1+[15], OpAmp2+, OpAmp3+[15]
.
Noninverting input to uncommitted opamp.
TDO. JTAG test data out programming and debug port
connection.
GPIO. General purpose I/O pin provides interfaces to the CPU,
digital peripherals, analog peripherals, interrupts, LCD segment
drive, and CapSense.[14]
TMS. JTAG test mode select programming and debug port
connection.
I2C0: SCL, I2C1: SCL. I2C SCL line providing wake from sleep
on an address match. Any I/O pin can be used for I2C SCL if
wake from sleep is not required.
USBIO, D+. Provides D+ connection directly to a USB 2.0 bus.
May be used as a digital I/O pin. Pins are Do Not Use (DNU) on
devices without USB.
I2C0: SDA, I2C1: SDA. I2C SDA line providing wake from sleep
on an address match. Any I/O pin can be used for I2C SDA if
wake from sleep is not required.
USBIO, D–. Provides D– connection directly to a USB 2.0 bus.
May be used as a digital I/O pin. Pins are Do Not Use (DNU) on
devices without USB.
Ind. Inductor connection to boost pump.
Vboost. Power sense connection to boost pump.
Vbat. Battery supply to boost pump.
kHz XTAL: Xo, kHz XTAL: Xi. 32.768 kHz crystal oscillator pin.
MHz XTAL: Xo, MHz XTAL: Xi. 4 to 33 MHz crystal oscillator pin.
Vcca. Output of analog core regulator and input to analog core.
Requires a 1-µF capacitor to Vssa. Regulator output not for
external use.
nTRST. Optional JTAG Test Reset programming and debug port
connection to reset the JTAG connection.
Notes
14. GPIOs with opamp outputs are not recommended for use with CapSense.
15. This feature on select devices only. See Ordering Information on page 100 for details.
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Vccd. Output of digital core regulator and input to digital core.
4.2 Addressing Modes
The two Vccd pins must be shorted together, with the trace
between them as short as possible, and a 1-µF capacitor to
Vssd; see Power System on page 24. Regulator output not for
external use.
The following addressing modes are supported by the 8051:
Direct addressing: The operand is specified by a direct 8-bit
address field. Only the internal RAM and the SFRs can be
accessed using this mode.
Vdda. Supply for all analog peripherals and analog core
regulator. Vdda must be the highest voltage present on the
device. All other supply pins must be less than or equal to
Vdda.
Indirectaddressing:Theinstructionspecifiestheregisterwhich
contains the address of the operand. The registers R0 or R1
are used to specify the 8-bit address, while the data pointer
(DPTR) register is used to specify the 16-bit address.
Vddd. Supply for all digital peripherals and digital core regulator.
VDDD must be less than or equal to Vdda.
Register addressing: Certain instructions access one of the
registers (R0 to R7) in the specified register bank. These
instructions are more efficient because there is no need for an
address field.
Vssa. Ground for all analog peripherals.
Vssb. Ground connection for boost pump.
Vssd. Ground for all digital logic and I/O pins.
Register specific instructions: Some instructions are specific to
certain registers. For example, some instructions always act
on the accumulator. In this case, there is no need to specify the
operand.
Vddio0, Vddio1, Vddio2, Vddio3. Supply for I/O pins. See
pinouts for specific I/O pin to Vddio mapping. Each Vddio must
be tied to a valid operating voltage (1.71 V to 5.5 V), and must
be less than or equal to Vdda. If the I/O pins associated with
Vddio0, Vddio2 or Vddio3 are not used then that Vddio should
be tied to ground (Vssd or Vssa).
Immediate constants: Some instructions carry the value of the
constants directly instead of an address.
Indexed addressing: This type of addressing can be used only
for a read of the program memory. This mode uses the Data
Pointer as the base and the accumulator value as an offset to
read a program memory.
XRES (and configurable XRES). External reset pin. Active low
with internal pull-up. In 48-pin SSOP parts and 48-pin QFN parts,
P1[2] may be configured as XRES. In all other parts the pin is
configured as a GPIO.
Bit addressing: In this mode, the operand is one of 256 bits.
4. CPU
4.3 Instruction Set
The 8051 instruction set is highly optimized for 8-bit handling and
Boolean operations. The types of instructions supported include:
4.1 8051 CPU
The CY8C36 devices use a single cycle 8051 CPU, which is fully
compatible with the original MCS-51 instruction set. The
CY8C36 family uses a pipelined RISC architecture, which
executes most instructions in 1 to 2 cycles to provide peak
performance of up to 33 MIPS with an average of 2 cycles per
instruction. The single cycle 8051 CPU runs ten times faster than
a standard 8051 processor.
Arithmetic instructions
Logical instructions
Data transfer instructions
Boolean instructions
Program branching instructions
The 8051 CPU subsystem includes these features:
Single cycle 8051 CPU
4.3.1 Instruction Set Summary
4.3.1.1 Arithmetic Instructions
Up to 64 KB of flash memory, up to 2 KB of EEPROM, and up
to 8 KB of SRAM
Arithmetic instructions support the direct, indirect, register,
immediate constant, and register-specific instructions.
Arithmetic modes are used for addition, subtraction,
multiplication, division, increment, and decrement operations.
Table 4-1 on page 12 lists the different arithmetic instructions.
Programmable nested vector interrupt controller
DMA controller
Peripheral HUB (PHUB)
External memory interface (EMIF)
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Table 4-1. Arithmetic Instructions
Mnemonic
Description
Bytes
Cycles
ADD A,Rn
Add register to accumulator
Add direct byte to accumulator
1
2
1
2
1
2
1
2
1
2
1
2
1
1
2
1
1
1
2
1
1
1
1
1
1
2
2
2
1
2
2
2
1
2
2
2
1
2
3
3
1
2
3
3
1
2
6
3
ADD A,Direct
ADD A,@Ri
ADD A,#data
ADDC A,Rn
Add indirect RAM to accumulator
Add immediate data to accumulator
Add register to accumulator with carry
Add direct byte to accumulator with carry
Add indirect RAM to accumulator with carry
Add immediate data to accumulator with carry
Subtract register from accumulator with borrow
Subtract direct byte from accumulator with borrow
Subtract indirect RAM from accumulator with borrow
Subtract immediate data from accumulator with borrow
Increment accumulator
ADDC A,Direct
ADDC A,@Ri
ADDC A,#data
SUBB A,Rn
SUBB A,Direct
SUBB A,@Ri
SUBB A,#data
INC
A
INC Rn
Increment register
INC Direct
INC @Ri
Increment direct byte
Increment indirect RAM
DEC
A
Decrement accumulator
DEC Rn
DEC Direct
DEC @Ri
INC DPTR
MUL
Decrement register
Decrement direct byte
Decrement indirect RAM
Increment data pointer
Multiply accumulator and B
DIV
Divide accumulator by B
DAA
Decimal adjust accumulator
4.3.1.2 Logical Instructions
The logical instructions perform Boolean operations such as AND, OR, XOR on bytes, rotate of accumulator contents, and swap of
nibbles in an accumulator. The Boolean operations on the bytes are performed on the bit-by-bit basis. Table 4-2 on page 12 shows
the list of logical instructions and their description.
Table 4-2. Logical Instructions
Mnemonic
ANL A,Rn
Description
AND register to accumulator
Bytes
Cycles
1
2
1
2
2
3
1
2
1
1
2
2
2
3
3
1
2
2
ANL A,Direct
ANL A,@Ri
AND direct byte to accumulator
AND indirect RAM to accumulator
AND immediate data to accumulator
AND accumulator to direct byte
AND immediate data to direct byte
OR register to accumulator
ANL A,#data
ANL Direct, A
ANL Direct, #data
ORL A,Rn
ORL A,Direct
ORL A,@Ri
OR direct byte to accumulator
OR indirect RAM to accumulator
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Table 4-2. Logical Instructions (continued)
Mnemonic
Description
Bytes
Cycles
ORL A,#data
ORL Direct, A
ORL Direct, #data
XRL A,Rn
OR immediate data to accumulator
OR accumulator to direct byte
OR immediate data to direct byte
XOR register to accumulator
XOR direct byte to accumulator
XOR indirect RAM to accumulator
XOR immediate data to accumulator
XOR accumulator to direct byte
XOR immediate data to direct byte
Clear accumulator
2
2
3
1
2
1
2
2
3
1
1
1
1
1
1
1
2
3
3
1
2
2
2
3
3
1
1
1
1
1
1
1
XRL A,Direct
XRL A,@Ri
XRL A,#data
XRL Direct, A
XRL Direct, #data
CLR
CPL
RL
A
A
A
A
A
Complement accumulator
Rotate accumulator left
RLC
RR
Rotate accumulator left through carry
Rotate accumulator right
RRC A
SWAP A
Rotate accumulator right though carry
Swap nibbles within accumulator
4.3.1.3 Data Transfer Instructions
4.3.1.4 Boolean Instructions
The data transfer instructions are of three types: the core RAM,
xdata RAM, and the lookup tables. The core RAM transfer
includes transfer between any two core RAM locations or SFRs.
These instructions can use direct, indirect, register, and
immediate addressing. The xdata RAM transfer includes only the
transfer between the accumulator and the xdata RAM location.
It can use only indirect addressing. The lookup tables involve
nothing but the read of program memory using the Indexed
addressing mode. Table 4-3 lists the various data transfer
instructions available.
The 8051 core has a separate bit-addressable memory location.
It has 128 bits of bit addressable RAM and a set of SFRs that are
bit addressable. The instruction set includes the whole menu of
bit operations such as move, set, clear, toggle, OR, and AND
instructions and the conditional jump instructions. Table 4-4 on
page 14 lists the available Boolean instructions.
Table 4-3. Data Transfer Instructions
Mnemonic
MOV A,Rn
Description
Bytes
Cycles
Move register to accumulator
Move direct byte to accumulator
Move indirect RAM to accumulator
Move immediate data to accumulator
Move accumulator to register
Move direct byte to register
1
2
1
2
1
2
2
2
2
3
2
3
1
1
2
2
2
1
3
2
2
2
3
3
3
2
MOV A,Direct
MOV A,@Ri
MOV A,#data
MOV Rn,A
MOV Rn,Direct
MOV Rn, #data
MOV Direct, A
MOV Direct, Rn
MOV Direct, Direct
MOV Direct, @Ri
MOV Direct, #data
MOV @Ri, A
Move immediate data to register
Move accumulator to direct byte
Move register to direct byte
Move direct byte to direct byte
Move indirect RAM to direct byte
Move immediate data to direct byte
Move accumulator to indirect RAM
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Table 4-3. Data Transfer Instructions (continued)
Mnemonic
MOV @Ri, Direct
MOV @Ri, #data
MOV DPTR, #data16
MOVC A, @A+DPTR
MOVC A, @A + PC
MOVX A,@Ri
Description
Move direct byte to indirect RAM
Bytes
Cycles
2
2
3
1
1
1
1
1
1
2
2
1
2
1
1
3
2
3
5
4
4
3
5
4
3
2
2
3
3
3
Move immediate data to indirect RAM
Load data pointer with 16 bit constant
Move code byte relative to DPTR to accumulator
Move code byte relative to PC to accumulator
Move external RAM (8-bit) to accumulator
Move external RAM (16-bit) to accumulator
Move accumulator to external RAM (8-bit)
Move accumulator to external RAM (16-bit)
Push direct byte onto stack
MOVX A, @DPTR
MOVX @Ri, A
MOVX @DPTR, A
PUSH Direct
POP Direct
Pop direct byte from stack
XCH A, Rn
Exchange register with accumulator
XCH A, Direct
XCH A, @Ri
Exchange direct byte with accumulator
Exchange indirect RAM with accumulator
Exchange low order indirect digit RAM with accumulator
XCHD A, @Ri
Table 4-4. Boolean Instructions
Mnemonic
Description
Bytes
Cycles
CLR
C
Clear carry
1
2
1
2
1
2
2
2
2
2
2
2
2
2
3
3
3
1
3
1
3
1
3
2
2
2
2
2
3
3
3
5
5
5
CLR bit
SETB C
SETB bit
Clear direct bit
Set carry
Set direct bit
CPL
C
Complement carry
Complement direct bit
AND direct bit to carry
CPL bit
ANL C, bit
ANL C, /bit
ORL C, bit
ORL C, /bit
MOV C, bit
MOV bit, C
AND complement of direct bit to carry
OR direct bit to carry
OR complement of direct bit to carry
Move direct bit to carry
Move carry to direct bit
JC
rel
Jump if carry is set
JNC rel
Jump if no carry is set
JB
bit, rel
Jump if direct bit is set
JNB bit, rel
JBC bit, rel
Jump if direct bit is not set
Jump if direct bit is set and clear bit
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4.3.1.5 Program Branching Instructions
The 8051 supports a set of conditional and unconditional jump instructions that help to modify the program execution flow. Table 4-5
shows the list of jump instructions.
Table 4-5. Jump Instructions
Mnemonic
ACALL addr11
Description
Bytes
Cycles
Absolute subroutine call
Long subroutine call
Return from subroutine
Return from interrupt
Absolute jump
2
3
1
1
2
3
2
1
2
2
3
3
3
3
2
3
1
4
4
4
4
3
4
3
5
4
4
5
4
4
5
4
5
1
LCALL addr16
RET
RETI
AJMP addr11
LJMP addr16
SJMP rel
Long jump
Short jump (relative address)
JMP @A + DPTR
JZ rel
Jump indirect relative to DPTR
Jump if accumulator is zero
JNZ rel
Jump if accumulator is nonzero
CJNE A,Direct, rel
CJNE A, #data, rel
CJNE Rn, #data, rel
CJNE @Ri, #data, rel
DJNZ Rn,rel
DJNZ Direct, rel
NOP
Compare direct byte to accumulator and jump if not equal
Compare immediate data to accumulator and jump if not equal
Compare immediate data to register and jump if not equal
Compare immediate data to indirect RAM and jump if not equal
Decrement register and jump if not zero
Decrement direct byte and jump if not zero
No operation
4.4 DMA and PHUB
Table 4-6. PHUB Spokes and Peripherals
The PHUB and the DMA controller are responsible for data
transfer between the CPU and peripherals, and also data
transfers between peripherals. The PHUB and DMA also control
device configuration during boot. The PHUB consists of:
PHUB Spokes
Peripherals
0
1
2
SRAM
IOs, PICU, EMIF
PHUB local configuration, Power manager,
Clocks, IC, SWV, EEPROM, Flash
programming interface
A central hub that includes the DMA controller, arbiter, and
router
Multiple spokes that radiate outward from the hub to most
peripherals
3
4
5
6
7
Analog interface and trim, Decimator
USB, CAN, I2C, Timers, Counters, and PWMs
There are two PHUB masters: the CPU and the DMA controller.
Both masters may initiate transactions on the bus. The DMA
channels can handle peripheral communication without CPU
intervention. The arbiter in the central hub determines which
DMA channel is the highest priority if there are multiple requests.
DFB
UDBs group 1
UDBs group 2
4.4.2 DMA Features
4.4.1 PHUB Features
24 DMA channels
CPU and DMA controller are both bus masters to the PHUB
Each channel has one or more transaction descriptors (TD) to
configure channel behavior. Up to 128 total TDs can be defined
Eight Multi-layer AHB Bus parallel access paths (spokes) for
peripheral access
TDs can be dynamically updated
Eight levels of priority per channel
Simultaneous CPU and DMA access to peripherals located on
different spokes
Anydigitallyroutablesignal, theCPU, oranotherDMAchannel,
can trigger a transaction
Simultaneous DMA source and destination burst transactions
on different spokes
Each channel can generate up to two interrupts per transfer
Transactions can be stalled or canceled
Supports 8-, 16-, 24-, and 32-bit addressing and data
Supports transaction size of infinite or 1 to 64 KB
TDs may be nested and/or chained for complex transactions
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4.4.3 Priority Levels
4.4.4.3 Ping Pong DMA
The CPU always has higher priority than the DMA controller
when their accesses require the same bus resources. Due to the
system architecture, the CPU can never starve the DMA. DMA
channels of higher priority (lower priority number) may interrupt
current DMA transfers. In the case of an interrupt, the current
transfer is allowed to complete its current transaction. To ensure
latency limits when multiple DMA accesses are requested
simultaneously, a fairness algorithm guarantees an interleaved
minimum percentage of bus bandwidth for priority levels 2
through 7. Priority levels 0 and 1 do not take part in the fairness
algorithm and may use 100% of the bus bandwidth. If a tie occurs
on two DMA requests of the same priority level, a simple round
robin method is used to evenly share the allocated bandwidth.
The round robin allocation can be disabled for each DMA
channel, allowing it to always be at the head of the line. Priority
levels 2 to 7 are guaranteed the minimum bus bandwidth shown
in Table 4-7 after the CPU and DMA priority levels 0 and 1 have
satisfied their requirements.
A ping pong DMA case uses double buffering to allow one buffer
to be filled by one client while another client is consuming the
data previously received in the other buffer. In its simplest form,
this is done by chaining two TDs together so that each TD calls
the opposite TD when complete.
4.4.4.4 Circular DMA
Circular DMA is similar to ping pong DMA except it contains more
than two buffers. In this case there are multiple TDs; after the last
TD is complete it chains back to the first TD.
4.4.4.5 Scatter Gather DMA
In the case of scatter gather DMA, there are multiple
noncontiguous sources or destinations that are required to
effectively carry out an overall DMA transaction. For example, a
packet may need to be transmitted off of the device and the
packet elements, including the header, payload, and trailer, exist
in various noncontiguous locations in memory. Scatter gather
DMA allows the segments to be concatenated together by using
multiple TDs in a chain. The chain gathers the data from the
multiple locations. A similar concept applies for the reception of
data onto the device. Certain parts of the received data may need
to be scattered to various locations in memory for software
processing convenience. Each TD in the chain specifies the
location for each discrete element in the chain.
Table 4-7. Priority Levels
Priority Level
% Bus Bandwidth
0
1
2
3
4
5
6
7
100.0
100.0
50.0
25.0
12.5
6.2
4.4.4.6 Packet Queuing DMA
Packet queuing DMA is similar to scatter gather DMA but
specifically refers to packet protocols. With these protocols,
there may be separate configuration, data, and status phases
associated with sending or receiving a packet.
3.1
1.5
For instance, to transmit a packet, a memory mapped
configuration register can be written inside a peripheral,
specifying the overall length of the ensuing data phase. The CPU
can set up this configuration information anywhere in system
memory and copy it with a simple TD to the peripheral. After the
configuration phase, a data phase TD (or a series of data phase
TDs) can begin (potentially using scatter gather). When the data
phase TD(s) finish, a status phase TD can be invoked that reads
some memory mapped status information from the peripheral
and copies it to a location in system memory specified by the
CPU for later inspection. Multiple sets of configuration, data, and
status phase “subchains” can be strung together to create larger
chains that transmit multiple packets in this way. A similar
concept exists in the opposite direction to receive the packets.
When the fairness algorithm is disabled, DMA access is granted
based solely on the priority level; no bus bandwidth guarantees
are made.
4.4.4 Transaction Modes Supported
The flexible configuration of each DMA channel and the ability to
chain multiple channels allow the creation of both simple and
complex use cases. General use cases include, but are not
limited to:
4.4.4.1 Simple DMA
In a simple DMA case, a single TD transfers data between a
source and sink (peripherals or memory location).
4.4.4.7 Nested DMA
4.4.4.2 Auto Repeat DMA
One TD may modify another TD, as the TD configuration space
is memory mapped similar to any other peripheral. For example,
a first TD loads a second TD’s configuration and then calls the
second TD. The second TD moves data as required by the
application. When complete, the second TD calls the first TD,
which again updates the second TD’s configuration. This
process repeats as often as necessary.
Auto repeat DMA is typically used when a static pattern is
repetitively read from system memory and written to a peripheral.
This is done with a single TD that chains to itself.
Document Number: 001-53413 Rev. *I
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4.5 Interrupt Controller
Table 4-8. Interrupt Vector Table
The interrupt controller provides a mechanism for hardware
resources to change program execution to a new address,
independent of the current task being executed by the main
code. The interrupt controller provides enhanced features not
found on original 8051 interrupt controllers:
#
Fixed Function
LVD
DMA
UDB
0
1
2
3
4
5
6
7
8
9
phub_termout0[0] udb_intr[0]
phub_termout0[1] udb_intr[1]
phub_termout0[2] udb_intr[2]
phub_termout0[3] udb_intr[3]
phub_termout0[4] udb_intr[4]
phub_termout0[5] udb_intr[5]
phub_termout0[6] udb_intr[6]
phub_termout0[7] udb_intr[7]
phub_termout0[8] udb_intr[8]
phub_termout0[9] udb_intr[9]
phub_termout0[10] udb_intr[10]
phub_termout0[11] udb_intr[11]
phub_termout0[12] udb_intr[12]
phub_termout0[13] udb_intr[13]
ECC
Reserved
Sleep (Pwr Mgr)
PICU[0]
PICU[1]
PICU[2]
PICU[3]
PICU[4]
PICU[5]
PICU[6]
PICU[12]
PICU[15]
Thirty-two interrupt vectors
Jumps directly to ISR anywhere in code space with dynamic
vector addresses
Multiple sources for each vector
Flexible interrupt to vector matching
Each interrupt vector is independently enabled or disabled
Each interrupt can be dynamically assigned one of eight
priorities
10
11
12
13
Eight level nestable interrupts
Multiple I/O interrupt vectors
Software can send interrupts
Software can clear pending interrupts
Comparators
Combined
14
Switched Caps
Combined
I2C
phub_termout0[14] udb_intr[14]
When an interrupt is pending, the current instruction is
completed and the program counter is pushed onto the stack.
Code execution then jumps to the program address provided by
the vector. After the ISR is completed, a RETI instruction is
executed and returns execution to the instruction following the
previously interrupted instruction. To do this the RETI instruction
pops the program counter from the stack.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
phub_termout0[15] udb_intr[15]
phub_termout1[0] udb_intr[16]
phub_termout1[1] udb_intr[17]
phub_termout1[2] udb_intr[18]
phub_termout1[3] udb_intr[19]
phub_termout1[4] udb_intr[20]
phub_termout1[5] udb_intr[21]
phub_termout1[6] udb_intr[22]
phub_termout1[7] udb_intr[23]
phub_termout1[8] udb_intr[24]
CAN
Timer/Counter0
Timer/Counter1
Timer/Counter2
Timer/Counter3
USB SOF Int
USB Arb Int
USB Bus Int
USB Endpoint[0]
If the same priority level is assigned to two or more interrupts,
the interrupt with the lower vector number is executed first. Each
interrupt vector may choose from three interrupt sources: Fixed
Function, DMA, and UDB. The fixed function interrupts are direct
connections to the most common interrupt sources and provide
the lowest resource cost connection. The DMA interrupt sources
provide direct connections to the two DMA interrupt sources
provided per DMA channel. The third interrupt source for vectors
is from the UDB digital routing array. This allows any digital signal
available to the UDB array to be used as an interrupt source.
Fixed function interrupts and all interrupt sources may be routed
to any interrupt vector using the UDB interrupt source
connections.
USB Endpoint Data phub_termout1[9] udb_intr[25]
Reserved
phub_termout1[10] udb_intr[26]
phub_termout1[11] udb_intr[27]
phub_termout1[12] udb_intr[28]
phub_termout1[13] udb_intr[29]
phub_termout1[14] udb_intr[30]
Reserved
DFB Int
Decimator Int
PHUB Error Int
EEPROM Fault Int phub_termout1[15] udb_intr[31]
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
5. Memory
Table 5-1. Flash Protection
Protection
5.1 Static RAM
Allowed
Not Allowed
Setting
CY8C36 Static RAM (SRAM) is used for temporary data storage.
Up to 8 KB of SRAM is provided and can be accessed by the
8051 or the DMA controller. See Memory Map on page 19.
Simultaneous access of SRAM by the 8051 and the DMA
controller is possible if different 4-KB blocks are accessed.
Unprotected
External read and write
+ internal read and write
–
Factory
Upgrade
External write + internal External read
read and write
5.2 Flash Program Memory
Field Upgrade Internal read and write External read and
write
Flash memory in PSoC devices provides nonvolatile storage for
user firmware, user configuration data, bulk data storage, and
optional ECC data. The main flash memory area contains up to
64 KB of user program space.
Full Protection Internal read
External read and
write + internal write
Disclaimer
Up to an additional 8 KB of flash space is available for ECC. If
ECC is not used this space can store device configuration data
and bulk user data. User code may not be run out of the ECC
flash memory section. ECC can correct one bit error and detect
two bit errors per 8 bytes of firmware memory; an interrupt can
be generated when an error is detected.
Note the following details of the flash code protection features on
Cypress devices.
Cypress products meet the specifications contained in their
particular Cypress datasheets. Cypress believes that its family of
products is one of the most secure families of its kind on the
market today, regardless of how they are used. There may be
methods, unknown to Cypress, that can breach the code
protection features. Any of these methods, to our knowledge,
would be dishonest and possibly illegal. Neither Cypress nor any
other semiconductor manufacturer can guarantee the security of
their code. Code protection does not mean that we are
guaranteeing the product as “unbreakable.”
Flash is read in units of rows; each row is 9 bytes wide with 8
bytes of data and 1 byte of ECC data. When a row is read, the
data bytes are copied into an 8-byte instruction buffer. The CPU
fetches its instructions from this buffer, for improved CPU
performance.
Flash programming is performed through a special interface and
preempts code execution out of flash. The flash programming
interface performs flash erasing, programming and setting code
protection levels. Flash in-system serial programming (ISSP),
typically used for production programming, is possible through
both the SWD and JTAG interfaces. In-system programming,
typically used for bootloaders, is also possible using serial
interfaces such as I2C, USB, UART, and SPI, or any
communications protocol.
Cypress is willing to work with the customer who is concerned
about the integrity of their code. Code protection is constantly
evolving. We at Cypress are committed to continuously
improving the code protection features of our products.
5.4 EEPROM
PSoC EEPROM memory is a byte-addressable nonvolatile
memory. The CY8C36 has up to 2 KB of EEPROM memory to
store user data. Reads from EEPROM are random access at the
byte level. Reads are done directly; writes are done by sending
write commands to an EEPROM programming interface. CPU
code execution can continue from flash during EEPROM writes.
EEPROM is erasable and writeable at the row level. The
EEPROM is divided into 128 rows of 16 bytes each.
5.3 Flash Security
All PSoC devices include a flexible flash-protection model that
prevents access and visibility to on-chip flash memory. This
prevents duplication or reverse engineering of proprietary code.
Flash memory is organized in blocks, where each block contains
256 bytes of program or data and 32 bytes of ECC or
configuration data. A total of up to 256 blocks is provided on
64-KB flash devices.
The CPU can not execute out of EEPROM. There is no ECC
hardware associated with EEPROM. If ECC is required it must
be handled in firmware.
The device offers the ability to assign one of four protection
levels to each row of flash. Table 5-1 lists the protection modes
available. Flash protection levels can only be changed by
performing a complete flash erase. The Full Protection and Field
Upgrade settings disable external access (through a debugging
tool such as PSoC Creator, for example). If your application
requires code update through a boot loader, then use the Field
Upgrade setting. Use the Unprotected setting only when no
security is needed in your application. The PSoC device also
offers an advanced security feature called Device Security which
permanently disables all test, programming, and debug ports,
protecting your application from external access (see Device
Security on page 56). For more information about how to take full
advantage of the security features in PSoC, see the PSoC 3
TRM.
5.5 External Memory Interface
CY8C36 provides an external memory interface (EMIF) for
connecting to external memory devices. The connection allows
read and write accesses to external memories. The EMIF
operates in conjunction with UDBs, I/O ports, and other
hardware to generate external memory address and control
signals. At 33 MHz, each memory access cycle takes four bus
clock cycles.
Figure 5-1 is the EMIF block diagram. The EMIF supports
synchronous and asynchronous memories. The CY8C36
supports only one type of external memory device at a time.
External memory can be accessed through the 8051 xdata
space; up to 24 address bits can be used. See xdata Space on
page 21. The memory can be 8 or 16 bits wide.
Document Number: 001-53413 Rev. *I
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Figure 5-1. EMIF Block Diagram
Externa_l MEM_ ADDR[23:0]
Externa_l MEM_DATA[15:0]
Address Signals
IO
PORTs
Data,
Address,
and Control
Signals
Data Signals
IO
IO IF
PORTs
Control Signals
IO
Control
PORTs
PHUB
Data,
Address,
and Control
Signals
DSI Dynamic Output
Control
UDB
DSI to Port
Other
EM Control
Signals
Control
Signals
Data,
Address,
and Control
Signals
EMIF
Figure 5-2. 8051 Internal Data Space
5.6 Memory Map
The CY8C36 8051 memory map is very similar to the MCS-51
memory map.
0x00
4 Banks, R0-R7 Each
0x1F
0x20
0x2F
0x30
5.6.1 Code Space
Bit-Addressable Area
The CY8C36 8051 code space is 64 KB. Only main flash exists
in this space. See the “Flash Program Memory” section on
page 18.
Lower Core RAM Shared with Stack Space
(direct and indirect addressing)
0x7F
0x80
5.6.2 Internal Data Space
The CY8C36 8051 internal data space is 384 bytes, compressed
within a 256-byte space. This space consists of 256 bytes of
RAM (in addition to the SRAM mentioned in “Static RAM” on
page 18) and a 128-byte space for Special Function Registers
(SFRs). See Figure 5-2. The lowest 32 bytes are used for four
banks of registers R0-R7. The next 16 bytes are bit-addressable.
SFR
Upper Core RAM Shared
with Stack Space
(indirect addressing)
Special Function Registers
(direct addressing)
0xFF
In addition to the register or bit address modes used with the
lower 48 bytes, the lower 128 bytes can be accessed with direct
or indirect addressing. With direct addressing mode, the upper
128 bytes map to the SFRs. With indirect addressing mode, the
upper 128 bytes map to RAM. Stack operations use indirect
addressing; the 8051 stack space is 256 bytes. See the
“Addressing Modes” section on page 11.
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5.6.3 SFRs
The special function register (SFR) space provides access to frequently accessed registers. The memory map for the SFR memory
space is shown in Table 5-2.
Table 5-2. SFR Map
Address
0×F8 SFRPRT15DR
0×F0
0/8
1/9
2/A
SFRPRT15SEL
SFRPRT12SEL
MXAX
3/B
4/C
5/D
6/E
7/F
SFRPRT15PS
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
B
–
0×E8 SFRPRT12DR
0×E0 ACC
SFRPRT12PS
–
–
0×D8 SFRPRT6DR
0×D0 PSW
SFRPRT6PS
SFRPRT6SEL
–
–
0×C8 SFRPRT5DR
0×C0 SFRPRT4DR
SFRPRT5PS
SFRPRT5SEL
SFRPRT4SEL
–
SFRPRT4PS
0×B8
–
–
0×B0 SFRPRT3DR
0×A8 IE
SFRPRT3PS
SFRPRT3SEL
–
–
0×A0 P2AX
–
SFRPRT1SEL
SFRPRT2SEL
–
0×98 SFRPRT2DR
0×90 SFRPRT1DR
SFRPRT2PS
SFRPRT1PS
SFRPRT0PS
SP
DPX0
–
DPX1
–
0×88
–
SFRPRT0SEL
DPL0
0×80 SFRPRT0DR
DPH0
DPL1
DPH1
DPS
The CY8C36 family provides the standard set of registers found
on industry standard 8051 devices. In addition, the CY8C36
devices add SFRs to provide direct access to the I/O ports on the
device. The following sections describe the SFRs added to the
CY8C36 family.
During a MOVX instruction using the R0 or R1 register, the most
significant byte of the address is always equal to the contents of
MXAX, and the next most significant byte is always equal to the
contents of P2AX.
I/O Port SFRs
XData Space Access SFRs
The I/O ports provide digital input sensing, output drive, pin
interrupts, connectivity for analog inputs and outputs, LCD, and
access to peripherals through the DSI. Full information on I/O
ports is found in I/O System and Routing on page 28.
The 8051 core features dual DPTR registers for faster data
transfer operations. The data pointer select SFR, DPS, selects
which data pointer register, DPTR0 or DPTR1, is used for the
following instructions:
I/O ports are linked to the CPU through the PHUB and are also
available in the SFRs. Using the SFRs allows faster access to a
limited set of I/O port registers, while using the PHUB allows boot
configuration and access to all I/O port registers.
MOVX @DPTR, A
MOVX A, @DPTR
MOVC A, @A+DPTR
JMP @A+DPTR
INC DPTR
Each SFR supported I/O port provides three SFRs:
SFRPRTxDR sets the output data state of the port (where × is
port number and includes ports 0–6, 12 and 15).
The SFRPRTxSEL selects whether the PHUB PRTxDR
register or the SFRPRTxDR controls each pin’s output buffer
within the port. If a SFRPRTxSEL[y] bit is high, the
corresponding SFRPRTxDR[y] bit sets the output state for that
pin. If a SFRPRTxSEL[y] bit is low, the corresponding
PRTxDR[y] bit sets the output state of the pin (where y varies
from 0 to 7).
MOV DPTR, #data16
The extended data pointer SFRs, DPX0, DPX1, MXAX, and
P2AX, hold the most significant parts of memory addresses
during access to the xdata space. These SFRs are used only
with the MOVX instructions.
During a MOVX instruction using the DPTR0/DPTR1 register,
the most significant byte of the address is always equal to the
contents of DPX0/DPX1.
The SFRPRTxPS is a read only register that contains pin state
values of the port pins.
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5.6.3.1 xdata Space
6. System Integration
The 8051 xdata space is 24-bit, or 16 MB in size. The majority of
this space is not “external”—it is used by on-chip components.
See Table 5-3. External, that is, off-chip, memory can be
accessed using the EMIF. See External Memory Interface on
page 18.
6.1 Clocking System
The clocking system generates, divides, and distributes clocks
throughout the PSoC system. For the majority of systems, no
external crystal is required. The IMO and PLL together can
generate up to a 66 MHz clock, accurate to ±1% over voltage and
temperature. Additional internal and external clock sources allow
each design to optimize accuracy, power, and cost. All of the
system clock sources can be used to generate other clock
frequencies in the 16-bit clock dividers and UDBs for anything
the user wants, for example a UART baud rate generator.
Table 5-3. XDATA Data Address Map
Address Range
0×00 0000 – 0×00 1FFF
0×00 4000 – 0×00 42FF
0×00 4300 – 0×00 43FF
0×00 4400 – 0×00 44FF
0×00 4500 – 0×00 45FF
0×00 4700 – 0×00 47FF
0×00 4900 – 0×00 49FF
0×00 4E00 – 0×00 4EFF
0×00 4F00 – 0×00 4FFF
0×00 5000 – 0×00 51FF
0×00 5400 – 0×00 54FF
Purpose
SRAM
Clocking, PLLs, and oscillators
Power management
Interrupt controller
Clock generation and distribution is automatically configured
through the PSoC Creator IDE graphical interface. This is based
on the complete system’s requirements. It greatly speeds the
design process. PSoC Creator allows you to build clocking
systems with minimal input. You can specify desired clock
frequencies and accuracies, and the software locates or builds a
clock that meets the required specifications. This is possible
because of the programmability inherent PSoC.
Ports interrupt control
Flash programming interface
I2C controller
Decimator
Key features of the clocking system include:
Fixed timer/counter/PWMs
I/O ports control
Seven general purpose clock sources
3- to 62-MHz IMO, ±1% at 3 MHz
4- to 33-MHz external crystal oscillator (MHzECO)
Clock doubler provides a doubled clock frequency output for
the USB block, see USB Clock Domain on page 24.
DSI signal from an external I/O pin or other logic
24- to 67-MHz fractional PLL sourced from IMO, MHzECO,
or DSI
External Memory Interface
(EMIF) control registers
0×00 5800 – 0×00 5FFF
0×00 6000 – 0×00 60FF
0×00 6400 – 0×00 6FFF
0×00 7000 – 0×00 7FFF
0×00 8000 – 0×00 8FFF
0×00 A000 – 0×00 A400
0×00 C000 – 0×00 C800
0×01 0000 – 0×01 FFFF
Analog Subsystem interface
USB controller
UDB configuration
PHUB configuration
EEPROM
Clock doubler
1-kHz, 33-kHz, 100-kHz ILO for WDT and sleep timer
32.768-kHz external crystal oscillator (kHzECO) for RTC
CAN
IMO has a USB mode that auto locks to the USB bus clock
requiring no external crystal for USB. (USB equipped parts only)
Digital Filter Block
Digital Interconnect
configuration
Independently sourced clock in all clock dividers
Eight 16-bit clock dividers for the digital system
Four 16-bit clock dividers for the analog system
Dedicated 16-bit divider for the bus clock
Dedicated 4-bit divider for the CPU clock
0×05 0220 – 0×05 02F0
0×08 0000 – 0×08 1FFF
0×80 0000 – 0×FF FFFF
Debug controller
flash ECC bytes
External Memory Interface
Automatic clock configuration in PSoC Creator
Document Number: 001-53413 Rev. *I
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Figure 6-1. Clocking Subsystem
External IO
or DSI
0-66 MHz
3-62 MHz
IMO
4-33 MHz
ECO
1,33,100 kHz
ILO
32 kHz ECO
12-48 MHz
Doubler
CPU
Clock
CPU Clock Divider
4 bit
24-67 MHz
PLL
System
Clock Mux
Bus
Clock
Bus Clock Divider
16 bit
s
k
e
w
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
s
k
e
w
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Analog Clock
Divider 16 bit
7
s
k
e
w
7
Analog Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
s
k
e
w
Analog Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Digital Clock
Divider 16 bit
Table 6-1. Oscillator Summary
Source
IMO
Fmin
3 MHz
4 MHz
Tolerance at Fmin
±1% over voltage and temperature
Crystal dependent
Fmax
62 MHz
33 MHz
Tolerance at Fmax
±7%
Startup Time
10 µs max
MHzECO
Crystal dependent
5 ms typ, max is
crystal dependent
DSI
PLL
0 MHz
Input dependent
66 MHz
67 MHz
48 MHz
100 kHz
Input dependent
Input dependent
Input dependent
–55%, +100%
Input dependent
250 µs max
1 µs max
24 MHz Input dependent
12 MHz Input dependent
Doubler
ILO
1 kHz
–50%, +100%
15 ms max in lowest
power mode
kHzECO
32 kHz
Crystal dependent
32 kHz
Crystal dependent
500 ms typ, max is
crystal dependent
6.1.1 Internal Oscillators
6.1.1.2 Clock Doubler
The clock doubler outputs a clock at twice the frequency of the
input clock. The doubler works for input frequency ranges of 6 to
24 MHz (providing 12 to 48 MHz at the output). It can be
configured to use a clock from the IMO, MHzECO, or the DSI
(external pin). The doubler is typically used to clock the USB.
6.1.1.1 Internal Main Oscillator
In most designs the IMO is the only clock source required, due
to its ±1% accuracy. The IMO operates with no external
components and outputs a stable clock. A factory trim for each
frequency range is stored in the device. With the factory trim,
tolerance varies from ±1% at 3 MHz, up to ±7% at 62 MHz. The
IMO, in conjunction with the PLL, allows generation of CPU and
system clocks up to the device's maximum frequency (see
Phase-Locked Loop).
6.1.1.3 Phase-Locked Loop
The PLL allows low frequency, high accuracy clocks to be
multiplied to higher frequencies. This is a tradeoff between
higher clock frequency and accuracy and, higher power
consumption and increased startup time.
The IMO provides clock outputs at 3, 6, 12, 24, 48, and 62 MHz.
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The PLL block provides a mechanism for generating clock
Figure 6-2. MHzECO Block Diagram
frequencies based upon a variety of input sources. The PLL
outputs clock frequencies in the range of 24 to 67 MHz. Its input
and feedback dividers supply 4032 discrete ratios to create
almost any desired system clock frequency. The accuracy of the
PLL output depends on the accuracy of the PLL input source.
The most common PLL use is to multiply the IMO clock at 3 MHz,
where it is most accurate, to generate the CPU and system
clocks up to the device’s maximum frequency.
XCLK_MHZ
4 – 33 MHz
Crystal Osc
The PLL achieves phase lock within 250 µs (verified by bit
setting). It can be configured to use a clock from the IMO,
MHzECO or DSI (external pin). The PLL clock source can be
used until lock is complete and signaled with a lock bit. The lock
signal can be routed through the DSI to generate an interrupt.
Disable the PLL before entering low-power modes.
Xo
Xi
(Pin P15[0])
(Pin P15[1])
4 – 33 MHz
crystal
External
Components
Capacitors
6.1.1.4 Internal Low-Speed Oscillator
The ILO provides clock frequencies for low-power consumption,
including the watchdog timer, and sleep timer. The ILO
generates up to three different clocks: 1 kHz, 33 kHz, and
100 kHz.
6.1.2.2 32.768-kHz ECO
The 32.768-kHz external crystal oscillator (32kHzECO) provides
precision timing with minimal power consumption using an
external 32.768-kHz watch crystal (see Figure 6-3). The
32kHzECO also connects directly to the sleep timer and provides
the source for the RTC. The RTC uses a 1-second interrupt to
implement the RTC functionality in firmware.
The 1-kHz clock (CLK1K) is typically used for a background
‘heartbeat’ timer. This clock inherently lends itself to low-power
supervisory operations such as the watchdog timer and long
sleep intervals using the central timewheel (CTW).
The central timewheel is a 1-kHz, free-running, 13-bit counter
clocked by the ILO. The central timewheel is always enabled,
except in hibernate mode and when the CPU is stopped during
debug on chip mode. It can be used to generate periodic
interrupts for timing purposes or to wake the system from a
low-power mode. Firmware can reset the central timewheel.
Systems that require accurate timing should use the RTC
capability instead of the central timewheel.
The oscillator works in two distinct power modes. This allows
users to trade off power consumption with noise immunity from
neighboring circuits. The GPIO pins connected to the external
crystal and capacitors are fixed.
Figure 6-3. 32kHzECO Block Diagram
The 100-kHz clock (CLK100K) works as a low-power system
clock to run the CPU. It can also generate time intervals such as
fast sleep intervals using the fast timewheel.
XCLK32K
32 kHz
Crystal Osc
The fast timewheel is a 100-kHz, 5-bit counter clocked by the ILO
that can also be used to wake the system. The fast timewheel
settings are programmable, and the counter automatically resets
when the terminal count is reached. This enables flexible,
periodic wakeups of the CPU at a higher rate than is allowed
using the central timewheel. The fast timewheel can generate an
optional interrupt each time the terminal count is reached.
Xo
Xi
(Pin P15[2])
(Pin P15[3])
The 33-kHz clock (CLK33K) comes from a divide-by-3 operation
on CLK100K. This output can be used as a reduced accuracy
version of the 32.768-kHz ECO clock with no need for a crystal.
32 kHz
crystal
External
Components
Capacitors
6.1.2 External Oscillators
6.1.2.1 MHz External Crystal Oscillator
6.1.2.3 Digital System Interconnect
The MHzECO provides high frequency, high precision clocking
using an external crystal (see Figure 6-2). It supports a wide
variety of crystal types, in the range of 4 to 33 MHz. When used
in conjunction with the PLL, it can generate CPU and system
clocks up to the device's maximum frequency (see
Phase-Locked Loop). The GPIO pins connecting to the external
crystal and capacitors are fixed. MHzECO accuracy depends on
the crystal chosen.
The DSI provides routing for clocks taken from external clock
oscillators connected to I/O. The oscillators can also be
generated within the device in the digital system and UDBs.
While the primary DSI clock input provides access to all clocking
resources, up to eight other DSI clocks (internally or externally
generated) may be routed directly to the eight digital clock
dividers. This is only possible if there are multiple precision clock
sources.
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
6.1.3 Clock Distribution
Each clock divider consists of an 8-input multiplexer, a 16-bit
clock divider (divide by 2 and higher) that generates ~50% duty
cycle clocks, system clock resynchronization logic, and deglitch
logic. The outputs from each digital clock tree can be routed into
the digital system interconnect and then brought back into the
clock system as an input, allowing clock chaining of up to 32 bits.
All seven clock sources are inputs to the central clock distribution
system. The distribution system is designed to create multiple
high precision clocks. These clocks are customized for the
design’s requirements and eliminate the common problems
found with limited resolution prescalers attached to peripherals.
The clock distribution system generates several types of clock
trees.
6.1.4 USB Clock Domain
The USB clock domain is unique in that it operates largely
asynchronously from the main clock network. The USB logic
contains a synchronous bus interface to the chip, while running
on an asynchronous clock to process USB data. The USB logic
requires a 48 MHz frequency. This frequency can be generated
from different sources, including DSI clock at 48 MHz or doubled
value of 24 MHz from internal oscillator, DSI signal, or crystal
oscillator.
The system clock is used to select and supply the fastest clock
in the system for general system clock requirements and clock
synchronization of the PSoC device.
Bus clock 16-bit divider uses the system clock to generate the
system's bus clock used for data transfers. Bus clock is the
source clock for the CPU clock divider.
Eight fully programmable 16-bit clock dividers generate digital
system clocks for general use in the digital system, as
configured by the design’s requirements. Digital system clocks
can generate custom clocks derived from any of the seven
clock sources for any purpose. Examples include baud rate
generators, accurate PWM periods, and timer clocks, and
many others. If more than eight digital clock dividers are
required, theUniversalDigitalBlocks(UDBs)andfixedfunction
timer/counter/PWMs can also generate clocks.
Four16-bitclockdividersgenerateclocksfortheanalogsystem
components that require clocking, such as ADC and mixers.
The analog clock dividers include skew control to ensure that
critical analog events do not occur simultaneously with digital
switching events. This is done to reduce analog system noise.
6.2 Power System
The power system consists of separate analog, digital, and I/O
supply pins, labeled Vdda, Vddd, and Vddio×, respectively. It
also includes two internal 1.8 V regulators that provide the digital
(Vccd) and analog (Vcca) supplies for the internal core logic. The
output pins of the regulators (Vccd and Vcca) and the Vddio pins
must have capacitors connected as shown in Figure 6-4. The
two Vccd pins must be shorted together, with as short a trace as
possible, and connected to a 1-µF ±10% ×5R capacitor. The
power system also contains a sleep regulator, an I2C regulator,
and a hibernate regulator.
Figure 6-4. PSoC Power System
µF
1
Vddd
Vddio2
Vddio0
0.1 µF
0.1µF
I/O Supply
I/O Supply
Vddio0
0.1µF
I2C
Regulator
Sleep
Regulator
Digital
Vdda
Domain
Vdda
Vcca
Analog
Regulator
0.1µF
Digital
Regulators
Vssd
.
µF
1
Vssa
Analog
Domain
Hibernate
Regulator
I/O Supply
I/O Supply
0.1µF
0.1 µF
0.1 µF
Vddd
Vddio1
Vddio3
Note The two Vccd pins must be connected together with as short a trace as possible. A trace under the device is recommended, as
shown in Figure 2-6 on page 10.
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PSoC® 3: CY8C36 Family Datasheet
6.2.1 Power Modes
Active is the main processing mode. Its functionality is
configurable. Each power controllable subsystem is enabled or
disabled by using separate power configuration template
registers. In alternate active mode, fewer subsystems are
enabled, reducing power. In sleep mode most resources are
disabled regardless of the template settings. Sleep mode is
optimized to provide timed sleep intervals and RTC functionality.
The lowest power mode is hibernate, which retains register and
SRAM state, but no clocks, and allows wakeup only from I/O
pins. Figure 6-5 illustrates the allowable transitions between
power modes.
PSoC 3 devices have four different power modes, as shown in
Table 6-1 and Table 6-2. The power modes allow a design to
easily provide required functionality and processing power while
simultaneously minimizing power consumption and maximizing
battery life in low-power and portable devices.
PSoC 3 power modes, in order of decreasing power
consumption are:
Active
Alternate Active
Sleep
.
Hibernate
Table 6-1. Power Modes
Power
Wakeup
Source
Description
Entry Condition
Active Clocks
Regulator
Modes
Active
Primary mode of operation, all periph- Wakeup, reset,
Any interrupt Any
All regulators available. Digital
erals available (programmable)
manual register
entry
(programmable) and analog regulators can be
disabled if external regulation
used.
Alternate
Active
Similar to Active mode, and is typically Manual register
configured to have fewer peripherals entry
active to reduce power. One possible
Any interrupt Any
All regulators available. Digital
(programmable) and analog regulators can be
disabled if external regulation
configuration is to use the UDBs for
used.
processing, with the CPU turned off
Sleep
Allsubsystemsautomaticallydisabled Manual register
entry
Comparator, ILO/kHzECO
Both digital and analog
regulators buzzed.
Digital and analog regulators
can be disabled if external
regulation used.
2
PICU, I C,
RTC, CTW,
LVD
Hibernate Allsubsystemsautomaticallydisabled Manual register
Lowest power consuming mode with entry
all peripherals and internal regulators
disabled, excepthibernateregulatoris
enabled
PICU
–
Only hibernate regulator active.
Configuration and memory contents
retained
Table 6-2. Power Modes Wakeup Time and Power Consumption
Sleep
Modes
Wakeup
Time
Current
(Typ)
Code
Digital
Analog
ClockSources
Available
Reset
Wakeup Sources
Sources
Execution Resources Resources
Active
–
–
1.2 mA[16]
Yes
All
All
All
All
All
All
–
–
All
All
Alternate
Active
–
User
defined
<15 µs
1 µA
No
I2C
Comparator ILO/kHzECO
Comparator,
PICU, I2C, RTC,
CTW, LVD
XRES, LVD,
WDR
Sleep
Hibernate <100 µs
200 nA
No
None
None
None
PICU
XRES
Note
16. Bus clock off. Execute from CPU instruction buffer at 6 MHz. See Table 11-2 on page 59.
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Figure 6-5. Power Mode Transitions
central timewheel provides periodic interrupts to allow the
system to wake up, poll peripherals, or perform real-time
functions. Reset event sources include the external reset I/O pin
(XRES), WDT, and precision reset (PRES).
Active
6.2.2 Boost Converter
Applications that use a supply voltage of less than 1.71 V, such
as solar or single cell battery supplies, may use the on-chip boost
converter. The boost converter may also be used in any system
that requires a higher operating voltage than the supply provides.
For instance, this includes driving 5.0 V LCD glass in a 3.3 V
system. The boost converter accepts an input voltage as low as
0.5 V. With one low cost inductor it produces a selectable output
voltage sourcing enough current to operate the PSoC and other
on-board components.
Manual
Sleep
Hibernate
Alternate
Active
The boost converter accepts an input voltage from 0.5 V to 5.5 V
(Vbat), and can start up with Vbat as low as 0.5 V. The converter
provides a user configurable output voltage of 1.8 to 5.0 V
(Vboost). Vbat is typically less than Vboost; if Vbat is greater than
or equal to Vboost, then Vboost will be the same as Vbat. The
block can deliver up to 50 mA (Iboost) depending on
configuration.
6.2.1.1 Active Mode
Active mode is the primary operating mode of the device. When
in active mode, the active configuration template bits control
which available resources are enabled or disabled. When a
resource is disabled, the digital clocks are gated, analog bias
currents are disabled, and leakage currents are reduced as
appropriate. User firmware can dynamically control subsystem
power by setting and clearing bits in the active configuration
template. The CPU can disable itself, in which case the CPU is
automatically reenabled at the next wakeup event.
Four pins are associated with the boost converter: Vbat, Vssb,
Vboost, and Ind. The boosted output voltage is sensed at the
Vboost pin and must be connected directly to the chip’s supply
inputs. An inductor is connected between the Vbat and Ind pins.
You can optimize the inductor value to increase the boost
converter efficiency based on input voltage, output voltage,
current and switching frequency. The external Schottky diode
shown in Figure 6-6 is required only in cases when Vboost >
3.6 V.
When a wakeup event occurs, the global mode is always
returned to active, and the CPU is automatically enabled,
regardless of its template settings. Active mode is the default
global power mode upon boot.
6.2.1.2 Alternate Active Mode
Figure 6-6. Application for Boost Converter
Alternate Active mode is very similar to Active mode. In alternate
active mode, fewer subsystems are enabled, to reduce power
consumption. One possible configuration is to turn off the CPU
and flash, and run peripherals at full speed.
Vdda Vddd Vddio
Vboost
Ind
Optional
Schottky Diode
Only required
Vboost>3.6 V
6.2.1.3 Sleep Mode
Sleep mode reduces power consumption when a resume time of
15 µs is acceptable. The wake time is used to ensure that the
regulator outputs are stable enough to directly enter active
mode.
22µF 0. 1µF
PSoC
10 µH
22µF
SMP
6.2.1.4 Hibernate Mode
Vbat
Vssb
In hibernate mode nearly all of the internal functions are
disabled. Internal voltages are reduced to the minimal level to
keep vital systems alive. Configuration state is preserved in
hibernate mode and SRAM memory is retained. GPIOs
configured as digital outputs maintain their previous values and
external GPIO pin interrupt settings are preserved. The device
can only return from hibernate mode in response to an external
I/O interrupt. The resume time from hibernate mode is less than
100 µs.
Vssa
Vssd
The switching frequency can be set to 100 kHz, 400 kHz, 2 MHz,
or 32 kHz to optimize efficiency and component cost. The
100 kHz, 400 kHz, and 2 MHz switching frequencies are
generated using oscillators internal to the boost converter block.
When the 32-kHz switching frequency is selected, the clock is
derived from a 32 kHz external crystal oscillator. The 32-kHz
external clock is primarily intended for boost standby mode.
6.2.1.5 Wakeup Events
Wakeup events are configurable and can come from an interrupt
or device reset. A wakeup event restores the system to active
mode. Firmware enabled interrupt sources include internally
generated interrupts, power supervisor, central timewheel, and
I/O interrupts. Internal interrupt sources can come from a variety
of peripherals, such as analog comparators and UDBs. The
At 2 MHz the Vboost output is limited to 2 × Vbat, and at 400 kHz
Vboost is limited to 4 × Vbat.
The boost converter can be operated in two different modes:
active and standby. Active mode is the normal mode of operation
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PSoC® 3: CY8C36 Family Datasheet
where the boost regulator actively generates a regulated output
Figure 6-7. Resets
voltage. In standby mode, most boost functions are disabled,
thus reducing power consumption of the boost circuit. The
converter can be configured to provide low-power, low-current
regulation in the standby mode. The external 32 kHz crystal can
be used to generate inductor boost pulses on the rising and
falling edge of the clock when the output voltage is less than the
programmed value. This is called automatic thump mode (ATM).
Vddd Vdda
Power
Voltage
Level
Monitors
Processor
Interrupt
The boost typically draws 200 µA in active mode and 12 µA in
standby mode. The boost operating modes must be used in
conjunction with chip power modes to minimize the total chip
power consumption. Table 6-1 lists the boost power modes
available in different chip power modes.
Reset
Pin
External
Reset
Reset
Controller
System
Reset
Table 6-1. Chip and Boost Power Modes Compatibility
Watchdog
Timer
Chip Power Modes
Boost Power Modes
Chip – Active mode
Boost can be operated in either active
or standby mode.
Software
Reset
Register
Chip – Sleep mode
Boost can be operated in either active
or standby mode. However, it is recom-
mended to operate boost in standby
mode for low-power consumption
Chip – Hibernate mode Boost can only be operated in active
mode. However, it is recommended not
to use boost in chip hibernate mode
due to high current consumption in
boost active mode
The term device reset indicates that the processor as well as
analog and digital peripherals and registers are reset.
A reset status register holds the source of the most recent reset
or power voltage monitoring interrupt. The program may
examine this register to detect and report exception conditions.
This register is cleared after a power on reset.
If the boost converter is not used in a given application, tie the
Vbat, Vssb, and Vboost pins to ground and leave the Ind pin
unconnected.
6.3.1 Reset Sources
6.3.1.1 Power Voltage Level Monitors
IPOR – Initial POR
6.3 Reset
CY8C36 has multiple internal and external reset sources
available. The reset sources are:
At initial power on, IPOR monitors the power voltages Vddd
and Vdda, both directly at the pins and at the outputs of the
corresponding internal regulators. The trip level is not precise.
It is set to approximately 1 volt, which is below the lowest
specified operating voltage but high enough for the internal
circuits to be reset and to hold their reset state. The monitor
generates a reset pulse that is at least 100 ns wide. It may be
much wider if one or more of the voltages ramps up slowly.
Power source monitoring – The analog and digital power
voltages, Vdda, Vddd, Vcca, and Vccd are monitored in several
different modes during power up, active mode, and sleep mode
(buzzing). If any of the voltages goes outside predetermined
ranges then a reset is generated. The monitors are
programmable to generate an interrupt to the processor under
To save power the IPOR circuit is disabled when the internal
digital supply is stable. Voltage supervision is then handed off
to the precise low voltage reset (PRES) circuit. When the
voltage is high enough for PRES to release, the IMO starts.
certain conditions before reaching the reset thresholds.
External – The device can be reset from an external source by
pulling the reset pin (XRES) low. The XRES pin includes an
internal pull-up to Vddio1. Vddd, Vdda, and Vddio1 must all
have voltage applied before the part comes out of reset.
PRES – Precise Low Voltage Reset
This circuit monitors the outputs of the analog and digital
internal regulators after power up. The regulator outputs are
compared to a precise reference voltage. The response to a
PRES trip is identical to an IPOR reset.
Watchdog timer – A watchdog timer monitors the execution of
instructions by the processor. If the watchdog timer is not reset
by firmware within a certain period of time, the watchdog timer
generates a reset.
In normal operating mode, the program cannot disable the
digital PRES circuit. The analog regulator can be disabled,
which also disables the analog portion of the PRES. The PRES
circuit is disabled automatically during sleep and hibernate
modes, with one exception: During sleep mode the regulators
are periodically activated (buzzed) to provide supervisory
services and to reduce wakeup time. At these times the PRES
circuit is also buzzed to allow periodic voltage monitoring.
Software – The device can be reset under program control.
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PSoC® 3: CY8C36 Family Datasheet
ALVI, DLVI, AHVI – Analog/Digital Low Voltage Interrupt,
Analog High Voltage Interrupt
6.4 I/O System and Routing
PSoC I/Os are extremely flexible. Every GPIO has analog and
digital I/O capability. All I/Os have a large number of drive modes,
which are set at POR. PSoC also provides up to four individual
I/O voltage domains through the Vddio pins.
Interrupt circuits are available to detect when Vdda and Vddd
go outside a voltage range. For AHVI, Vdda is compared to a
fixed trip level. For ALVI and DLVI, Vdda and Vddd are
compared to trip levels that are programmable, as listed in
Table 6-2. ALVI and DLVI can also be configured to generate
a device reset instead of an interrupt.
There are two types of I/O pins on every device; those with USB
provide a third type. Both General Purpose I/O (GPIO) and
Special I/O (SIO) provide similar digital functionality. The primary
differences are their analog capability and drive strength.
Devices that include USB also provide two USBIO pins that
support specific USB functionality as well as limited GPIO
capability.
Table 6-2. Analog/Digital Low Voltage Interrupt, Analog High
Voltage Interrupt
Normal
Voltage
Range
Available Trip
Interrupt Supply
Accuracy
Settings
All I/O pins are available for use as digital inputs and outputs for
both the CPU and digital peripherals. In addition, all I/O pins can
generate an interrupt. The flexible and advanced capabilities of
the PSoC I/O, combined with any signal to any pin routability,
greatly simplify circuit design and board layout. All GPIO pins can
be used for analog input, CapSense , and LCD segment drive,
while SIO pins are used for voltages in excess of V
programmable output voltages.
DLVI
ALVI
AHVI
Vddd 1.71 V–5.5 V 1.70V–5.45 Vin
±2%
250 mV
increments
Vdda 1.71 V–5.5 V 1.70V–5.45 Vin
±2%
±2%
[17]
250 mV
increments
and for
DDA
Vdda 1.71 V–5.5 V 5.75 V
Features supported by both GPIO and SIO:
User programmable port reset state
SeparateI/OsuppliesandvoltagesforuptofourgroupsofI/O
Digital peripherals use DSI to connect the pins
Input or output or both for CPU and DMA
Eight drive modes
Every pin can be an interrupt source configured as rising
edge, falling edge or both edges. If required, level sensitive
interrupts are supported through the DSI
Dedicated port interrupt vector for each port
Slew rate controlled digital output drive mode
Access port control and configuration registers on either port
basis or pin basis
The monitors are disabled until after IPOR. During sleep mode
these circuits are periodically activated (buzzed). If an interrupt
occurs during buzzing then the system first enters its wake up
sequence. The interrupt is then recognized and may be
serviced.
6.3.1.2 Other Reset Sources
XRES – External Reset
PSoC 3 has either a single GPIO pin that is configured as an
external reset or a dedicated XRES pin. Either the dedicated
XRES pin or the GPIO pin, if configured, holds the part in reset
while held active (low). The response to an XRES is the same
as to an IPOR reset.
The external reset is active low. It includes an internal pull-up
resistor. XRES is active during sleep and hibernate modes.
SRES – Software Reset
A reset can be commanded under program control by setting
a bit in the software reset register. This is done either directly
by the program or indirectly by DMA access. The response to
a SRES is the same as after an IPOR reset.
Separateportread(PS)andwrite(DR)dataregisterstoavoid
read modify write errors
Special functionality on a pin by pin basis
Additional features only provided on the GPIO pins:
LCD segment drive on LCD equipped devices
[17]
CapSense
Analog input and output capability
Continuous 100 µA clamp current capability
Another register bit exists to disable this function.
Standard drive strength down to 1.7 V
DRES – Digital Logic Reset
Additional features only provided on SIO pins:
Higher drive strength than GPIO
Hot swap capability (5 V tolerance at any operating V
Programmable and regulated high input and output drive
levels down to 1.2 V
No analog input, CapSense, or LCD capability
Over voltage tolerance up to 5.5 V
SIO can act as a general purpose analog comparator
USBIO features:
Full speed USB 2.0 compliant I/O
Highest drive strength for general purpose use
Input, output, or both for CPU and DMA
Input, output, or both for digital peripherals
Digital output (CMOS) drive mode
Each pin can be an interrupt source configured as rising
edge, falling edge, or both edges
A logic signal can be routed from the UDBs or other digital
peripheral source through the DSI to the Configurable XRES
pin, P1[2], to generate a hardware-controlled reset. The pin
must be placed in XRES mode. The response to a DRES is the
same as after an IPOR reset.
)
DD
WRES – Watchdog Timer Reset
The watchdog reset detects when the software program is no
longer being executed correctly. To indicate to the watchdog
timer that it is running correctly, the program must periodically
reset the timer. If the timer is not reset before a user-specified
amount of time, then a reset is generated.
Note IPOR disables the watchdog function. The program must
enable the watchdog function at an appropriate point in the
code by setting a register bit. When this bit is set, it cannot be
cleared again except by an IPOR power on reset event.
Note
17. GPIOs with opamp outputs are not recommended for use with CapSense
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Figure 6-8. GPIO Block Diagram
Digital Input Path
Naming Convention
PRT[x]CTL
PRT[x]DBL_SYNC_IN
‘x’ = Port Number
‘y’ = Pin Number
PRT[x]PS
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
Pin Interrupt Signal
PICU[x]INTSTAT
Input Buffer Disable
Interrupt
Logic
Digital Output Path
PRT[x]SLW
PRT[x]SYNC_OUT
Vddio Vddio
PRT[x]DR
0
1
In
Digital System Output
PRT[x]BYP
Vddio
Drive
Logic
PRT[x]DM2
PRT[x]DM1
PRT[x]DM0
Slew
Cntl
PIN
Bidirectional Control
PRT[x]BIE
OE
Analog
1
0
1
0
1
Capsense Global Control
CAPS[x]CFG1
Switches
PRT[x]AG
Analog Global Enable
PRT[x]AMUX
Analog Mux Enable
LCD
Display
Data
Logic & MUX
PRT[x]LCD_COM_SEG
PRT[x]LCD_EN
LCD Bias Bus
5
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 6-9. SIO Input/Output Block Diagram
Digital Input Path
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
PRT[x]SIO_HYST_EN
PRT[x]SIO_DIFF
Buffer
Thresholds
Reference Level
PRT[x]DBL_SYNC_IN
PRT[x]PS
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
Pin Interrupt Signal
PICU[x]INTSTAT
Input Buffer Disable
Interrupt
Logic
Digital Output Path
Reference Level
PRT[x]SIO_CFG
PRT[x]SLW
Driver
Vhigh
PRT[x]SYNC_OUT
PRT[x]DR
0
1
In
Digital System Output
PRT[x]BYP
Drive
Logic
PRT[x]DM2
PRT[x]DM1
PRT[x]DM0
Slew
Cntl
PIN
Bidirectional Control
PRT[x]BIE
OE
Figure 6-10. USBIO Block Diagram
Digital Input Path
Naming Convention
‘x’ = Port Number
‘y’ = Pin Number
USB Receiver Circuitry
PRT[x]DBL_SYNC_IN
USBIO_CR1[0,1]
Digital System Input
PICU[x]INTTYPE[y]
PICU[x]INTSTAT
Pin Interrupt Signal
PICU[x]INTSTAT
Interrupt
Logic
Digital Output Path
PRT[x]SYNC_OUT
USBIO_CR1[7]
D+ pin only
Vddd Vddd
USB or I/O
Vddd
5 k
USB SIE Control for USB Mode
Vddd
USBIO_CR1[4,5]
Digital System Output
PRT[x]BYP
0
1
In
Drive
1.5 k
Logic
PIN
USBIO_CR1[2]
USBIO_CR1[3]
USBIO_CR1[6]
D+ 1.5 k
D+D- 5 k
Open Drain
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PSoC® 3: CY8C36 Family Datasheet
6.4.1 Drive Modes
Each GPIO and SIO pin is individually configurable into one of the eight drive modes listed in Table 6-3. Three configuration bits are
used for each pin (DM[2:0]) and set in the PRTxDM[2:0] registers. Figure 6-11 depicts a simplified pin view based on each of the eight
drive modes. Table 6-3 shows the I/O pin’s drive state based on the port data register value or digital array signal if bypass mode is
selected. Note that the actual I/O pin voltage is determined by a combination of the selected drive mode and the load at the pin. For
example, if a GPIO pin is configured for resistive pull-up mode and driven high while the pin is floating, the voltage measured at the
pin is a high logic state. If the same GPIO pin is externally tied to ground then the voltage unmeasured at the pin is a low logic state.
Figure 6-11. Drive Mode
Vddio
Vddio
DR
PS
DR
PS
DR
PS
DR
PS
Pin
Pin
Pin
Pin
0. High Impedance 1. High Impedance
Analog Digital
2. Resistive
Pull-Up
3. Resistive
Pull-Down
Vddio
Vddio
Vddio
DR
PS
DR
PS
DR
PS
DR
PS
Pin
Pin
Pin
Pin
4. Open Drain,
Drives Low
5. Open Drain,
Drives High
6. Strong Drive
7. Resistive
Pull-Up and Pull-Down
Table 6-3. Drive Modes
Diagram
Drive Mode
PRTxDM2
PRTxDM1
PRTxDM0
PRTxDR = 1
PRTxDR = 0
High Z
0
1
2
3
4
5
6
7
High impedence analog
High Impedance digital
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
High Z
High Z
High Z
[18]
Resistive pull-up
Res High (5K)
Strong High
High Z
Strong Low
Res Low (5K)
Strong Low
High Z
[18]
Resistive pull-down
Open drain, drives low
Open drain, drive high
Strong drive
Strong High
Strong High
Res High (5K)
Strong Low
Res Low (5K)
[18]
Resistive pull-up and pull-down
Note
18. Resistive pull-up and pull-down are not available with SIO in regulated output mode.
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
High Impedance Analog
second user selected drive mode such as strong drive (set using
PRT×DM[2:0] registers) for output signals on the same pin,
based on the state of an auxiliary control bus signal. The
bidirectional capability is useful for processor busses and
communications interfaces such as the SPI Slave MISO pin that
requires dynamic hardware control of the output buffer.
The default reset state with both the output driver and digital
input buffer turned off. This prevents any current from flowing
in the I/O’s digital input buffer due to a floating voltage. This
state is recommended for pins that are floating or that support
an analog voltage. High impedance analog pins do not provide
digital input functionality.
The auxiliary control bus routes up to 16 UDB or digital peripheral
generated output enable signals to one or more pins.
To achieve the lowest chip current in sleep modes, all I/Os
must either be configured to the high impedance analog mode,
or have their pins driven to a power supply rail by the PSoC
device or by external circuitry.
6.4.4 Slew Rate Limited Mode
GPIO and SIO pins have fast and slow output slew rate options
for strong and open drain drive modes, not resistive drive modes.
Because it results in reduced EMI, the slow edge rate option is
recommended for signals that are not speed critical, generally
less than 1 MHz. The fast slew rate is for signals between 1 MHz
and 33 MHz. The slew rate is individually configurable for each
pin, and is set by the PRT×SLW registers.
High Impedance Digital
The input buffer is enabled for digital signal input. This is the
standard high impedance (HiZ) state recommended for digital
inputs.
Resistive pull-up or resistive pull-down
6.4.5 Pin Interrupts
Resistive pull-up or pull-down, respectively, provides a series
resistance in one of the data states and strong drive in the
other. Pins can be used for digital input and output in these
modes. Interfacing to mechanical switches is a common
application for these modes. Resistive pull-up and pull-down
are not available with SIO in regulated output mode.
All GPIO and SIO pins are able to generate interrupts to the
system. All eight pins in each port interface to their own Port
Interrupt Control Unit (PICU) and associated interrupt vector.
Each pin of the port is independently configurable to detect rising
edge, falling edge, both edge interrupts, or to not generate an
interrupt.
Open Drain, Drives High and Open Drain, Drives Low
Depending on the configured mode for each pin, each time an
interrupt event occurs on a pin, its corresponding status bit of the
interrupt status register is set to “1” and an interrupt request is
sent to the interrupt controller. Each PICU has its own interrupt
vector in the interrupt controller and the pin status register
providing easy determination of the interrupt source down to the
pin level.
Open drain modes provide high impedance in one of the data
states and strong drive in the other. Pins can be used for digital
input and output in these modes. A common application for
2
these modes is driving the I C bus signal lines.
Strong Drive
Provides a strong CMOS output drive in either high or low
state. This is the standard output mode for pins. Strong Drive
mode pins must not be used as inputs under normal
circumstances. This mode is often used to drive digital output
signals or external FETs.
Port pin interrupts remain active in all sleep modes allowing the
PSoC device to wake from an externally generated interrupt.
While level sensitive interrupts are not directly supported;
universal digital blocks (UDB) provide this functionality to the
system when needed.
Resistive pull-up and pull-down
Similar to the resistive pull-up and resistive pull-down modes
except the pin is always in series with a resistor. The high data
state is pull-up while the low data state is pull-down. This mode
is most often used when other signals that may cause shorts
can drive the bus. Resistive pull-up and pull-down are not
available with SIO in regulated output mode.
6.4.6 Input Buffer Mode
GPIO and SIO input buffers can be configured at the port level
for the default CMOS input thresholds or the optional LVTTL
input thresholds. All input buffers incorporate Schmitt triggers for
input hysteresis. Additionally, individual pin input buffers can be
disabled in any drive mode.
6.4.2 Pin Registers
6.4.7 I/O Power Supplies
Registers to configure and interact with pins come in two forms
that may be used interchangeably.
Up to four I/O pin power supplies are provided depending on the
device and package. Each I/O supply must be less than or equal
All I/O registers are available in the standard port form, where
each bit of the register corresponds to one of the port pins. This
register form is efficient for quickly reconfiguring multiple port
pins at the same time.
to the voltage on the chip’s analog (V
) pin. This feature allows
DDA
users to provide different I/O voltage levels for different pins on
the device. Refer to the specific device package pinout to
determine Vddio capability for a given port and pin.
I/O registers are also available in pin form, which combines the
eight most commonly used port register bits into a single register
for each pin. This enables very fast configuration changes to
individual pins with a single register write.
The SIO port pins support an additional regulated high output
capability, as described in Adjustable Output Level.
6.4.8 Analog Connections
These connections apply only to GPIO pins. All GPIO pins may
be used as analog inputs or outputs. The analog voltage present
on the pin must not exceed the Vddio supply voltage to which the
GPIO belongs. Each GPIO may connect to one of the analog
6.4.3 Bidirectional Mode
High speed bidirectional capability allows pins to provide both
the high impedance digital drive mode for input signals and a
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
global busses or to one of the analog mux buses to connect any
Figure 6-12. SIO Reference for Input and Output
pin to any internal analog resource such as ADC or comparators.
In addition, select pins provide direct connections to specific
analog features such as the high current DACs or uncommitted
opamps.
Input Path
Digital
Input
Vinref
6.4.9 CapSense
This section applies only to GPIO pins. All GPIO pins may be
[19]
used to create CapSense buttons and sliders . See the
“CapSense” section on page 53 for more information.
6.4.10 LCD Segment Drive
Reference
Generator
SIO_Ref
This section applies only to GPIO pins. All GPIO pins may be
used to generate Segment and Common drive signals for direct
glass drive of LCD glass. See the “LCD Direct Drive” section on
page 52 for details.
PIN
Voutref
Output Path
Driver
6.4.11 Adjustable Output Level
Vhigh
This section applies only to SIO pins. SIO port pins support the
ability to provide a regulated high output level for interface to
external signals that are lower in voltage than the SIO’s
respective Vddio. SIO pins are individually configurable to output
either the standard Vddio level or the regulated output, which is
based on an internally generated reference. Typically a voltage
DAC (VDAC) is used to generate the reference (see Figure
6-12). The “DAC” section on page 53 has more details on VDAC
use and reference routing to the SIO pins. Resistive pull-up and
pull-down drive modes are not available with SIO in regulated
output mode.
Digital
Output
Drive
Logic
6.4.12 Adjustable Input Level
6.4.13 SIO as Comparator
This section applies only to SIO pins. SIO pins by default support
the standard CMOS and LVTTL input levels but also support a
differential mode with programmable levels. SIO pins are
grouped into pairs. Each pair shares a reference generator block
which, is used to set the digital input buffer reference level for
interface to external signals that differ in voltage from Vddio. The
reference sets the pins voltage threshold for a high logic level
(see Figure 6-12). Available input thresholds are:
This section applies only to SIO pins. The adjustable input level
feature of the SIOs as explained in the Adjustable Input Level
section can be used to construct a comparator. The threshold for
the comparator is provided by the SIO's reference generator. The
reference generator has the option to set the analog signal
routed through the analog global line as threshold for the
comparator. Note that a pair of SIO pins share the same
threshold.
0.5 × Vddio
0.4 × Vddio
The digital input path in Figure 6-9 on page 30 illustrates this
functionality. In the figure, ‘Reference level’ is the analog signal
routed through the analog global. The hysteresis feature can
also be enabled for the input buffer of the SIO, which increases
noise immunity for the comparator.
0.5 × V
REF
V
REF
Typically a voltage DAC (VDAC) generates the V
“DAC” section on page 53 has more details on VDAC use and
reference routing to the SIO pins.
reference.
REF
6.4.14 Hot Swap
This section applies only to SIO pins. SIO pins support ‘hot swap’
capability to plug into an application without loading the signals
that are connected to the SIO pins even when no power is
applied to the PSoC device. This allows the unpowered PSoC to
maintain a high impedance load to the external device while also
preventing the PSoC from being powered through a GPIO pin’s
protection diode.
Note
19. GPIOs with opamp outputs are not recommended for use with CapSense
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PSoC® 3: CY8C36 Family Datasheet
6.4.15 Over Voltage Tolerance
All I/O pins provide an over voltage tolerance feature at any
operating V
High current IDAC outputs
External reference inputs
.
DD
6.4.19 JTAG Boundary Scan
There are no current limitations for the SIO pins as they present a
The device supports standard JTAG boundary scan chains on all
I/O pins for board level test.
high impedance load to the external circuit where Vddio < V
<
IN
5.5 V.
7. Digital Subsystem
TheGPIOpinsmustbelimitedto100µAusingacurrentlimiting
resistor. GPIO pins clamp the pin voltage to approximately one
The digital programmable system creates application specific
combinations of both standard and advanced digital peripherals
and custom logic functions. These peripherals and logic are then
interconnected to each other and to any pin on the device,
providing a high level of design flexibility and IP security.
diode above the Vddio supply where Vddio < V < V
.
IN
DDA
In case of a GPIO pin configured for analog input/output, the
analog voltage on the pin must not exceed the Vddio supply
voltage to which the GPIO belongs.
A common application for this feature is connection to a bus such
The features of the digital programmable system are outlined
here to provide an overview of capabilities and architecture. You
do not need to interact directly with the programmable digital
system at the hardware and register level. PSoC Creator
provides a high level schematic capture graphical interface to
automatically place and route resources similar to PLDs.
2
as I C where different devices are running from different supply
2
voltages. In the I C case, the PSoC chip is configured into the
Open Drain, Drives Low mode for the SIO pin. This allows an
2
external pull-up to pull the I C bus voltage above the PSoC pin
supply. For example, the PSoC chip could operate at 1.8 V, and
an external device could run from 5 V. Note that the SIO pin’s V
IH
The main components of the digital programmable system are:
and V levels are determined by the associated Vddio supply
IL
pin.
Universal Digital Blocks (UDB) – These form the core
functionality of the digital programmable system. UDBs are a
collection of uncommitted logic (PLD) and structural logic
(Datapath) optimized to create all common embedded
peripherals and customized functionality that are application or
design specific.
The I/O pin must be configured into a high impedance drive
mode, open drain low drive mode, or pull-down drive mode, for
over voltage tolerance to work properly. Absolute maximum
ratings for the device must be observed for all I/O pins.
6.4.16 Reset Configuration
Universal Digital Block Array – UDB blocks are arrayed within
a matrix of programmable interconnect. The UDB array
structure is homogeneous and allows for flexible mapping of
digital functions onto the array. The array supports extensive
and flexible routing interconnects between UDBs and the
Digital System Interconnect.
While reset is active all I/Os are reset to and held in the High
Impedance Analog state. After reset is released, the state can be
reprogrammed on a port-by-port basis to pull-down or pull-up. To
ensure correct reset operation, the port reset configuration data
is stored in special nonvolatile registers. The stored reset data is
automatically transferred to the port reset configuration registers
at reset release.
Digital System Interconnect (DSI) – Digital signals from
Universal Digital Blocks (UDBs), fixed function peripherals, I/O
pins, interrupts, DMA, and other system core signals are
attached to the Digital System Interconnect to implement full
featureddeviceconnectivity.TheDSIallowsanydigitalfunction
to any pin or other feature routability when used with the
Universal Digital Block Array.
6.4.17 Low-Power Functionality
In all low-power modes the I/O pins retain their state until the part
is awakened and changed or reset. To awaken the part, use a
pin interrupt, because the port interrupt logic continues to
function in all low-power modes.
Figure 7-1. CY8C36 Digital Programmable Architecture
6.4.18 Special Pin Functionality
Some pins on the device include additional special functionality
in addition to their GPIO or SIO functionality. The specific special
function pins are listed in Pinouts on page 5. The special features
are:
Digital Core System
and Fixed Function Peripherals
DSI Routing Interface
Digital
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
4- to 33-MHz crystal oscillator
32.768-kHz crystal oscillator
2
Wake from sleep on I C address match. Any pin can be used
2
for I C if wake from sleep is not required.
JTAG interface pins
SWD interface pins
SWV interface pins
External reset
DSI Routing Interface
Analog
Digital Core System
and Fixed Function Peripherals
Opamp inputs and outputs
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Voltage
PWM
7.1 Example Peripherals
The flexibility of the CY8C36 family’s Universal Digital Blocks
(UDBs) and Analog Blocks allow the user to create a wide range
of components (peripherals). The most common peripherals
were built and characterized by Cypress and are shown in the
PSoC Creator component catalog, however, users may also
create their own custom components using PSoC Creator. Using
PSoC Creator, users may also create their own components for
reuse within their organization, for example sensor interfaces,
proprietary algorithms, and display interfaces.
Comparators
Mixers
7.1.3 Example System Function Components
The following is a sample of the system function components
available in PSoC Creator for the CY8C36 family. The exact
amount of hardware resources (UDBs, DFB taps, SC/CT blocks,
routing, RAM, flash) used by a component varies with the
features selected in PSoC Creator for the component.
The number of components available through PSoC Creator is
too numerous to list in the datasheet, and the list is always
growing. An example of a component available for use in
CY8C36 family, but, not explicitly called out in this datasheet is
the UART component.
CapSense
LCD Drive
LCD Control
Filters
7.1.1 Example Digital Components
The following is a sample of the digital components available in
PSoC Creator for the CY8C36 family. The exact amount of
hardware resources (UDBs, routing, RAM, flash) used by a
component varies with the features selected in PSoC Creator for
the component.
7.1.4 Designing with PSoC Creator
7.1.4.1 More Than a Typical IDE
A successful design tool allows for the rapid development and
deployment of both simple and complex designs. It reduces or
eliminates any learning curve. It makes the integration of a new
design into the production stream straightforward.
Communications
2
I C
UART
SPI
PSoC Creator is that design tool.
PSoC Creator is a full featured Integrated Development
Environment (IDE) for hardware and software design. It is
optimized specifically for PSoC devices and combines a modern,
powerful software development platform with a sophisticated
graphical design tool. This unique combination of tools makes
PSoC Creator the most flexible embedded design platform
available.
Functions
EMIF
PWMs
Timers
Counters
Logic
NOT
OR
XOR
AND
Graphical design entry simplifies the task of configuring a
particular part. You can select the required functionality from an
extensive catalog of components and place it in your design. All
components are parameterized and have an editor dialog that
allows you to tailor functionality to your needs.
7.1.2 Example Analog Components
PSoC Creator automatically configures clocks and routes the I/O
to the selected pins and then generates APIs to give the
application complete control over the hardware. Changing the
PSoC device configuration is as simple as adding a new
component, setting its parameters, and rebuilding the project.
The following is a sample of the analog components available in
PSoC Creator for the CY8C36 family. The exact amount of
hardware resources (SC/CT blocks, routing, RAM, flash) used
by a component varies with the features selected in PSoC
Creator for the component.
At any stage of development you are free to change the
hardware configuration and even the target processor. To
retarget your application (hardware and software) to new
devices, even from 8- to 32-bit families, just select the new
device and rebuild.
Amplifiers
TIA
PGA
opamp
You also have the ability to change the C compiler and evaluate
an alternative. Components are designed for portability and are
validated against all devices, from all families, and against all
supported tool chains. Switching compilers is as easy as editing
the from the project options and rebuilding the application with
no errors from the generated APIs or boot code.
ADC
Delta-Sigma
DACs
Current
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 7-2. PSoC Creator Framework
Document Number: 001-53413 Rev. *I
Page 36 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
7.1.4.2 Component Catalog
7.1.4.4 Software Development
Figure 7-3. Component Catalog
Figure 7-4. Code Editor
Anchoring the tool is a modern, highly customizable user
interface. It includes project management and integrated editors
for C and assembler source code, as well the design entry tools.
Project build control leverages compiler technology from top
®
commercial vendors such as ARM Limited, Keil™, and
CodeSourcery (GNU). Free versions of Keil C51 and GNU C
Compiler (GCC) for ARM, with no restrictions on code size or end
product distribution, are included with the tool distribution.
Upgrading to more optimizing compilers is a snap with support
for the professional Keil C51 product and ARM RealView™
compiler.
The component catalog is a repository of reusable design
elements that select device functionality and customize your
PSoC device. It is populated with an impressive selection of
content; from simple primitives such as logic gates and device
registers, through the digital timers, counters and PWMs, plus
analog components such as ADC, DACs, and filters, and
7.1.4.5 Nonintrusive Debugging
Figure 7-5. PSoC Creator Debugger
2
communication protocols, such as I C, USB, and CAN. See
Example Peripherals on page 35 for more details about available
peripherals. All content is fully characterized and carefully
documented in datasheets with code examples, AC/DC
specifications, and user code ready APIs.
7.1.4.3 Design Reuse
The symbol editor gives you the ability to develop reusable
components that can significantly reduce future design time. Just
draw a symbol and associate that symbol with your proven
design. PSoC Creator allows for the placement of the new
symbol anywhere in the component catalog along with the
content provided by Cypress. You can then reuse your content
as many times as you want, and in any number of projects,
without ever having to revisit the details of the implementation.
With JTAG (4-wire) and SWD (2-wire) debug connectivity
available on all devices, the PSoC Creator debugger offers full
control over the target device with minimum intrusion.
Breakpoints and code execution commands are all readily
available from toolbar buttons and an impressive lineup of
windows—register, locals, watch, call stack, memory and
peripherals—make for an unparalleled level of visibility into the
system.
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PSoC® 3: CY8C36 Family Datasheet
PSoC Creator contains all the tools necessary to complete a
Status and control module – The primary role of this block is to
provide a way for CPU firmware to interact and synchronize
with UDB operation.
design, and then to maintain and extend that design for years to
come. All steps of the design flow are carefully integrated and
optimized for ease-of-use and to maximize productivity.
Clock and reset module – This block provides the UDB clocks
and reset selection and control.
7.2 Universal Digital Block
The universal digital block (UDB) represents an evolutionary
step to the next generation of PSoC embedded digital peripheral
functionality. The architecture in first generation PSoC digital
blocks provides coarse programmability in which a few fixed
functions with a small number of options are available. The new
UDB architecture is the optimal balance between configuration
granularity and efficient implementation. A cornerstone of this
approach is to provide the ability to customize the devices digital
operation to match application requirements.
7.2.1 PLD Module
The primary purpose of the PLD blocks is to implement logic
expressions, state machines, sequencers, lookup tables, and
decoders. In the simplest use model, consider the PLD blocks as
a standalone resource onto which general purpose RTL is
synthesized and mapped. The more common and efficient use
model is to create digital functions from a combination of PLD
and datapath blocks, where the PLD implements only the
random logic and state portion of the function while the datapath
(ALU) implements the more structured elements.
To achieve this, UDBs consist of a combination of uncommitted
logic (PLD), structured logic (Datapath), and a flexible routing
scheme to provide interconnect between these elements, I/O
connections, and other peripherals. UDB functionality ranges
from simple self contained functions that are implemented in one
UDB, or even a portion of a UDB (unused resources are
available for other functions), to more complex functions that
require multiple UDBs. Examples of basic functions are timers,
counters, CRC generators, PWMs, dead band generators, and
Figure 7-7. PLD 12C4 Structure
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN9
IN10
IN11
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
T C T C T C T C T C T C T C T C
2
communications functions, such as UARTs, SPI, and I C. Also,
the PLD blocks and connectivity provide full featured general
purpose programmable logic within the limits of the available
resources.
AND
Array
Figure 7-6. UDB Block Diagram
PLD
Chaining
SELIN
(carry in)
PLD
12C4
PLD
12C4
Clock
and Reset
Control
(8 PTs)
(8 PTs)
OUT0
OUT1
OUT2
OUT3
MC0
MC1
MC2
MC3
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
Status and
Control
Datapath
Datapath
Chaining
SELOUT
(carry out)
OR
Array
One 12C4 PLD block is shown in Figure 7-7. This PLD has 12
inputs, which feed across eight product terms. Each product term
(AND function) can be from 1 to 12 inputs wide, and in a given
product term, the true (T) or complement (C) of each input can
be selected. The product terms are summed (OR function) to
create the PLD outputs. A sum can be from 1 to 8 product terms
wide. The 'C' in 12C4 indicates that the width of the OR gate (in
this case 8) is constant across all outputs (rather than variable
as in a 22V10 device). This PLA like structure gives maximum
flexibility and insures that all inputs and outputs are permutable
for ease of allocation by the software tools. There are two 12C4
PLDs in each UDB.
Routing Channel
The main component blocks of the UDB are:
PLD blocks – There are two small PLDs per UDB. Theseblocks
take inputs from the routing array and form registered or
combinational sum-of-products logic. PLDs are used to
implement state machines, state bits, and combinational logic
equations. PLD configuration is automatically generated from
graphical primitives.
Datapathmodule–This8-bitwidedatapathcontainsstructured
logic to implement a dynamically configurable ALU, a variety
ofcompare configurations andconditiongeneration. Thisblock
alsocontainsinput/outputFIFOs, whicharetheprimaryparallel
data interface between the CPU/DMA system and the UDB.
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7.2.2 Datapath Module
The datapath contains an 8-bit single cycle ALU, with associated compare and condition generation logic. This datapath block is
optimized to implement embedded functions, such as timers, counters, integrators, PWMs, PRS, CRC, shifters and dead band
generators and many others.
Figure 7-8. Datapath Top Level
PHUB System Bus
R/W Access to All
Registers
F1
FIFOs
Output
Muxes
Input
Muxes
F0
A0
A1
D0
D1
Input from
Programmable
Routing
Output to
Programmable
Routing
6
6
D1
Data Registers
D0
To/From
Previous
Datapath
To/From
Next
Datapath
Chaining
A1
Accumulators
A0
PI
Parallel Input/Output
(To/From Programmable Routing)
PO
ALU
Shift
Mask
7.2.2.1 Working Registers
7.2.2.2 Dynamic Datapath Configuration RAM
Dynamic configuration is the ability to change the datapath
function and internal configuration on a cycle-by-cycle basis,
under sequencer control. This is implemented using the
8-word × 16-bit configuration RAM, which stores eight unique
16-bit wide configurations. The address input to this RAM
controls the sequence, and can be routed from any block
connected to the UDB routing matrix, most typically PLD logic,
I/O pins, or from the outputs of this or other datapath blocks.
The datapath contains six primary working registers, which are
accessed by CPU firmware or DMA during normal operation.
Table 7-1. Working Datapath Registers
Name
Function
Description
A0 and A1 Accumulators
These are sources and sinks for
the ALU and also sources for the
compares.
ALU
D0 and D1 Data Registers These are sources for the ALU
and sources for the compares.
The ALU performs eight general purpose functions. They are:
Increment
Decrement
Add
F0 and F1 FIFOs
These are the primary interface
to the system bus. They can be a
data source for the data registers
and accumulators or they can
capture data from the
Subtract
Logical AND
Logical OR
Logical XOR
accumulatorsorALU. EachFIFO
is four bytes deep.
Pass, used to pass a value through the ALU to the shift register,
mask, or another UDB register
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Independent of the ALU operation, these functions are available:
7.2.2.8 Time Multiplexing
In applications that are over sampled, or do not need high clock
rates, the single ALU block in the datapath can be efficiently
shared with two sets of registers and condition generators. Carry
and shift out data from the ALU are registered and can be
selected as inputs in subsequent cycles. This provides support
for 16-bit functions in one (8-bit) datapath.
Shift left
Shift right
Nibble swap
Bitwise OR mask
7.2.2.9 Datapath I/O
7.2.2.3 Conditionals
There are six inputs and six outputs that connect the datapath to
the routing matrix. Inputs from the routing provide the
configuration for the datapath operation to perform in each cycle,
and the serial data inputs. Inputs can be routed from other UDB
blocks, other device peripherals, device I/O pins, and so on. The
outputs to the routing can be selected from the generated
conditions, and the serial data outputs. Outputs can be routed to
other UDB blocks, device peripherals, interrupt and DMA
controller, I/O pins, and so on.
Each datapath has two compares, with bit masking options.
Compare operands include the two accumulators and the two
data registers in a variety of configurations. Other conditions
include zero detect, all ones detect, and overflow. These
conditions are the primary datapath outputs, a selection of which
can be driven out to the UDB routing matrix. Conditional
computation can use the built in chaining to neighboring UDBs
to operate on wider data widths without the need to use routing
resources.
7.2.3 Status and Control Module
7.2.2.4 Variable MSB
The primary purpose of this circuitry is to coordinate CPU
firmware interaction with internal UDB operation.
The most significant bit of an arithmetic and shift function can be
programmatically specified. This supports variable width CRC
and PRS functions, and in conjunction with ALU output masking,
can implement arbitrary width timers, counters and shift blocks.
Figure 7-10. Status and Control Registers
System Bus
7.2.2.5 Built in CRC/PRS
The datapath has built in support for single cycle CRC
computation and PRS generation of arbitrary width and arbitrary
polynomial. CRC/PRS functions longer than 8 bits may be
implemented in conjunction with PLD logic, or built in chaining
may be use to extend the function into neighboring UDBs.
8-bit Status Register
(Read Only)
8-bit Control Register
(Write/Read)
Routing Channel
7.2.2.6 Input/Output FIFOs
Each datapath contains two four-byte deep FIFOs, which can be
independently configured as an input buffer (system bus writes
to the FIFO, datapath internal reads the FIFO), or an output
buffer (datapath internal writes to the FIFO, the system bus reads
from the FIFO). The FIFOs generate status that are selectable
as datapath outputs and can therefore be driven to the routing,
to interact with sequencers, interrupts, or DMA.
The bits of the control register, which may be written to by the
system bus, are used to drive into the routing matrix, and thus
provide firmware with the opportunity to control the state of UDB
processing. The status register is read-only and it allows internal
UDB state to be read out onto the system bus directly from
internal routing. This allows firmware to monitor the state of UDB
processing. Each bit of these registers has programmable
connections to the routing matrix and routing connections are
made depending on the requirements of the application.
Figure 7-9. Example FIFO Configurations
System Bus
System Bus
7.2.3.1 Usage Examples
F0
F0
F1
As an example of control input, a bit in the control register can
be allocated as a function enable bit. There are multiple ways to
enable a function. In one method the control bit output would be
routed to the clock control block in one or more UDBs and serve
as a clock enable for the selected UDB blocks. A status example
is a case where a PLD or datapath block generated a condition,
such as a “compare true” condition that is captured and latched
by the status register and then read (and cleared) by CPU
firmware.
D0/D1
D0
A0
D1
A1
A0/A1/ALU
A0/A1/ALU
F0
A0/A1/ALU
F1
F1
System Bus
System Bus
Dual Capture
TX/RX
Dual Buffer
7.2.3.2 Clock Generation
Each subcomponent block of a UDB including the two PLDs, the
datapath, and Status and Control, has a clock selection and
control block. This promotes a fine granularity with respect to
allocating clocking resources to UDB component blocks and
allows unused UDB resources to be used by other functions for
maximum system efficiency.
7.2.2.7 Chaining
The datapath can be configured to chain conditions and signals
such as carries and shift data with neighboring datapaths to
create higher precision arithmetic, shift, CRC/PRS functions.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 7-12. Function Mapping Example in a Bank of UDBs
7.3 UDB Array Description
Figure 7-11 shows an example of a 16-UDB array. In addition to
the array core, there are a DSI routing interfaces at the top and
bottom of the array. Other interfaces that are not explicitly shown
include the system interfaces for bus and clock distribution. The
UDB array includes multiple horizontal and vertical routing
channels each comprised of 96 wires. The wire connections to
UDBs, at horizontal/vertical intersection and at the DSI interface
are highly permutable providing efficient automatic routing in
PSoC Creator. Additionally the routing allows wire by wire
segmentation along the vertical and horizontal routing to further
increase routing flexibility and capability.
8-Bit
Timer
16-Bit
PWM
Quadrature Decoder
16-Bit PYRS
UDB
UDB
UDB
UDB
HV
A
HV
B
HV
A
HV
B
UDB
8-Bit
UDB
8-Bit SPI
UDB
UDB
Timer
Logic
Figure 7-11. Digital System Interface Structure
I2C Slave
UDB
12-Bit SPI
UDB
UDB
UDB
System Connections
HV
B
HV
A
HV
B
HV
A
HV
B
HV
A
HV
B
HV
A
Logic
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
HV
A
HV
B
HV
A
HV
B
UART
12-Bit PWM
UDB
UDB
UDB
UDB
UDB
UDB
UDB
UDB
7.4 DSI Routing Interface Description
The DSI routing interface is a continuation of the horizontal and
vertical routing channels at the top and bottom of the UDB array
core. It provides general purpose programmable routing
between device peripherals, including UDBs, I/Os, analog
peripherals, interrupts, DMA and fixed function peripherals.
HV
B
HV
A
HV
B
HV
A
Figure 7-13 illustrates the concept of the digital system
interconnect, which connects the UDB array routing matrix with
other device peripherals. Any digital core or fixed function
peripheral that needs programmable routing is connected to this
interface.
UDB
UDB
UDB
UDB
HV
A
HV
B
HV
A
HV
B
Signals in this category include:
System Connections
Interrupt requests from all digital peripherals in the system.
DMA requests from all digital peripherals in the system.
Digital peripheral data signals that need flexible routing to I/Os.
Digital peripheral data signals that need connections to UDBs.
Connections to the interrupt and DMA controllers.
Connection to I/O pins.
7.3.1 UDB Array Programmable Resources
Figure 7-12 shows an example of how functions are mapped into
a bank of 16 UDBs. The primary programmable resources of the
UDB are two PLDs, one datapath and one status/control register.
These resources are allocated independently, because they
have independently selectable clocks, and therefore unused
blocks are allocated to other unrelated functions.
Connection to analog system digital signals.
An example of this is the 8-bit Timer in the upper left corner of
the array. This function only requires one datapath in the UDB,
and therefore the PLD resources may be allocated to another
function. A function such as a Quadrature Decoder may require
more PLD logic than one UDB can supply and in this case can
utilize the unused PLD blocks in the 8-bit Timer UDB.
Programmable resources in the UDB array are generally
homogeneous so functions can be mapped to arbitrary
boundaries in the array.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 7-13. Digital System Interconnect
7.4.1 I/O Port Routing
There are a total of 20 DSI routes to a typical 8-bit I/O port, 16
for data and four for drive strength control.
Timer
Counters
Interrupt
Controller
DMA
Controller
IO Port
Pins
Global
Clocks
CAN
I2C
When an I/O pin is connected to the routing, there are two
primary connections available, an input and an output. In
conjunction with drive strength control, this can implement a
bidirectional I/O pin. A data output signal has the option to be
single synchronized (pipelined) and a data input signal has the
option to be double synchronized. The synchronization clock is
the system clock (see Figure 6-1 on page 22). Normally all inputs
from pins are synchronized as this is required if the CPU
interacts with the signal or any signal derived from it.
Asynchronous inputs have rare uses. An example of this is a
feed through of combinational PLD logic from input pins to output
pins.
Digital System Routing I/F
UDB ARRAY
Figure 7-15. I/O Pin Synchronization Routing
Digital System Routing I/F
DO
DI
Global
Clocks
IO Port
Pins
SC/CT
Blocks
EMIF
Del-Sig
DACs
Comparators
Figure 7-16. I/O Pin Output Connectivity
Interrupt and DMA routing is very flexible in the CY8C36
8 IO Data Output Connections from the
UDB Array Digital System Interface
programmable architecture. In addition to the numerous fixed
function peripherals that can generate interrupt requests, any
data signal in the UDB array routing can also be used to generate
a request. A single peripheral may generate multiple
independent interrupt requests simplifying system and firmware
design. Figure 7-14 shows the structure of the IDMUX
(Interrupt/DMA Multiplexer).
Figure 7-14. Interrupt and DMA Processing in the IDMUX
Interrupt and DMA Processing in IDMUX
Fixed Function IRQs
DO
PIN 0
DO
PIN1
DO
PIN2
DO
PIN3
DO
PIN4
DO
PIN5
DO
PIN6
DO
PIN7
0
1
Interrupt
Controller
IRQs
2
3
Port i
UDB Array
Edge
Detect
There are four more DSI connections to a given I/O port to
implement dynamic output enable control of pins. This
connectivity gives a range of options, from fully ganged 8-bits
controlled by one signal, to up to four individually controlled pins.
The output enable signal is useful for creating tri-state
bidirectional pins and buses.
DRQs
DMA termout (IRQs)
0
Fixed Function DRQs
DMA
Controller
1
2
Edge
Detect
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Figure 7-17. I/O Pin Output Enable Connectivity
7.5 CAN
The CAN peripheral is a fully functional CAN supporting
communication baud rates up to 1 Mbps. The CAN controller
implements the CAN2.0A and CAN2.0B specifications as
defined in the Bosch specification and conforms to the
ISO-11898-1 standard. The CAN protocol was originally
designed for automotive applications with a focus on a high level
of fault detection. This ensures high communication reliability at
a low cost. Because of its success in automotive applications,
CAN is used as a standard communication protocol for motion
oriented machine control networks (CANOpen) and factory
automation applications (DeviceNet). The CAN controller
features allow the efficient implementation of higher level
protocols without affecting the performance of the
4 IO Control Signal Connections from
UDB Array Digital System Interface
OE
OE
PIN1
OE
PIN2
OE
PIN3
OE
PIN4
OE
PIN5
OE
PIN6
OE
PIN7
PIN 0
microcontroller CPU. Full configuration support is provided in
PSoC Creator.
Port i
Figure 7-18. CAN Bus System Implementation
CAN Node 1
PSoC
CAN Node 2
CAN Node n
CAN
Drivers
CAN Controller
En
Tx Rx
CAN Transceiver
CAN_H
CAN_H
CAN_L
CAN_H
CAN_L
CAN_L
CAN Bus
7.5.1 CAN Features
CAN2.0A/B protocol implementation – ISO 11898 compliant
Standard and extended frames with up to 8 bytes of data per
frame
Message filter capabilities
Remote Transmission Request (RTR) support
Programmable bit rate up to 1 Mbps
Receive path
16 receive buffers each with its own message filter
Enhanced hardware message filter implementation that
covers the ID, IDE, and RTR
DeviceNet addressing support
Multiple receive buffers linkable to build a larger receive
message array
Automatic transmission request (RTR) response handler
Lost received message notification
Listen Only mode
SW readable error counter and indicator
Transmit path
Eight transmit buffers
Programmable transmit priority
• Round robin
• Fixed priority
Message transmissions abort capability
Sleep mode: Wake the device from sleep with activity on the
Rx pin
Supports two or three wire interface to external transceiver (Tx,
Rx, and Enable). The three-wire interface is compatible with
the Philips PHY; the PHY is not included on-chip. The three
wires can be routed to any I/O
7.5.2 Software Tools Support
Enhanced interrupt controller
CAN receive and transmit buffers status
CAN controller error status including BusOff
CAN Controller configuration integrated into PSoC Creator:
CAN Configuration walkthrough with bit timing analyzer
Receive filter setup
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 7-19. CAN Controller Block Diagram
TxMessage0
TxReq
TxAbort
TxMessage1
TxReq
TxAbort
Tx Buffer
Status
TxReq
Bit Timing
Pending
Priority
Arbiter
Tx
TxMessage6
TxReq
Tx
CAN
Framer
CRC
Generator
TxInterrupt
Request
TxAbort
(if enabled)
TxMessage7
TxReq
TxAbort
Error Status
Error Active
Error Passive
Bus Off
Tx Error Counter
Rx Error Counter
RTR RxMessages
0-15
Acceptance Code 0
RxMessage0
RxMessage1
Acceptance Mask 0
Acceptance Mask 1
Rx Buffer
Status
RxMessage
Available
Acceptance Code 1
Rx
Rx
RxMessage
Handler
CAN
Framer
CRC Check
RxMessage14
RxMessage15
Acceptance Code 14
Acceptance Code 15
Acceptance Mask 14
Acceptance Mask 15
RxInterrupt
Request
(if enabled)
WakeUp
Request
Error Detection
CRC
Form
ACK
ErrInterrupt
Request
Bit Stuffing
Bit Error
Overload
Arbitration
(if enabled)
Internal 48-MHz main oscillator mode that auto locks to USB
bus clock, requiring no external crystal for USB (USB equipped
parts only)
7.6 USB
PSoC includes a dedicated Full-Speed (12 Mbps) USB 2.0
transceiver supporting all four USB transfer types: control,
interrupt, bulk, and isochronous. PSoC Creator provides full
configuration support. USB interfaces to hosts through two
dedicated USBIO pins, which are detailed in the “I/O System and
Routing” section on page 28.
Interrupts on bus and each endpoint event, with device wakeup
USB reset, suspend, and resume operations
Bus-powered and self-powered modes
Figure 7-20. USB
USB includes the following features:
Eight unidirectional data endpoints
One bidirectional control endpoint 0 (EP0)
Shared 512-byte buffer for the eight data endpoints
Dedicated 8-byte buffer for EP0
512 X 8
Arbiter
SRAM
External 22 Ω
Resistors
D+
S I E
(Serial Interface
Engine)
Three memory modes
Manual Memory Management with No DMA Access
Manual Memory Management with Manual DMA Access
Automatic Memory Management with Automatic DMA
Access
USB
I/O
D–
Interrupts
48 MHz
IMO
Internal 3.3-V regulator for transceiver
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
2
7.7 Timers, Counters, and PWMs
7.8 I C
2
The Timer/Counter/PWM peripheral is a 16-bit dedicated
peripheral providing three of the most common embedded
peripheral features. As almost all embedded systems use some
combination of timers, counters, and PWMs. Four of them have
been included on this PSoC device family. Additional and more
advanced functionality timers, counters, and PWMs can also be
instantiated in Universal Digital Blocks (UDBs) as required.
PSoC Creator allows you to choose the timer, counter, and PWM
features that they require. The tool set utilizes the most optimal
resources available.
The I C peripheral provides a synchronous two wire interface
2
designed to interface the PSoC device with a two wire I C serial
communication bus. The bus is compliant with Philips ‘The I C
Specification’ version 2.1. Additional I C interfaces can be
instantiated using Universal Digital Blocks (UDBs) in PSoC
2
2
Creator, as required.
To eliminate the need for excessive CPU intervention and
overhead, I C specific support is provided for status detection
and generation of framing bits. I C operates as a slave, a master,
or multimaster (Slave and Master). In slave mode, the unit
always listens for a start condition to begin sending or receiving
data. Master mode supplies the ability to generate the Start and
Stop conditions and initiate transactions. Multimaster mode
provides clock synchronization and arbitration to allow multiple
masters on the same bus. If Master mode is enabled and Slave
mode is not enabled, the block does not generate interrupts on
2
2
The Timer/Counter/PWM peripheral can select from multiple
clock sources, with input and output signals connected through
the DSI routing. DSI routing allows input and output connections
to any device pin and any internal digital signal accessible
through the DSI. Each of the four instances has a compare
output, terminal count output (optional complementary compare
output), and programmable interrupt request line. The
2
externally generated Start conditions. I C interfaces through the
Timer/Counter/PWMs are configurable as freerunning, one shot,
or Enable input controlled. The peripheral has timer reset and
capture inputs, and a kill input for control of the comparator
outputs. The peripheral supports full 16-bit capture.
DSI routing and allows direct connections to any GPIO or SIO
pins.
2
I C provides hardware address detect of a 7-bit address without
CPU intervention. Additionally the device can wake from
low-power modes on a 7-bit hardware address match. If wakeup
functionality is required, I C pin connections are limited to the
two special sets of SIO pins.
Timer/Counter/PWM features include:
16-bit Timer/Counter/PWM (down count only)
Selectable clock source
2
2
I C features include:
PWM comparator (configurable for LT, LTE, EQ, GTE, GT)
Period reload on start, reset, and terminal count
Interrupt on terminal count, compare true, or capture
Dynamic counter reads
Slave and master, transmitter, and receiver operation
Byte processing for low CPU overhead
Interrupt or polling CPU interface
Support for bus speeds up to 1 Mbps (3.4 Mbps in UDBs)
Timer capture mode
7 or 10-bit addressing (10-bit addressing requires firmware
support)
Count while enable signal is asserted mode
Free run mode
SMBus operation (through firmware support – SMBus
supported in hardware in UDBs)
One Shot mode (stop at end of period)
Complementary PWM outputs with deadband
PWM output kill
7-bit hardware address compare
Wake from low-power modes on address match
7.9 Digital Filter Block
Figure 7-21. Timer/Counter/PWM
Some devices in the CY8C36 family of devices have a dedicated
HW accelerator block used for digital filtering. The DFB has a
dedicated multiplier and accumulator that calculates a 24-bit by
24-bit multiply accumulate in one system clock cycle. This
enables the mapping of a direct form FIR filter that approaches
a computation rate of one FIR tap for each clock cycle. The MCU
can implement any of the functions performed by this block, but
at a slower rate that consumes MCU bandwidth.
Clock
Reset
Enable
Capture
Kill
IRQ
Timer / Counter /
PWM 16-bit
TC / Compare!
Compare
The PSoC Creator interface provides a wizard to implement FIR
and IIR digital filters with coefficients for LPF, BPF, HPF, Notch
and arbitrary shape filters. 64 pairs of data and coefficients are
stored. This enables a 64 tap FIR filter or up to 4 16 tap filters of
either FIR or IIR formulation.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 7-22. DFB Application Diagram (pwr/gnd not shown)
8. Analog Subsystem
The analog programmable system creates application specific
combinations of both standard and advanced analog signal
processing blocks. These blocks are then interconnected to
each other and also to any pin on the device, providing a high
level of design flexibility and IP security. The features of the
analog subsystem are outlined here to provide an overview of
capabilities and architecture.
BUSCLK
read_data
write_data
Data
Source
(PHUB)
System
Bus
addr
Digital
Routing
Digital Filter
Block
Data
Dest
(PHUB)
Flexible, configurable analog routing architecture provided by
analog globals, analog mux bus, and analog local buses.
DMA
Request
High resolution Delta-Sigma ADC.
DMA
CTRL
Up to four 8-bit DACs that provide either voltage or current
output.
Fourcomparatorswithoptional connectiontoconfigurableLUT
outputs.
The typical use model is for data to be supplied to the DFB over
the system bus from another on-chip system data source such
as an ADC. The data typically passes through main memory or
is directly transferred from another chip resource through DMA.
The DFB processes this data and passes the result to another
on chip resource such as a DAC or main memory through DMA
on the system bus.
Up to four configurable switched capacitor/continuous time
(SC/CT) blocks for functions that include opamp, unity gain
buffer, programmablegainamplifier, transimpedanceamplifier,
and mixer.
Up to four opamps for internal use and connection to GPIO that
can be used as high current output buffers.
Data movement in or out of the DFB is typically controlled by the
system DMA controller but can be moved directly by the MCU.
CapSense subsystem to enable capacitive touch sensing.
Precision reference for generating an accurate analog voltage
for internal analog blocks.
Figure 8-1. Analog Subsystem Block Diagram
DAC
DAC
DAC
Precision
Reference
A
N
A
L
O
G
A
N
A
L
O
G
DAC
SC/CT Block
SC/CT Block
SC/CT Block
SC/CT Block
GPIO
Port
GPIO
Port
R
O
U
T
I
R
O
U
T
I
Comparators
CMP CMP
N
G
N
G
CMP
CMP
CapSense Subsystem
Config&
Status
Registers
Analog
Interface
PHUB
CPU
DSI
Array
Clock
Distribution
Decimator
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
The PSoC Creator software program provides a user friendly
8.1.2 Functional Description
interface to configure the analog connections between the GPIO
and various analog resources and connections from one analog
resource to another. PSoC Creator also provides component
libraries that allow you to configure the various analog blocks to
perform application specific functions (PGA, transimpedance
amplifier, voltage DAC, current DAC, and so on). The tool also
generates API interface libraries that allow you to write firmware
that allows the communication between the analog peripheral
and CPU/Memory.
Analog globals (AGs) and analog mux buses (AMUXBUS)
provide analog connectivity between GPIOs and the various
analog blocks. There are 16 AGs in the CY8C36 family. The
analog routing architecture is divided into four quadrants as
shown in Figure 8-2. Each quadrant has four analog globals
(AGL[0..3], AGL[4..7], AGR[0..3], AGR[4..7]). Each GPIO is
connected to the corresponding AG through an analog switch.
The analog mux bus is a shared routing resource that connects
to every GPIO through an analog switch. There are two
AMUXBUS routes in CY8C36, one in the left half (AMUXBUSL)
and one in the right half (AMUXBUSR), as shown in Figure 8-2.
8.1 Analog Routing
The CY8C36 family of devices has a flexible analog routing
architecture that provides the capability to connect GPIOs and
different analog blocks, and also route signals between different
analog blocks. One of the strong points of this flexible routing
architecture is that it allows dynamic routing of input and output
connections to the different analog blocks.
8.1.1 Features
Flexible, configurable analog routing architecture
16 analog globals (AG) and two analog mux buses
(AMUXBUS) to connect GPIOs and the analog blocks
Each GPIO is connected to one analog global and one analog
mux bus
Eight analog local buses (abus) to route signals between the
different analog blocks
Multiplexers and switches for input and output selection of the
analog blocks
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 8-2. CY8C36 Analog Interconnect
*
*
*
*
*
swinp
*
*
*
*
*
*
*
swinn
*
*
AMUXBUSR
AMUXBUSL
AGL[4]
AGL[5]
AGL[6]
AGL[7]
AGR[4]
AGR[5]
AGR[6]
AGR[7]
ExVrefL
ExVrefL1
ExVrefL2
44
swinp
swinn
GPIO
P3[5]
GPIO
P3[4]
GPIO
P3[3]
GPIO
P3[2]
GPIO
P3[1]
GPIO
P3[0]
GPXT
opamp1
swfol
opamp3
swfol
opamp0
swfol
opamp2
swfol
swinp
swinn
0123
3210
76543210
01234567
GPIO
P0[4]
GPIO
P0[5]
GPIO
P0[6]
GPIO
swinp
swinn
LPF
swout
swout
in0
in1
abuf_vref_int
(1.024V)
abuf_vref_int
(1.024V)
i0
i2
*
5
ExVrefR
swin
swin
out0
out1
comp0
comp1
+
-
+
-
*
P0[7]
i3
i1
COMPARATOR
cmp0_vref
(1.024V)
cmp0_vref
(1.024V)
+
-
+
-
GPIO
P4[2]
GPIO
P4[3]
GPIO
cmp_muxvn[1:0]
vref_cmp1
bg_v(d0a._2re5s6_Ven)
comp2
90 comp3
cmp1_vref
*
P15[1]
GPXT
P15[0]
bg_vda_swabusl0
Vdda
Vdda/2
out
ref
in
out
ref
in
refbuf_vref1 (1.024V)
CAPSENSE
refbufl
refbuf_vref1 (1.024V)
refbuf_vref2 (1.2V)
*
refbuf_vref2 (1.2V)
refbufr
refsel[1:0]
refsel[1:0]
P4[4]
GPIO
P4[5]
GPIO
P4[6]
GPIO
P4[7]
vssa
Vssa
sc0
Vin
Vref
out
sc1
Vin
Vref
sc2_bgref
(1.024V)
sc0_bgref
(1.024V)
*
out
sc1_bgref
(1.024V)
sc3_bgref
(1.024V)
Vccd
SC/CT
Vin
Vref
out
sc2
Vin
Vref
out
sc3
*
Vssd
*
104
*
Vccd
Vddd
*
Vssd
ABUSL0
ABUSL1
ABUSL2
ABUSL3
ABUSR0
ABUSR1
ABUSR2
ABUSR3
*
Vddd
GPIO
P6[0]
GPIO
v0
i0
v1
DAC1
i1
USB IO
DAC0
*
P15[7]
VIDAC
USB IO
v2
i2
36
v3
DAC3
i3
*
DAC2
P15[6]
GPIO
P6[1]
GPIO
P6[2]
GPIO
P6[3]
GPIO
P15[4]
GPIO
P15[5]
GPIO
P2[0]
GPIO
P2[1]
GPIO
P2[2]
GPIO
dac_vref (0.256V)
P5[7]
GPIO
P5[6]
GPIO
P5[5]
GPIO
P5[4]
SIO
P12[7]
SIO
P12[6]
GPIO
vcmsel[1:0]
en_resvpwra
+
DSM0
vpwra
vpwra/2
dsm0_vcm_vref1
(0.8V)
DSM
refs
-
vssa
28
vcm
qtz_ref
vref_vss_ext
dsm0_vcm_vref2 (0.7V)
dsm0_qtz_vref2 (1.2V)
dsm0_qtz_vref1 (1.024V)
Vdda
Vdda/4
ExVrefL
ExVrefR
refmux[2:0]
en_resvda
*
P1[7]
GPIO
AMUXBUSL
AMUXBUSR
76543210
0123
ANALOG
BUS
*
P1[6]
01234567
3210
ANALOG
ANALOG ANALOG
BUS GLOBALS
*
P2[3]
GPIO
P2[4]
GLOBALS
*
VBE
TS
ADC
*
:
Vss ref
Vddio2
LPF
AGR[3]
AGR[2]
AGL[3]
AGL[2]
AGR[1]
AGL[1]
AGR[0]
AGL[0]
AMUXBUSR
AMUXBUSL
*
*
*
*
*
13
Mux Group
*
*
*
Switch Group
Connection
*
*
*
*
*
Switch Resistance
Notes:
Small ( ~870 Ohms )
Large ( ~200 Ohms)
* Denotes pins on all packages
LCD signals are not shown.
Rev #51
2-April-2010
Document Number: 001-53413 Rev. *I
Page 48 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Analog local buses (abus) are routing resources located within
through the input buffer. The delta-sigma modulator performs the
actual analog to digital conversion. The modulator over-samples
the input and generates a serial data stream output. This high
speed data stream is not useful for most applications without
some type of post processing, and so is passed to the decimator
through the Analog Interface block. The decimator converts the
high speed serial data stream into parallel ADC results. The
the analog subsystem and are used to route signals between
different analog blocks. There are eight abus routes in CY8C36,
four in the left half (abusl [0:3]) and four in the right half (abusr
[0:3]) as shown in Figure 8-2. Using the abus saves the analog
globals and analog mux buses from being used for
interconnecting the analog blocks.
4
modulator/decimator frequency response is [(sin x)/x] ; a typical
frequency response is shown in Figure 8-5.
Multiplexers and switches exist on the various buses to direct
signals into and out of the analog blocks. A multiplexer can have
only one connection on at a time, whereas a switch can have
multiple connections on simultaneously. In Figure 8-2,
multiplexers are indicated by grayed ovals and switches are
indicated by transparent ovals.
Figure 8-4. Delta-sigma ADC Block Diagram
Positive
Input Mux
Delta
Sigma
Modulator
Input
Buffer
12 to 20 Bit
Result
8.2 Delta-sigma ADC
Decimator
SOC
(Analog Routing)
Negative
EOC
The CY8C36 device contains one delta-sigma ADC. This ADC
offers differential input, high resolution and excellent linearity,
making it a good ADC choice for measurement applications. The
converter can be configured to output 12-bit resolution at data
rates of up to 192 ksps. At a fixed clock rate, resolution can be
traded for faster data rates as shown in Table 8-1 and Figure 8-3.
Input Mux
Figure 8-5. Delta-sigma ADC Frequency Response,
Normalized to Output, Sample Rate = 48 kHz
Table 8-1. Delta-sigma ADC Performance
MaximumSampleRate
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Bits
SINAD (dB)
(sps)
192 k
384 k
12
8
66
43
Figure8-3. Delta-sigmaADCSampleRates, Range=±1.024 V
1,000,000
100,000
10,000
1,000
100
1,000
10,000
100,000
1,000,000
Input frequency,Hz
Resolution and sample rate are controlled by the Decimator.
Data is pipelined in the decimator; the output is a function of the
last four samples. When the input multiplexer is switched, the
output data is not valid until after the fourth sample after the
switch.
8.2.2 Operational Modes
Continuous
Multi-Sample
The ADC can be configured by the user to operate in one of four
modes: Single Sample, Multi Sample, Continous, or Multi
Sample (Turbo). All four modes are started by either a write to
the start bit in a control register or an assertion of the Start of
Conversion (SoC) signal. When the conversion is complete, a
status bit is set and the output signal End of Conversion (EoC)
asserts high and remains high until the value is read by either the
DMA controller or the CPU.
100
7
8
9
10
11
12
13
Resolution, bits
8.2.1 Functional Description
8.2.2.1 Single Sample
The ADC connects and configures three basic components,
input buffer, delta-sigma modulator, and decimator. The basic
block diagram is shown in Figure 8-4. The signal from the input
muxes is delivered to the delta-sigma modulator either directly or
In Single Sample mode, the ADC performs one sample
conversion on a trigger. In this mode, the ADC stays in standby
state waiting for the SoC signal to be asserted. When SoC is
signaled the ADC performs four successive conversions. The
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
first three conversions prime the decimator. The ADC result is
valid and available after the fourth conversion, at which time the
EoC signal is generated. To detect the end of conversion, the
system may poll a control register for status or configure the
external EoC signal to generate an interrupt or invoke a DMA
request. When the transfer is done the ADC reenters the standby
hardware. This signal is optional and does not need to be
connected if ADC is running in a continuous mode.
8.2.4 End of Conversion Output
The EoC signal goes high at the end of each ADC conversion.
This signal may be used to trigger either an interrupt or DMA
request.
state where it stays until another SoC event.
8.2.2.2 Continuous
8.3 Comparators
Continuous sample mode is used to take multiple successive
samples of a single input signal. Multiplexing multiple inputs
should not be done with this mode. There is a latency of three
conversion times before the first conversion result is available.
This is the time required to prime the decimator. After the first
result, successive conversions are available at the selected
sample rate.
The CY8C36 family of devices contains four comparators in a
device. Comparators have these features:
Input offset factory trimmed to less than 5 mV
Rail-to-rail common mode input range (V
to V
)
SSA
DDA
Speed and power can be traded off by using one of three
modes: fast, slow, or ultra low-power
8.2.2.3 Multi Sample
Comparator outputs can be routed to lookup tables to perform
simple logic functions and then can also be routed to digital
blocks
Multi sample mode is similar to continuous mode except that the
ADC is reset between samples. This mode is useful when the
input is switched between multiple signals. The decimator is
re-primed between each sample so that previous samples do not
affect the current conversion. Upon completion of a sample, the
next sample is automatically initiated. The results can be
transferred using either firmware polling, interrupt, or DMA.
The positive input ofthe comparators may be optionally passed
through a low pass filter. Two filters are provided
Comparator inputs can be connections to GPIO, DAC outputs
and SC block outputs
More information on output formats is provided in the Technical
Reference Manual.
8.3.1 Input and Output Interface
The positive and negative inputs to the comparators come from
the analog global buses, the analog mux line, the analog local
bus and precision reference through multiplexers. The output
from each comparator could be routed to any of the two input
LUTs. The output of that LUT is routed to the UDB Digital System
Interface.
8.2.3 Start of Conversion Input
The SoC signal is used to start an ADC conversion. A digital
clock or UDB output can be used to drive this input. It can be
used when the sampling period must be longer than the ADC
conversion time or when the ADC must be synchronized to other
Figure 8-6. Analog Comparator
ANAIF
From
Analog
Routing
+
comp0
_
+
_
From
Analog
Routing
comp1
From
Analog
Routing
+
comp3
_
+
From
Analog
Routing
comp2
_
4
4
4
4
4
4
4
4
LUT0
LUT1
LUT2
LUT3
UDBs
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
8.3.2 LUT
Figure 8-8. Opamp Configurations
The CY8C36 family of devices contains four LUTs. The LUT is a
two input, one output lookup table that is driven by any one or
two of the comparators in the chip. The output of any LUT is
routed to the digital system interface of the UDB array. From the
digital system interface of the UDB array, these signals can be
connected to UDBs, DMA controller, I/O, or the interrupt
controller.
a) Voltage Follower
Vout to Pin
Opamp
Vin
The LUT control word written to a register sets the logic function
on the output. The available LUT functions and the associated
control word is shown in Table 8-2.
b) External Uncommitted
Opamp
Table 8-2. LUT Function vs. Program Word and Inputs
Control Word
0000b
0001b
0010b
0011b
0100b
0101b
0110b
0111b
Output (A and B are LUT inputs)
FALSE (‘0’)
A AND B
Vout to GPIO
Opamp
A AND (NOT B)
A
(NOT A) AND B
B
Vp to GPIO
Vn to GPIO
A XOR B
A OR B
c) Internal Uncommitted
Opamp
1000b
1001b
1010b
1011b
1100b
1101b
1110b
A NOR B
A XNOR B
NOT B
Vn
A OR (NOT B)
NOT A
To Internal Signals
Vout to Pin
GPIO Pin
Opamp
(NOT A) OR B
A NAND B
TRUE (‘1’)
Vp
1111b
8.4 Opamps
The opamp has three speed modes, slow, medium, and fast. The
slow mode consumes the least amount of quiescent power and
the fast mode consumes the most power. The inputs are able to
swing rail-to-rail. The output swing is capable of rail-to-rail
operation at low current output, within 50 mV of the rails. When
driving high current loads (about 25 mA) the output voltage may
only get within 500 mV of the rails.
The CY8C36 family of devices contain up to four general
purpose opamps in a device.
Figure 8-7. Opamp
GPIO
8.5 Programmable SC/CT Blocks
Analog
Global Bus
The CY8C36 family of devices contains up to four switched
capacitor/continuous time (SC/CT) blocks in a device. Each
switched capacitor/continuous time block is built around a single
rail-to-rail high bandwidth opamp.
Opamp
Analog
Global Bus
GPIO
VREF
Analog
Internal Bus
Switched capacitor is a circuit design technique that uses
capacitors plus switches instead of resistors to create analog
functions. These circuits work by moving charge between
capacitors by opening and closing different switches.
Nonoverlapping in phase clock signals control the switches, so
that not all switches are ON simultaneously.
=
Analog Switch
GPIO
The opamp is uncommitted and can be configured as a gain
stage or voltage follower, or output buffer on external or internal
signals.
The PSoC Creator tool offers a user friendly interface, which
allows you to easily program the SC/CT blocks. Switch control
and clock phase control configuration is done by PSoC Creator
so users only need to determine the application use parameters
See Figure 8-8. In any configuration, the input and output signals
can all be connected to the internal global signals and monitored
with an ADC, or comparator. The configurations are
such as gain, amplifier polarity, V
connection, and so on.
REF
implemented with switches between the signals and GPIO pins.
Document Number: 001-53413 Rev. *I
Page 51 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
The same opamps and block interfaces are also connectable to
an array of resistors which allows the construction of a variety of
continuous time functions.
The PGA is used in applications where the input signal may not
be large enough to achieve the desired resolution in the ADC, or
dynamic range of another SC/CT block such as a mixer. The gain
is adjustable at runtime, including changing the gain of the PGA
prior to each ADC sample.
The opamp and resistor array is programmable to perform
various analog functions including
Naked operational amplifier – Continuous mode
Unity-gain buffer – Continuous mode
8.5.4 TIA
The Transimpedance Amplifier (TIA) converts an internal or
external current to an output voltage. The TIA uses an internal
feedback resistor in a continuous time configuration to convert
input current to output voltage. For an input current Iin, the output
Programmable gain amplifier (PGA) – Continuous mode
Transimpedance amplifier (TIA) – Continuous mode
Up/down mixer – Continuous mode
voltage is Iin × Rfb +V
, where V
is the value placed on the
REF
REF
Sample and hold mixer (NRZ S/H) – Switched cap mode
First order analog to digital modulator – Switched cap mode
8.5.1 Naked Opamp
non inverting input. The feedback resistor Rfb is programmable
between 20 KΩ and 1 MΩ through a configuration register.
Table 8-4 shows the possible values of Rfb and associated
configuration settings.
The Naked Opamp presents both inputs and the output for
connection to internal or external signals. The opamp has a unity
gain bandwidth greater than 6.0 MHz and output drive current up
to 650 µA. This is sufficient for buffering internal signals (such as
DAC outputs) and driving external loads greater than 7.5 kΩ.
Table 8-4. Feedback Resistor Settings
Configuration Word
Nominal Rfb (KΩ)
000b
001b
010b
011b
100b
101b
110b
111b
20
30
8.5.2 Unity Gain
40
The Unity Gain buffer is a Naked Opamp with the output directly
connected to the inverting input for a gain of 1.00. It has a –3 dB
bandwidth greater than 6.0 MHz.
60
120
250
500
1000
8.5.3 PGA
The PGA amplifies an external or internal signal. The PGA can
be configured to operate in inverting mode or noninverting mode.
The PGA function may be configured for both positive and
negative gains as high as 50 and 49 respectively. The gain is
adjusted by changing the values of R1 and R2 as illustrated in
Figure 8-9 on page 52. The schematic in Figure 8-9 on page 52
shows the configuration and possible resistor settings for the
PGA. The gain is switched from inverting and non inverting by
changing the shared select value of the both the input muxes.
The bandwidth for each gain case is listed in Table 8-3.
Figure 8-10. Continuous Time TIA Schematic
R
fb
I
in
Table 8-3. Bandwidth
V
out
V
ref
Gain
1
Bandwidth
6.0 MHz
340 kHz
220 kHz
215 kHz
24
48
50
The TIA configuration is used for applications where an external
sensor's output is current as a function of some type of stimulus
such as temperature, light, magnetic flux etc. In a common
application, the voltage DAC output can be connected to the
Figure 8-9. PGA Resistor Settings
V
TIA input to allow calibration of the external sensor bias
REF
current by adjusting the voltage DAC output voltage.
R1
R2
Vin
0
1
8.6 LCD Direct Drive
The PSoC Liquid Crystal Display (LCD) driver system is a highly
configurable peripheral designed to allow PSoC to directly drive
a broad range of LCD glass. All voltages are generated on chip,
eliminating the need for external components. With a high
multiplex ratio of up to 1/16, the CY8C36 family LCD driver
system can drive a maximum of 736 segments. The PSoC LCD
driver module was also designed with the conservative power
budget of portable devices in mind, enabling different LCD drive
modes and power down modes to conserve power.
Vref
20 k or 40 k
20 k to 980 k
S
Vref
Vin
0
1
Document Number: 001-53413 Rev. *I
Page 52 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
PSoC Creator provides an LCD segment drive component. The
8.6.2 Display Data Flow
component wizard provides easy and flexible configuration of
LCD resources. You can specify pins for segments and
commons along with other options. The software configures the
device to meet the required specifications. This is possible
because of the programmability inherent to PSoC devices.
The LCD segment driver system reads display data and
generates the proper output voltages to the LCD glass to
produce the desired image. Display data resides in a memory
buffer in the system SRAM. Each time you need to change the
common and segment driver voltages, the next set of pixel data
moves from the memory buffer into the Port Data Registers
through DMA.
Key features of the PSoC LCD segment system are:
LCD panel direct driving
8.6.3 UDB and LCD Segment Control
Type A (standard) and Type B (low-power) waveform support
A UDB is configured to generate the global LCD control signals
and clocking. This set of signals is routed to each LCD pin driver
through a set of dedicated LCD global routing channels. In
addition to generating the global LCD control signals, the UDB
also produces a DMA request to initiate the transfer of the next
frame of LCD data.
Wide operating voltage range support (2 V to 5 V) for LCD
panels
Static, 1/2, 1/3, 1/4, 1/5 bias voltage levels
Internal biasvoltage generationthrough internal resistorladder
Up to 62 total common and segment outputs
8.6.4 LCD DAC
Up to 1/16 multiplex for a maximum of 16 backplane/common
outputs
The LCD DAC generates the contrast control and bias voltage
for the LCD system. The LCD DAC produces up to five LCD drive
voltages plus ground, based on the selected bias ratio. The bias
voltages are driven out to GPIO pins on a dedicated LCD bias
bus, as required.
Up to 62 front plane/segment outputs for direct drive
Drives upto 736 total segments (16 backplane× 46 front plane)
Up to 64 levels of software controlled contrast
8.7 CapSense
Ability to move display data from memory buffer to LCD driver
through DMA (without CPU intervention)
The CapSense system provides a versatile and efficient means
for measuring capacitance in applications such as touch sense
buttons, sliders, proximity detection, etc. The CapSense system
uses a configuration of system resources, including a few
hardware functions primarily targeted for CapSense. Specific
resource usage is detailed in the CapSense component in PSoC
Creator.
Adjustable LCD refresh rate from 10 Hz to 150 Hz
Ability to invert LCD display for negative image
Three LCD driver drive modes, allowing power optimization
Figure 8-11. LCD System
A capacitive sensing method using a Delta-Sigma Modulator
(CSD) is used. It provides capacitance sensing using a switched
capacitor technique with a delta-sigma modulator to convert the
sensing current to a digital code.
LCD
Global
DAC
Clock
8.8 Temp Sensor
Die temperature is used to establish programming parameters
for writing flash. Die temperature is measured using a dedicated
sensor based on a forward biased transistor. The temperature
sensor has its own auxiliary ADC.
UDB
PIN
LCD Driver
Block
Display
DMA
RAM
8.9 DAC
The CY8C36 parts contain up to four Digital to Analog
Convertors (DACs). Each DAC is 8-bit and can be configured for
either voltage or current output. The DACs support CapSense,
power supply regulation, and waveform generation. Each DAC
has the following features:
PHUB
Adjustable voltage or current output in 255 steps
Programmable step size (range selection)
Eight bits of calibration to correct ± 25% of gain error
Source and sink option for current output
8 Msps conversion rate for current output
1 Msps conversion rate for voltage output
Monotonic in nature
8.6.1 LCD Segment Pin Driver
Each GPIO pin contains an LCD driver circuit. The LCD driver
buffers the appropriate output of the LCD DAC to directly drive
the glass of the LCD. A register setting determines whether the
pin is a common or segment. The pin’s LCD driver then selects
one of the six bias voltages to drive the I/O pin, as appropriate
for the display data.
Data and strobe inputs can be provided by the CPU or DMA,
or routed directly from the DSI
Dedicated low-resistance output pin for high-current mode
Document Number: 001-53413 Rev. *I
Page 53 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Figure 8-12. DAC Block Diagram
I source Range
1x,8x, 64x
Vout
Reference
Source
Scaler
Iout
R
3R
I sink Range
1x,8x, 64x
8.9.1 Current DAC
Figure 8-13. Mixer Configuration
The current DAC (IDAC) can be configured for the ranges 0 to
32 µA, 0 to 256 µA, and 0 to 2.048 mA. The IDAC can be
configured to source or sink current.
C2 = 1.7 pF
C1 = 850 fF
8.9.2 Voltage DAC
Rmix 0 20 k or 40 k
For the voltage DAC (VDAC), the current DAC output is routed
through resistors. The two ranges available for the VDAC are 0
to 1.024 V and 0 to 4.096 V. In voltage mode any load connected
to the output of a DAC should be purely capacitive (the output of
the VDAC is not buffered).
sc_clk
Rmix 0 20 k or 40 k
Vin
Vout
0
1
8.10 Up/Down Mixer
Vref
In continuous time mode, the SC/CT block components are used
to build an up or down mixer. Any mixing application contains an
input signal frequency and a local oscillator frequency. The
polarity of the clock, Fclk, switches the amplifier between
inverting or noninverting gain. The output is the product of the
input and the switching function from the local oscillator, with
frequency components at the local oscillator plus and minus the
signal frequency (Fclk + Fin and Fclk – Fin) and reduced-level
frequency components at odd integer multiples of the local
oscillator frequency. The local oscillator frequency is provided by
the selected clock source for the mixer.
sc_clk
8.11 Sample and Hold
The main application for a sample and hold, is to hold a value
stable while an ADC is performing a conversion. Some
applications require multiple signals to be sampled
simultaneously, such as for power calculations (V and I).
Figure 8-14. Sample and Hold Topology
(Φ1 and Φ2 are opposite phases of a clock)
Continuous time up and down mixing works for applications with
input signals and local oscillator frequencies up to 1 MHz.
Φ1
Φ 2
Φ1
Φ2
C1
C2
V i
Vref
n
Vout
Φ 1
Φ2
Φ1
Φ2
Φ 1
Φ2
Φ 1
Φ2
V ref
V
ref
C3
C4
Document Number: 001-53413 Rev. *I
Page 54 of 112
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
8.11.1 Down Mixer
Device Security is enabled, PSoCs with Device Security enabled
may not be returned for failure analysis.
The SC/CT block can be used as a mixer to down convert an
input signal. This circuit is a high bandwidth passive sample
network that can sample input signals up to 14 MHz. This
sampled value is then held using the opamp with a maximum
clock rate of 4 MHz. The output frequency is at the difference
between the input frequency and the highest integer multiple of
the Local Oscillator that is less than the input.
Table 9-1. Debug Configurations
Debug and Trace Configuration
GPIO Pins Used
All debug and trace disabled
0
JTAG
4 or 5
SWD
2
1
3
8.11.2 First Order Modulator – SC Mode
SWV
A first order modulator is constructed by placing the SC/CT block
in an integrator mode and using a comparator to provide a 1-bit
feedback to the input. Depending on this bit, a reference voltage
is either subtracted or added to the input signal. The block output
is the output of the comparator and not the integrator in the
modulator case. The signal is downshifted and buffered and then
processed by a decimator to make a delta-sigma converter or a
counter to make an incremental converter. The accuracy of the
sampled data from the first-order modulator is determined from
several factors.
SWD + SWV
9.1 JTAG Interface
The IEEE 1149.1 compliant JTAG interface exists on four or five
pins (the nTRST pin is optional). The JTAG clock frequency can
be up to 8 MHz, or 1/3 of the CPU clock frequency for 8 and 16-bit
transfers, or 1/5 of the CPU clock frequency for 32-bit transfers,
whichever is least. By default, the JTAG pins are enabled on new
devices but the JTAG interface can be disabled, allowing these
pins to be used as General Purpose I/O (GPIO) instead. The
JTAG interface is used for programming the flash memory,
debugging, I/O scan chains, and JTAG device chaining.
The main application for this modulator is for a low frequency
ADC with high accuracy. Applications include strain gauges,
thermocouples, precision voltage, and current measurement.
9. Programming, Debug Interfaces,
Resources
9.2 Serial Wire Debug Interface
The SWD interface is the preferred alternative to the JTAG
interface. It requires only two pins instead of the four or five
needed by JTAG. SWD provides all of the programming and
debugging features of JTAG at the same speed. SWD does not
provide access to scan chains or device chaining. The SWD
clock frequency can be up to 1/3 of the CPU clock frequency.
PSoC devices include extensive support for programming,
testing, debugging, and tracing both hardware and firmware.
Three interfaces are available: JTAG, SWD, and SWV. JTAG and
SWD support all programming and debug features of the device.
JTAG also supports standard JTAG scan chains for board level
test and chaining multiple JTAG devices to a single JTAG
connection.
SWD uses two pins, either two of the JTAG pins (TMS and TCK)
or the USBIO D+ and D– pins. The USBIO pins are useful for in
system programming of USB solutions that would otherwise
require a separate programming connector. One pin is used for
the data clock and the other is used for data input and output.
SWD can be enabled on only one of the pin pairs at a time. This
only happens if, within 8 µs (key window) after reset, that pin pair
(JTAG or USB) receives a predetermined sequence of 1s and 0s.
SWD is used for debugging or for programming the flash
memory.
Complete Debug on Chip (DoC) functionality enables full device
debugging in the final system using the standard production
device. It does not require special interfaces, debugging pods,
simulators, or emulators. Only the standard programming
connections are required to fully support debug.
The PSoC Creator IDE software provides fully integrated
programming and debug support for PSoC devices. The low cost
MiniProg3 programmer and debugger is designed to provide full
programming and debug support of PSoC devices in conjunction
with the PSoC Creator IDE. PSoC JTAG, SWD, and SWV
interfaces are fully compatible with industry standard third party
tools.
The SWD interface can be enabled from the JTAG interface or
disabled, allowing its pins to be used as GPIO. Unlike JTAG, the
SWD interface can always be reacquired on any device during
the key window. It can then be used to reenable the JTAG
interface, if desired. When using SWD or JTAG pins as standard
GPIO, make sure that the GPIO functionality and PCB circuits do
not interfere with SWD or JTAG use.
All DOC circuits are disabled by default and can only be enabled
in firmware. If not enabled, the only way to reenable them is to
erase the entire device, clear flash protection, and reprogram the
device with new firmware that enables DOC. Disabling DOC
features, robust flash protection, and hiding custom analog and
digital functionality inside the PSoC device provide a level of
security not possible with multichip application solutions.
Additionally, all device interfaces can be permanently disabled
(Device Security) for applications concerned about phishing
attacks due to a maliciously reprogrammed device. Permanently
disabling interfaces is not recommended in most applications
because the you cannot access the device later. Because all
programming, debug, and test interfaces are disabled when
9.3 Debug Features
Using the JTAG or SWD interface, the CY8C36 supports the
following debug features:
Halt and single-step the CPU
View and change CPU and peripheral registers, and RAM
addresses
Eight program address breakpoints
Document Number: 001-53413 Rev. *I
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One memory access breakpoint—break on reading or writing
any memory address and data value
9.7 Device Security
PSoC 3 offers an advanced security feature called device
security, which permanently disables all test, programming, and
debug ports, protecting your application from external access.
The device security is activated by programming a 32-bit key
(0×50536F43) to a Write Once Latch (WOL).
Break on a sequence of breakpoints (non recursive)
Debugging at the full speed of the CPU
Debug operations are possible while the device is reset, or in
low-power modes
The Write Once Latch is a type of nonvolatile latch (NVL). The
cell itself is an NVL with additional logic wrapped around it. Each
WOL device contains four bytes (32 bits) of data. The wrapper
outputs a ‘1’ if a super-majority (28 of 32) of its bits match a
pre-determined pattern (0×50536F43); it outputs a ‘0’ if this
majority is not reached. When the output is 1, the Write Once NV
latch locks the part out of Debug and Test modes; it also
permanently gates off the ability to erase or alter the contents of
the latch. Matching all bits is intentionally not required, so that
single (or few) bit failures do not deassert the WOL output. The
state of the NVL bits after wafer processing is truly random with
no tendency toward 1 or 0.
CompatiblewithPSoCCreatorandMiniProg3programmerand
debugger
Standard JTAG programming and debugging interfaces make
CY8C36 compatible with other popular third-party tools (for
example, ARM / Keil)
9.4 Trace Features
The CY8C36 supports the following trace features when using
JTAG or SWD:
Trace the 8051 program counter (PC), accumulator register
(ACC), and one SFR / 8051 core RAM register
The WOL only locks the part after the correct 32-bit key
(0×50536F43) is loaded into the NVL's volatile memory,
programmed into the NVL's nonvolatile cells, and the part is
reset. The output of the WOL is only sampled on reset and used
to disable the access. This precaution prevents anyone from
reading, erasing, or altering the contents of the internal memory.
Trace depth up to 1000 instructions if all registers are traced,
or 2000 instructions if only the PC is traced (on devices that
include trace memory)
Program address trigger to start tracing
The user can write the key into the WOL to lock out external
access only if no flash protection is set (see “Flash Security” on
page 18). However, after setting the values in the WOL, a user
still has access to the part until it is reset. Therefore, a user can
write the key into the WOL, program the flash protection data,
and then reset the part to lock it.
Trace windowing, that is, only trace when the PC is within a
given range
Two modes for handling trace buffer full: continuous (overwriting
the oldest trace data) or break when trace buffer is full
9.5 Single Wire Viewer Interface
If the device is protected with a WOL setting, Cypress cannot
perform failure analysis and, therefore, cannot accept RMAs
from customers. The WOL can be read out through the SWD port
to electrically identify protected parts. The user can write the key
in WOL to lock out external access only if no flash protection is
set. For more information on how to take full advantage of the
security features in PSoC see the PSoC 3 TRM.
The SWV interface is closely associated with SWD but can also
be used independently. SWV data is output on the JTAG
interface’s TDO pin. If using SWV, you must configure the device
for SWD, not JTAG. SWV is not supported with the JTAG
interface.
SWV is ideal for application debug where it is helpful for the
firmware to output data similar to 'printf' debugging on PCs. The
SWV is ideal for data monitoring, because it requires only a
single pin and can output data in standard UART format or
Manchester encoded format. For example, it can be used to tune
a PID control loop in which the output and graphing of the three
error terms greatly simplifies coefficient tuning.
Disclaimer
Note the following details of the flash code protection features on
Cypress devices.
Cypress products meet the specifications contained in their
particular Cypress datasheets. Cypress believes that its family of
products is one of the most secure families of its kind on the
market today, regardless of how they are used. There may be
methods, unknown to Cypress, that can breach the code
protection features. Any of these methods, to our knowledge,
would be dishonest and possibly illegal. Neither Cypress nor any
other semiconductor manufacturer can guarantee the security of
their code. Code protection does not mean that we are
guaranteeing the product as “unbreakable.”
The following features are supported in SWV:
32 virtual channels, each 32 bits long
Simple, efficient packing and serializing protocol
Supports standard UART format (N81)
9.6 Programming Features
Cypress is willing to work with the customer who is concerned
about the integrity of their code. Code protection is constantly
evolving. We at Cypress are committed to continuously
improving the code protection features of our products.
The JTAG and SWD interfaces provide full programming
support. The entire device can be erased, programmed, and
verified. You can increase flash protection levels to protect
firmware IP. Flash protection can only be reset after a full device
erase. Individual flash blocks can be erased, programmed, and
verified, if block security settings permit.
Document Number: 001-53413 Rev. *I
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Application Notes: PSoC application notes discuss a particular
application of PSoC in depth; examples include brushless DC
motor control and on-chip filtering. Application notes often
include example projects in addition to the application note
document.
10. Development Support
The CY8C36 family has a rich set of documentation,
development tools, and online resources to assist you during
your development process. Visit
psoc.cypress.com/getting-started to find out more.
TechnicalReferenceManual: The Technical Reference Manual
(TRM) contains all the technical detail you need to use a PSoC
device, including a complete description of all PSoC registers.
10.1 Documentation
A suite of documentation, supports the CY8C36 family to ensure
that you can find answers to your questions quickly. This section
contains a list of some of the key documents.
10.2 Online
In addition to print documentation, the Cypress PSoC forums
connect you with fellow PSoC users and experts in PSoC from
around the world, 24 hours a day, 7 days a week.
Software User Guide: A step-by-step guide for using PSoC
Creator. The software user guide shows you how the PSoC
Creator build process works in detail, how to use source control
with PSoC Creator, and much more.
10.3 Tools
With industry standard cores, programming, and debugging
interfaces, the CY8C36 family is part of a development tool
ecosystem. Visit us at www.cypress.com/go/psoccreator for the
latest information on the revolutionary, easy to use PSoC Creator
IDE, supported third party compilers, programmers, debuggers,
and development kits.
Component Datasheets: The flexibility of PSoC allows the
creation of new peripherals (components) long after the device
has gone into production. Component datasheets provide all of
the information needed to select and use a particular component,
including a functional description, API documentation, example
code, and AC/DC specifications.
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
11. Electrical Specifications
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted. The unique flexibility of the PSoC UDBs and analog blocks enable many functions to be implemented in PSoC
Creator components, see the component datasheets for full AC/DC specifications of individual functions. See the “Example
Peripherals” section on page 35 for further explanation of PSoC Creator components.
11.1 Absolute Maximum Ratings
Table 11-1. Absolute Maximum Ratings DC Specifications
Parameter
Description
Storage temperature
Conditions
Min
Typ
Max
Units
T
Higher storage temperatures
reduce NVL data retention time.
Recommended storage temper-
ature is +25 °C ±25 °C. Extended
duration storage temperatures
above 85 °C degrade reliability.
–55
25
100
°C
STG
V
V
Analog supply voltage relative to
–0.5
–0.5
–
–
6
6
V
V
DDA
V
SSA
Digital supply voltage relative to
DDD
V
SSD
V
V
V
V
I/O supply voltage relative to V
–0.5
–0.5
–0.5
–
–
–
–
6
V
V
V
V
DDIO
CCA
CCD
SSA
SSD
Direct analog core voltage input
Direct digital core voltage input
Analog ground voltage
1.95
1.95
V
V
– 0.5
V
+
SSD
SSD
0.5
[20]
V
V
DC input voltage on GPIO
DC input voltage on SIO
Includes signals sourced by V
and routed internal to the pin
– 0.5
–
V
+
V
GPIO
DDA
SSD
DDIO
0.5
Output disabled
Output enabled
V
V
– 0.5
– 0.5
–
–
–
–
–
–
–
–
–
7
6
V
V
SIO
SSD
SSD
V
V
Voltage at boost converter input
Boost converter supply
0.5
5.5
5.5
100
2
V
IND
V
– 0.5
V
BAT
SSD
Ivddio
Current per V
supply pin
–
mA
V
DDIO
Vextref
LU
ADC external reference inputs
Pins P0[3], P3[2]
–
[21]
Latch up current
–140
750
500
140
–
mA
V
ESD
ESD
Electrostatic discharge voltage
Electrostatic discharge voltage
Human body model
Charge device model
HBM
CDM
–
V
Note Usage above the absolute maximum conditions listed in Table 11-1 may cause permanent damage to the device. Exposure to
maximum conditions for extended periods of time may affect device reliability. When used below maximum conditions but above
normal operating conditions the device may not operate to specification.
Notes
20. The VDDIO supply voltage must be greater than the maximum analog voltage on the associated GPIO pins. Maximum analog voltage on GPIO pin ≤ VDDIO ≤ VDDA
21. Meets or exceeds JEDEC Spec EIA/JESD78 IC Latch-up Test.
.
Document Number: 001-53413 Rev. *I
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11.2 Device Level Specifications
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.2.1 Device Level Specifications
Table 11-2. DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
V
V
V
V
Analog supply voltage and input to Analog core regulator enabled
analog core regulator
1.8
–
5.5
V
DDA
DDA
DDD
DDD
Analog supply voltage, analog
regulator bypassed
Analog core regulator disabled
Digital core regulator enabled
Digital core regulator disabled
1.71
1.8
1.8
–
1.89
V
V
V
[22]
Digital supply voltage relative to
V
V
DDA
V
SSD
Digital supply voltage, digital
regulator bypassed
1.71
1.8
1.89
[23]
[22]
V
V
I/O supply voltage relative to V
1.71
1.71
–
V
V
DDIO
SSIO
DDA
Direct analog core voltage input
(Analog regulator bypass)
Analog core regulator disabled
Digital core regulator disabled
1.8
1.89
CCA
V
V
Direct digital core voltage input
(Digital regulator bypass)
1.71
0.5
1.8
–
1.89
5.5
V
V
CCD
Voltage supplied to boost converter
BAT
[24]
I
Active Mode, VDD = 1.71 V–5.5 V
DD
Bus clock off. Execute from CPU
instruction buffer. See “Flash
Program Memory” on page 18.
CPU at 3 MHz
CPU at 6 MHz
CPU at 12 MHz
CPU at 24 MHz
CPU at 48 MHz
CPU at 62.6 MHz
T = –40 °C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0.8
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
T = 25 °C
T = 85 °C
T = –40 °C
T = 25 °C
T = 85 °C
T = –40 °C
T = 25 °C
T = 85 °C
T = –40 °C
T = 25 °C
T = 85 °C
T = –40 °C
T = 25 °C
T = 85 °C
T = –40 °C
T = 25 °C
T = 85 °C
–
1.2
–
–
2.0
–
–
3.5
–
–
6.6
–
–
9.0
–
V
= 3.3 V, T = 25 °C, IMO and bus CPU at 3 MHz
1.2
1.8
3.2
5.8
12.1
15.6
DD
clock enabled, ILO = 1 kHz, CPU
executing from flash and accessing
SRAM, all other blocks off, all I/Os
tied low.
CPU at 6 MHz
CPU at 12 MHz
CPU at 24 MHz
CPU at 48 MHz
CPU at 62.6 MHz
Notes
22. The power supplies can be brought up in any sequence however once stable VDDA must be greater than or equal to all other supplies.
23. The VDDIO supply voltage must be greater than the maximum analog voltage on the associated GPIO pins. Maximum analog voltage on GPIO pin ≤ VDDIO ≤ VDDA
.
24. The current consumption of additional peripherals that are implemented only in programmed logic blocks can be found in their respective datasheets, available in
PSoC Creator, the integrated design environment. To estimate total current, find CPU current at frequency of interest and add peripheral currents for your particular
system from the device datasheet and component datasheets.
Document Number: 001-53413 Rev. *I
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Table 11-2. DC Specifications (continued)
Parameter
Description
Sleep Mode[26]
Conditions
Min
Typ
Max
Units
CPU = OFF
RTC = ON (= ECO32K ON, in
low-power mode)
V
V
V
= V
= V
= V
= 4.5–5.5 V T = –40 °C
T = 25 °C
–
–
–
–
–
–
–
–
–
–
–
–
–
1
–
–
–
–
–
–
–
–
–
–
–
–
–
µA
µA
µA
µA
µA
µA
µA
µA
µA
DD
DD
DD
DDIO
T = 85 °C
Sleep timer = ON (= ILO ON at
[27]
= 2.7–3.6 V T = –40 °C
T = 25 °C
1 kHz)
DDIO
WDT = OFF
2
I C Wake = OFF
T = 85 °C
Comparator = OFF
POR = ON
Boost = OFF
SIO pins in single ended input,
unregulated output mode
= 1.71–1.95 V T = –40 °C
T = 25 °C
DDIO
T = 85 °C
Comparator = ON
CPU = OFF
V
= V
= 2.7–3.6 V T = 25 °C
–
–
–
µA
DD
DDIO
RTC = OFF
Sleep timer = OFF
WDT = OFF
I2C Wake = OFF
POR = ON
Boost = OFF
SIO pins in single ended input,
unregulated output mode
I2C Wake = ON
CPU = OFF
V
= V
= 2.7–3.6 V T = 25 °C
–
–
–
µA
DD
DDIO
RTC = OFF
Sleep timer = OFF
WDT = OFF
Comparator = OFF
POR = ON
Boost = OFF
SIO pins in single ended input,
unregulated output mode
Hibernate Mode[26]
V
V
V
= V
= V
= 4.5–5.5 V T = –40 °C
T = 25 °C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
nA
nA
nA
nA
nA
nA
nA
nA
nA
DD
DD
DD
DDIO
DDIO
DDIO
Hibernate mode current
All regulators and oscillators off.
SRAM retention
GPIO interrupts are active
Boost = OFF
SIO pins in single ended input,
unregulated output mode
T = 85 °C
–
= 2.7–3.6 V T = –40 °C
T = 25 °C
–
200
–
T = 85 °C
= V
= 1.71–1.95 V T = –40 °C
T = 25 °C
–
–
T = 85 °C
–
Notes
25. The current consumption of additional peripherals that are implemented only in programmed logic blocks can be found in their respective datasheets, available in
PSoC Creator, the integrated design environment. To compute total current, find CPU current at frequency of interest and add peripheral currents for your particular
system from the device datasheet and component datasheets.
26. If VCCD and VCCA are externally regulated, the voltage difference between VCCD and VCCA must be less than 50 mV.
27. Sleep timer generates periodic interrupts to wake up the CPU. This specification applies only to those times that the CPU is off.
Document Number: 001-53413 Rev. *I
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Table 11-3. AC Specifications[28]
Parameter
Description
Conditions
Min
DC
DC
–
Typ
–
Max
67
67
1
Units
MHz
MHz
V/ns
µs
F
F
CPU frequency
Bus frequency
1.71 V ≤ V
1.71 V ≤ V
≤ 5.5 V
≤ 5.5 V
CPU
DDD
DDD
–
BUSCLK
Svdd
V
ramp rate
–
DD
T
Time from V
/V /V /V
–
–
10
IO_INIT
DDD DDA CCD CCA
≥ IPOR to I/O ports set to their reset
states
T
Time from V
≥ PRES to CPU executing code at V
reset vector
/V
/V
/V
V
/V
/V
= regulated from
, no PLL used, fast IMO
–
–
–
–
–
–
33
66
15
µs
µs
µs
STARTUP
DDD DDA CCD CCA
CCA DDA
DDA DDD
boot mode (48 MHz typ.)
V
V
/V
/V
= regulated from
, no PLL used, slow
CCA CCD
DDA DDD
IMO boot mode (12 MHz typ.)
T
Wakeup from sleep mode –
Application of non–LVD interrupt to
beginning of execution of next CPU
instruction
SLEEP
T
Wakeup from hibernate mode –
Application of external interrupt to
beginning of execution of next CPU
instruction
–
–
100
µs
HIBERNATE
Figure 11-1. FCPU vs. VDD
5.5 V
Valid Operating Region
3.3 V
1.71 V
0.5 V
Valid Operating Region with SMP
0 V
DC
1 MHz
10 MHz
67 MHz
CPU Frequency
Note
28. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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11.3 Power Regulators
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.3.1 Digital Core Regulator
Table 11-4. Digital Core Regulator DC Specifications
Parameter Description
Input voltage
Conditions
Min
1.8
–
Typ
–
Max
5.5
–
Units
V
V
DDD
V
Output voltage
1.80
1
V
CCD
Regulator output capacitor
± 10%, ×5R ceramic or better. The two
–
–
µF
V
pins must be shorted together, with
CCD
as short a trace as possible, see Power
System on page 24
11.3.2 Analog Core Regulator
Table 11-5. Analog Core Regulator DC Specifications
Parameter Description
Input voltage
Conditions
Min
1.8
–
Typ
–
Max
5.5
–
Units
V
V
DDA
V
Output voltage
1.80
1
V
CCA
Regulator output capacitor
±10%, ×5R ceramic or better
–
–
µF
11.3.3 Inductive Boost Regulator.
Table 11-6. Inductive Boost Regulator DC Specifications
Unless otherwise specified, operating conditions are: V = 2.4 V, V
= 2.7 V, I
= 40 mA, F
= 400 kHz, L
= 22 µH,
BAT
OUT
OUT
SW
BOOST
C
= 22 µF || 0.1 µF
BOOST
Parameter
Description
Input voltage
Includes startup
Conditions
T=-35 °C to +65 °C
Over entire temperature range
Min
Typ
–
Max
5.5
5.5
50
Units
V
V
0.5
0.68
–
BAT
–
V
[29, 30]
I
Load current
V
= 1.6 – 5.5 V, V
= 3.6 – 5.0 V,
–
mA
OUT
BAT
OUT
OUT
OUT
OUT
OUT
external diode
V
= 1.6 – 3.6 V, V
= 1.6 – 3.6 V,
= 1.6 – 3.6 V,
= 3.6 – 5.0 V,
= 1.6 – 3.6 V,
–
–
–
–
–
–
–
–
75
30
20
15
mA
mA
mA
mA
BAT
internal diode
V
= 0.8 – 1.6 V, V
BAT
internal diode
V
= 0.8 – 1.6 V, V
BAT
external diode
V
= 0.5 – 0.8 V, V
BAT
internal diode
I
I
Inductor peak current
Quiescent current
–
–
–
–
700
–
mA
µA
µA
LPK
Q
Boost active mode
200
12
Boost standby mode, 32 khz external crystal
oscillator, I < 1 μA
–
OUT
Notes
29. For output voltages above 3.6 V, an external diode is required.
30. Maximum output current applies for output voltages ≤ 4x input voltage.
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Table 11-6. Inductive Boost Regulator DC Specifications (continued)
Unless otherwise specified, operating conditions are: V
= 2.4 V, V
= 2.7 V, I
= 40 mA, F
= 400 kHz, L
= 22 µH,
BAT
OUT
OUT
SW
BOOST
C
= 22 µF || 0.1 µF
BOOST
Parameter
Description
Conditions
Min
Typ
Max
Units
V
[31, 32]
OUT
Boost voltage range
1.8 V
1.71
1.81
1.90
2.28
2.57
2.85
3.14
3.42
4.75
–
1.80
1.90
2.00
2.40
2.70
3.00
3.30
3.60
5.00
–
1.89
2.00
2.10
2.52
2.84
3.15
3.47
3.78
5.25
3.8
V
V
1.9 V
2.0 V
V
2.4 V
V
2.7 V
V
3.0 V
V
3.3 V
V
3.6 V
V
5.0 V
External diode required
V
Reg
Reg
Load regulation
Line regulation
Efficiency
%
%
%
%
LOAD
–
–
4.1
LINE
ηOUT
L
L
= 10 µH
= 22 µH
70
85
–
BOOST
BOOST
82
90
–
Table 11-7. Inductive Boost Regulator AC Specifications
Parameter Description
Ripple voltage
Conditions
= 400 kHz, I = 10 mA
OUT
Min
Typ
Max
Units
V
V
= 1.8 V, F
–
–
100
mV
RIPPLE
OUT
SW
(peak-to-peak)
F
Switching frequency
–
0.1, 0.4,
or 2
–
MHz
SW
Table 11-8. Recommended External Components for Boost Circuit
Parameter
Description
Boost inductor
Conditions
Min
4.7
10
1
Typ
10
22
–
Max
47
47
–
Units
µH
µF
L
BOOST
[31]
C
Filter capacitor
BOOST
I
External Schottky diode
average forward current
External Schottky diode is required for
> 3.6 V
A
F
V
OUT
V
20
–
–
V
R
Notes
31. Based on device characterization (Not production tested).
32. At boost frequency of 2 MHz, Vboost is limited to 2 x Vbat. At 400 kHz, Vboost is limited to 4 x Vbat.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
11.4 Inputs and Outputs
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.4.1 GPIO
Table 11-1. GPIO DC Specifications
Parameter
Description
Input voltage high threshold
Input voltage low threshold
Input voltage high threshold
Conditions
Min
Typ
–
Max
Units
V
CMOS Input, PRT[×]CTL = 0 0.7 × V
CMOS Input, PRT[×]CTL = 0
LVTTL Input, PRT[×]CTL =
–
V
V
V
IH
DDIO
V
–
–
0.3 × V
DDIO
IL
V
V
V
V
0.7 × V
–
–
IH
IH
IL
IL
DDIO
1,V
< 2.7 V
DDIO
Input voltage high threshold
Input voltage low threshold
Input voltage low threshold
Output voltage high
LVTTL Input, PRT[×]CTL = 1,
≥ 2.7V
LVTTL Input, PRT[×]CTL =
1,V < 2.7 V
2.0
–
–
–
–
–
V
V
V
V
DDIO
0.3 × V
DDIO
DDIO
LVTTL Input, PRT[×]CTL = 1,
≥ 2.7V
–
0.8
V
DDIO
V
I
I
I
I
= 4 mA at 3.3 V
= 1 mA at 1.8 V
V
V
– 0.6
–
–
–
–
V
V
OH
OH
OH
OL
OL
DDIO
DDIO
DDIO
DDIO
DDIO
– 0.5
DDIO
V
Output voltage low
= 8 mA at 3.3 V
= 4 mA at 1.8 V
–
–
0.6
0.6
8.5
8.5
2
V
OL
–
–
V
Rpullup
Pull-up resistor
3.5
3.5
–
5.6
5.6
–
kΩ
kΩ
nA
pF
pF
mV
Rpulldown Pull-down resistor
[33]
I
Input leakage current (absolute value)
25 °C, V
= 3.0 V
DDIO
IL
[33]
C
Input capacitance
GPIOs without opamp outputs
GPIOs with opamp outputs
–
–
7
IN
–
–
18
–
V
Input voltage hysteresis
–
40
H
[33]
(Schmitt-Trigger)
Idiode
Current through protection diode to
–
–
100
µA
V
and V
DDIO
SSIO
Rglobal
Rmux
Resistance pin to analog global bus
Resistance pin to analog mux bus
25 °C, V
25 °C, V
= 3.0 V
= 3.0 V
–
–
320
220
–
–
Ω
Ω
DDIO
DDIO
Table 11-2. GPIO AC Specifications
Parameter
TriseF
Description
Conditions
Min
Typ
Max
Units
ns
[33]
[33]
Rise time in Fast Strong Mode
3.3 V V
3.3 V V
3.3 V V
3.3 V V
Cload = 25 pF
Cload = 25 pF
Cload = 25 pF
Cload = 25 pF
–
–
–
–
–
–
–
–
–
–
–
–
12
12
60
60
–
DDIO
DDIO
DDIO
DDIO
[33]
TfallF
Fall time in Fast Strong Mode
ns
TriseS
TfallS
Rise time in Slow Strong Mode
ns
[33]
Fall time in Slow Strong Mode
ns
GPIO output operating frequency
–
3.3 V < V
mode
< 5.5 V, fast strong drive 90/10% V
into 25 pF
into 25 pF
into 25 pF
into 25 pF
33
MHz
DDIO
DDIO
DDIO
DDIO
DDIO
1.71 V < V
mode
< 3.3 V, fast strong drive 90/10% V
–
–
–
–
–
–
20
7
MHz
MHz
MHz
DDIO
Fgpioout
3.3 V < V
mode
< 5.5 V, slow strong drive 90/10% V
DDIO
1.71 V < V
< 3.3 V, slow strong
90/10% V
3.5
DDIO
drive mode
GPIO input operating frequency
1.71 V < V < 5.5 V
Fgpioin
90/10% V
–
–
66
MHz
DDIO
DDIO
Note
33. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
11.4.2 SIO
Table 11-3. SIO DC Specifications
Parameter
Vinmax
Description
Conditions
Min
Typ
Max
Units
Maximum input voltage
All allowed values of Vddio and
Vddd, see Section 11.2.1
–
–
5.5
V
Vinref
Input voltage reference (Differ-
ential input mode)
0.5
–
0.52 × V
V
DDIO
Output voltage reference (Regulated output mode)
Voutref
V
V
> 3.7
< 3.7
1
1
–
–
V
– 1
DDIO
V
V
DDIO
DDIO
V
– 0.5
DDIO
Input voltage high threshold
GPIO mode
V
CMOS input
0.7 × V
–
–
–
V
V
IH
DDIO
[34]
Differential input mode
Hysteresis disabled
SIO_ref + 0.2
–
Input voltage low threshold
GPIO mode
V
CMOS input
–
–
–
–
0.3 × V
V
V
IL
DDIO
[34]
Differential input mode
Hysteresis disabled
SIO_ref – 0.2
Output voltage high
Unregulated mode
I
I
I
= 4 mA, V
= 1 mA
= 3.3 V
V – 0.4
DDIO
–
–
–
–
V
V
V
OH
OH
OH
DDIO
V
OH
[34]
Regulated mode
SIO_ref – 0.65
SIO_ref – 0.3
SIO_ref + 0.2
SIO_ref + 0.2
[34]
Regulated mode
= 0.1 mA
Output voltage low
V
V
V
= 3.30 V, I = 25 mA
–
–
–
–
0.8
0.4
8.5
8.5
–
V
V
OL
DDIO
OL
= 1.80 V, I = 4 mA
DDIO
OL
Rpullup
Pull-up resistor
3.5
3.5
–
5.6
5.6
–
kΩ
kΩ
–
Rpulldown
Pull-down resistor
I
Input leakage current (absolute
IL
[35]
value)
V
V
< Vddsio
> Vddsio
25 °C, Vddsio = 3.0 V, V = 3.0 V
–
–
–
–
–
–
–
–
14
10
7
nA
µA
pF
IH
IH
IH
25 °C, Vddsio = 0 V, V = 3.0 V
IH
[35]
C
Input Capacitance
–
IN
Input voltage hysteresis
(Schmitt-Trigger)
Single ended mode (GPIO mode)
Differential mode
40
35
–
–
mV
mV
µA
[35]
V
H
–
Current through protection diode
100
Idiode
to V
SSIO
Table 11-4. SIO AC Specifications
Parameter Description
TriseF
Conditions
Min
Typ
Max
Units
Rise time in Fast Strong Mode
Cload = 25 pF, V
Cload = 25 pF, V
Cload = 25 pF, V
Cload = 25 pF, V
= 3.3 V
= 3.3 V
= 3.0 V
= 3.0 V
–
–
–
–
–
12
ns
DDIO
DDIO
DDIO
DDIO
[35]
(90/10%)
TfallF
Fall time in Fast Strong Mode
(90/10%)
–
–
–
12
75
60
ns
ns
ns
[35]
TriseS
Rise time in Slow Strong Mode
(90/10%)
[35]
TfallS
Fall time in Slow Strong Mode
(90/10%)
[35]
Notes
34. See Figure 6-9 on page 30 and Figure 6-12 on page 33 for more information on SIO reference.
35. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 11-4. SIO AC Specifications (continued)
Parameter Description
SIO output operating frequency
3.3 V < V < 5.5 V, Unregu-
Conditions
Min
Typ
Max
Units
90/10% V
into 25 pF
–
–
33
MHz
DDIO
DDIO
DDIO
DDIO
DDIO
lated output (GPIO) mode, fast
strong drive mode
1.71 V < V
< 3.3 V, Unregu- 90/10% V
into 25 pF
into 25 pF
into 25 pF
–
–
–
–
–
–
–
–
–
–
–
–
16
5
MHz
MHz
MHz
MHz
MHz
MHz
DDIO
lated output (GPIO) mode, fast
strong drive mode
3.3 V < V
< 5.5 V, Unregu-
90/10% V
DDIO
lated output (GPIO) mode, slow
strong drive mode
1.71 V < V
lated output (GPIO) mode, slow
strong drive mode
< 3.3 V, Unregu- 90/10% V
4
DDIO
Fsioout
3.3 V < V
< 5.5 V, Regulated Output continuously switching
20
10
2.5
DDIO
output mode, fast strong drive
mode
into 25 pF
1.71 V < V
< 3.3 V, Regulated Output continuously switching
DDIO
output mode, fast strong drive
mode
into 25 pF
1.71 V < V
< 5.5 V, Regulated Output continuously switching
DDIO
output mode, slow strong drive
mode
into 25 pF
SIO input operating frequency
Fsioin
1.71 V < V
< 5.5 V
90/10% V
–
–
66
MHz
DDIO
DDIO
11.4.3 USBIO
For operation in GPIO mode, the standard range for V
applies, see Device Level Specifications on page 59.
DDD
Table 11-5. USBIO DC Specifications
Parameter
Rusbi
Description
USB D+ pull-up resistance
USB D+ pull-up resistance
Static output high
Conditions
Min
0.900
1.425
2.8
Typ
–
Max
Units
kΩ
With idle bus
1.575
3.090
3.6
Rusba
While receiving traffic
–
kΩ
Vohusb
15 kΩ ±5% to Vss, internal pull-up
–
V
enabled
Volusb
Static output low
15 kΩ ±5% to Vss, internal pull-up
enabled
–
–
0.3
V
Vohgpio
Volgpio
Vdi
Output voltage high, GPIO mode
Output voltage low, GPIO mode
Differential input sensitivity
I
I
= 4 mA, V
= 4 mA, V
≥ 3 V
≥ 3 V
2.4
–
–
–
–
–
–
V
V
V
V
OH
OL
DDD
0.3
0.2
2.5
DDD
|(D+)–(D–)|
–
Vcm
Differential input common mode
range
–
0.8
Vse
Single ended receiver threshold
PS/2 pull-up resistance
–
0.8
3
–
–
2
7
V
Rps2
In PS/2 mode, with PS/2 pull-up
enabled
kΩ
External USB series resistor
In series with each USB pin
21.78
(–1%)
22
22.22
(+1%)
Ω
Rext
Zo
USB driver output impedance
Including Rext
28
–
–
–
–
44
20
2
Ω
C
USB transceiver input capacitance
pF
nA
IN
Input leakage current (absolute
value)
25 °C, V
= 3.0 V
–
DDD
I
IL
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 11-6. USBIO AC Specifications
Parameter
Description
Full-speed data rate average bit rate
Conditions
Min
Typ
Max
Units
Tdrate
12 – 0.25%
12
12 +
MHz
0.25%
Tjr1
Receiver data jitter tolerance to next transition
Receiver data jitter tolerance to pair transition
Driver differential jitter to next transition
Driver differential jitter to pair transition
–8
–5
–
–
–
–
–
8
5
ns
ns
ns
ns
ns
Tjr2
Tdj1
Tdj2
Tfdeop
–3.5
–4
3.5
4
Source jitter for differential transition to SE0
transition
–2
5
Tfeopt
Tfeopr
Tfst
Source SE0 interval of EOP
160
82
–
–
–
–
–
–
–
–
–
–
175
–
ns
ns
Receiver SE0 interval of EOP
Width of SE0 interval during differential transition
14
20
6
ns
Fgpio_out GPIO mode output operating frequency
3 V ≤ V
≤ 5.5 V
–
MHz
MHz
ns
DDD
V
V
V
V
V
= 1.71 V
–
DDD
DDD
DDD
DDD
DDD
Tr_gpio
Tf_gpio
Rise time, GPIO mode, 10%/90% V
> 3 V, 25 pF load
= 1.71 V, 25 pF load
> 3 V, 25 pF load
= 1.71 V, 25 pF load
–
12
40
12
40
DDD
–
ns
Fall time, GPIO mode, 90%/10% V
–
ns
DDD
–
ns
Table 11-7. USB Driver AC Specifications
Parameter Description
Tr Transition rise time
Conditions
Min
–
Typ
Max
20
Units
ns
–
–
–
Tf
Transition fall time
–
20
ns
TR
Rise/fall time matching
V
, V
, see USB DC
90%
111%
USB_5
USB_3.3
Specifications on page 88
Vcrs
Output signal crossover voltage
1.3
–
2
V
11.4.4 XRES
Table 11-8. XRES DC Specifications
Parameter
Description
Input voltage high threshold
Input voltage low threshold
Conditions
Min
Typ
–
Max
–
Units
V
0.7 × V
V
V
IH
IL
DDIO
V
–
–
0.3 ×
V
DDIO
Rpullup
Pull-up resistor
3.5
–
5.6
3
8.5
kΩ
pF
[36]
C
Input capacitance
–
–
IN
H
V
Input voltage hysteresis
(Schmitt–Trigger)
–
100
mV
[36]
Idiode
Current through protection diode to
–
–
100
µA
V
and V
DDIO
SSIO
Table 11-9. XRES AC Specifications
Parameter Description
Reset pulse width
Conditions
Min
Typ
Max
Units
T
1
–
–
µs
RESET
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 11-9. XRES AC Specifications (continued)
Note
36. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
11.5 Analog Peripherals
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.5.1 Opamp
Table 11-10. Opamp DC Specifications
Parameter Description
Input offset voltage
Input offset voltage
Conditions
Min
–
Typ
–
Max
2
Units
mV
V
IOFF
Vos
–
–
2.5
2
mV
Operating temperature –40 °C to
70 °C
–
–
mV
TCVos
Ge1
Cin
Input offset voltage drift with temperature Power mode = high
–
–
–
±12
–
–
µV / °C
Gain error, unity gain buffer mode
Input capacitance
Rload = 1 kΩ
±0.1
18
%
pF
V
Routing from pin
–
Vo
Output voltage range
1 mA, source or sink, power mode = V
high
+ 0.05
–
V
–
SSA
DDA
0.05
Iout
Output current, source or sink
V
mV, V
+ 500 mV ≤ Vout ≤ V
–500
25
16
–
–
–
mA
mA
SSA
DDA
> 2.7 V
DDA
V
+ 500 mV ≤ Vout ≤ V
–500
–
SSA
DDA
mV, 1.7 V = V
≤ 2.7 V
DDA
Idd
Quiescent current
Power mode = min
Power mode = low
Power mode = med
Power mode = high
–
–
200
250
330
1000
–
270
400
950
2500
–
uA
uA
uA
uA
dB
dB
dB
–
–
CMRR
PSRR
Common mode rejection ratio
Power supply rejection ratio
80
85
70
Vdda ≥ 2.7 V
Vdda < 2.7 V
–
–
–
–
Figure11-9. OpampVoffsetHistogram, 60samples/15parts,
25 °C, Vdda = 5V
Figure 11-10. Opamp Voffset vs Temperature, Vdda = 5V
Document Number: 001-53413 Rev. *I
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Figure 11-11. Opamp Voffset vs Common Mode Voltage and
Temperature, Power Mode = High
Figure 11-12. Opamp Output Voltage vs Load Current and
Temperature, 25 °C, Vdda = 5V
Figure 11-13. Opamp Operating Current vs Vdda,
Power Mode = Minimum
Figure 11-14. Opamp Operating Current vs Vdda,
Power Mode = Low
Figure 11-15. Opamp Operating Current vs Vdda,
Power Mode = Medium
Figure 11-16. Opamp Operating Current vs Vdda,
Power Mode = High
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 11-11. Opamp AC Specifications
Parameter
GBW
Description
Gain-bandwidth product
Conditions
Min
1
2
1
3
1.1
0.9
3
Typ
–
–
–
–
–
–
–
45
Max
–
–
–
–
–
–
–
–
Units
MHz
MHz
MHz
MHz
V/µs
V/µs
V/µs
Power mode = minimum, 200 pF load
Power mode = low, 200 pF load
Power mode = medium, 200 pF load
Power mode = high, 200 pF load
Power mode = low, 200 pF load
Power mode = medium, 200 pF load
Power mode = high, 200 pF load
SR
Slew rate, 20% - 80%
Input noise density
e
Power mode = high, Vdda = 5 V,
at 100 kHz
–
nV/sqrtHz
n
Figure 11-17. Open Loop Gain and Phase vs Frequency and
Temperature, Power Mode = High, Cl = 15 Pf, Vdda = 5V
Figure 11-18. Opamp Closed Loop Frequency Response,
Gain = 1, Vdda = 5V
Figure 11-19. Opamp Closed Loop Frequency Response,
Gain = 10, Vdda = 5V
Figure 11-20. Opamp test Circuit for Gain = 10
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Figure 11-21. Opamp Noise vs Frequency, Power Mode =
Figure 11-22. Opamp CMRR vs Frequency
High, Vdda = 5V
Figure 11-23. Opamp PSRR vs Frequency
Note
37. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
11.5.2 Delta-Sigma ADC
Unless otherwise specified, operating conditions are:
Operation in continuous sample mode
fclk = 6.144 MHz
Reference = 1.024 V internal reference bypassed on P3.2 or P0.3
Unless otherwise specified, all charts and graphs show typical values
Table 11-12. 12-bit Delta-sigma ADC DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Resolution
8
–
12
bits
No. of
GPIO
Number of channels, single ended
–
–
–
Differential pair is formed using a
pair of GPIOs.
Yes
Buffered, buffer gain = 1,
modulator gain = 1, 25 °C
No. of
GPIO/2
Number of channels, differential
Monotonic
–
–
–
–
–
–
–
–
–
Ge
Gain error
±0.2
%
Buffered, buffer gain = 1,
modulator gain = 1
Buffered
Gd
Gain drift
–
–
–
–
–
–
–
–
50
±0.1
55
ppm/°C
mV
Vos
Input offset voltage
Temperature coefficient, input offset
voltage
TCVos
Buffered
µV/°C
V
[38]
Input voltage range, single ended
V
V
SSA
SSA
DDA
DDA
Input voltage range, differential unbuf-
V
V
V
V
[38]
fered
Input voltage range, differential,
–
V
– 1
V
[38]
SSA
DDA
buffered
[38]
INL12
DNL12
INL8
DNL8
Rin_Buff
Integral non linearity
Differential non linearity
Integral non linearity
Differential non linearity
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
Input buffer used
–
–
–
–
–
–
–
–
–
±1
±1
±1
±1
–
LSB
LSB
LSB
LSB
MΩ
[38]
[38]
[38]
ADC input resistance
10
Input buffer bypassed, 12 bit, Range
= ±1.024 V
Gain = 1
[39]
Rin_ADC12 ADC input resistance
–
148
–
–
kΩ
[38]
Cin_G1
Vextref
ADC input capacitance
–
5
–
pF
ADC external reference input voltage, see
also internal reference in Voltage
Reference on page 75
Pins P0[3], P3[2]
0.9
1.3
V
Current Consumption
[38]
I
I
Current consumption, 12 bit
Buffer current consumption
192 ksps, unbuffered
–
–
–
–
1.4
2.5
mA
mA
DD_12
BUFF
[38]
Notes
38. Based on device characterization (not production tested).
39. By using switched capacitors at the ADC input an effective input resistance is created. Holding the gain and number of bits constant, the resistance is proportional to
the inverse of the clock frequency. This value is calculated, not measured. For more information see the Technical Reference Manual.
Document Number: 001-53413 Rev. *I
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Table 11-13. Delta-sigma ADC AC Specifications
Parameter
Description
Conditions
Min
–
Typ
–
Max
4
Units
Samples
%
Startup time
Total harmonic distortion
[40]
THD
Buffer gain = 1, 16 bit,
Range = ±1.024 V
–
–
0.0032
12-Bit Resolution Mode
[40]
SR12
BW12
Sample rate, continuous, high power
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
4
–
–
44
–
192
–
ksps
kHz
dB
[40]
Input bandwidth at max sample rate
[40]
SINAD12int Signal to noise ratio, 12-bit, internal reference
Range = ±1.024 V, unbuffered 66
–
8-Bit Resolution Mode
[40]
SR8
Sample rate, continuous, high power
Range = ±1.024 V, unbuffered
Range = ±1.024 V, unbuffered
8
–
–
88
–
384
–
ksps
kHz
dB
[40]
BW8
Input bandwidth at max sample rate
[40]
SINAD8int Signal to noise ratio, 8-bit, internal reference
Range = ±1.024 V, unbuffered 43
–
Table 11-14. Delta-sigma ADC Sample Rates, Range = ±1.024 V
Continuous
Multi-Sample
Resolution,
Bits
Min
Max
Min
1911
1543
1348
1154
978
Max
8
8000
6400
5566
4741
4000
384000
307200
267130
227555
192000
91701
74024
64673
55351
46900
9
10
11
12
Figure 11-24. Delta-sigma ADC IDD vs sps, Range = ±1.024 V Figure 11-25. Delta-sigma ADC INL at Maximum Sample Rate
2.5
1.20
1.00
2.0
0.80
.5
0.60
.0
0.5
0.0
0.40
0.20
0.00
1
10
100
1,000
10,000
100,000
1,000,000
7
8
9
10
11
12
13
Sample rate, samples per second, sps
Resolution bits
Note
40. Based on device characterization (Not production tested).
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Figure 11-26. Delta-sigma ADC Noise Histogram, 1000 sam-
ples, 12-bit, 192 ksps, Int Ref, VIN = VREF/2, Range = ±1.024 V
100.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
ADC counts
11.5.3 Voltage Reference
Table 11-15. Voltage Reference Specifications
See also ADC external reference specifications in Section 11.5.2.
Parameter
Description
Conditions
Initial trimming
Min
Typ
Max
Units
V
Precision reference voltage
1.023
1.024
1.025
V
REF
(–0.1%)
(+0.1%)
[41]
Temperature drift
–
–
–
–
20
–
ppm/°C
ppm/Khr
ppm
Long term drift
100
100
[41]
Thermal cycling drift (stability)
–
11.5.4 Analog Globals
Table 11-16. Analog Globals Specifications
Parameter
Rppag
Description
Conditions
= 3.0 V
Min
Typ
Max
Units
Resistance pin-to-pin through
V
V
–
939
1461
Ω
DDA
[42]
analog global
Rppmuxbus
Resistance pin-to-pin through
= 3.0 V
–
721
1135
Ω
DDA
[42]
analog mux bus
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11.5.5 Comparator
Table 11-17. Comparator DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Input offset voltage in fast mode
Factory trim, Vdda > 2.7 V,
Vin ≥ 0.5 V
–
10
mV
V
OS
Input offset voltage in slow mode Factory trim, Vin ≥ 0.5 V
–
–
–
–
9
4
4
–
mV
mV
mV
mV
[42]
Input offset voltage in fast mode
Input offset voltage in slow mode
Custom trim
Custom trim
–
–
V
V
OS
[42]
Input offset voltage in ultra
low-power mode
±12
OS
V
V
Hysteresis
Hysteresis enable mode
High current / fast mode
Low current / slow mode
Ultra low power mode
–
10
–
32
mV
V
HYST
Input common mode voltage
V
V
– 0.1
DDA
ICM
SSA
SSA
V
V
–
V
V
DDA
–
V
– 0.9
V
SSA
DDA
CMRR
Common mode rejection ratio
–
50
–
–
dB
µA
µA
µA
[41]
I
High current mode/fast mode
–
–
–
400
100
–
CMP
[41]
Low current mode/slow mode
–
[41]
Ultra low-power mode
6
Table 11-18. Comparator AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Response time, high current
mode
50 mV overdrive, measured
pin-to-pin
–
75
110
ns
[41]
Response time, low current
mode
50 mV overdrive, measured
pin-to-pin
–
–
155
55
200
–
ns
µs
T
[41]
RESP
Response time, ultra low-power
50 mV overdrive, measured
pin-to-pin
[41]
mode
11.5.6 Current Digital-to-analog Converter(IDAC)
See the IDAC component datasheet in PSoC Creator for full electrical specifications and APIs.
Unless otherwise specified, all charts and graphs show typical values.
Table 11-19. IDAC DC Specifications
Parameter
Description
Conditions
Min
–
Typ
–
Max
8
Units
bits
Resolution
I
Output current at code = 255
Range = 2.048 mA, code = 255,
–
2.048
–
mA
OUT
V
≥ 2.7 V, Rload = 600 Ω
DDA
Range = 2.048 mA, High mode,
–
2.048
–
mA
code = 255, V
300 Ω
≤ 2.7 V, Rload =
DDA
Range=255µA, code=255, Rload
= 600 Ω
–
–
255
–
–
µA
µA
Range = 31.875 µA, code = 255,
31.875
Rload = 600 Ω
Monotonicity
–
–
–
0
Yes
±1
Ezs
Zero scale error
LSB
Notes
41. Based on device characterization (Not production tested).
42. The resistance of the analog global and analog mux bus is high if V
≤ 2.7 V, and the chip is in either sleep or hibernate mode. Use of analog global and analog
DDA
mux bus under these conditions is not recommended.
43. The recommended procedure for using a custom trim value for the on-chip comparators can be found in the TRM.
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Table 11-19. IDAC DC Specifications (continued)
Parameter Description
Eg
Conditions
Min
–
Typ
–
Max
±2.5
±2.5
±3.5
0.04
0.04
0.05
±1
Units
%
Gain error
Range = 2.048 mA, 25 °C
Range = 255 µA, 25 ° C
Range = 31.875 µA, 25 ° C
Range = 2.048 mA
–
–
%
–
–
%
TC_Eg
INL
Temperature coefficient of gain
error
–
–
% / °C
% / °C
% / °C
LSB
Range = 255 µA
–
–
Range = 31.875 µA
–
–
Integral nonlinearity
Sink mode, range = 255 µA, Codes
8 – 255, Rload = 2.4 kΩ, Cload =
15 pF
–
±0.9
Source mode, range = 255 µA,
Codes 8 – 255, Rload = 2.4 kΩ,
Cload = 15 pF
–
±1.2
±1.5
LSB
DNL
Differential nonlinearity
Sink mode, range = 255 µA, Rload
= 2.4 kΩ, Cload = 15 pF
–
–
1
±0.3
±0.3
–
±1
±1
–
LSB
LSB
V
Source mode, range = 255 µA,
Rload = 2.4 kΩ, Cload = 15 pF
Vcompliance
Dropout voltage, source or sink
mode
Voltage headroom at max current,
Rload to Vdda or Rload to Vssa,
Vdiff from Vdda
I
Operating current, code = 0
Slow mode, source mode,
range = 31.875 µA
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
44
33
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
DD
Slow mode, source mode,
range = 255 µA,
Slow mode, source mode,
range = 2.04 mA
33
Slow mode, sink mode,
range = 31.875 µA
36
Slow mode, sink mode,
range = 255 µA
33
Slow mode, sink mode,
range = 2.04 mA
33
Fast mode, source mode,
range = 31.875 µA
310
305
305
310
300
300
Fast mode, source mode,
range = 255 µA
Fast mode, source mode,
range = 2.04 mA
Fast mode, sink mode,
range = 31.875 µA
Fast mode, sink mode,
range = 255 µA
Fast mode, sink mode,
range = 2.04 mA
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Figure 11-27. IDAC INL vs Input Code, Range = 255 µA,
Source Mode
Figure 11-28. IDAC INL vs Input Code, Range = 255 µA, Sink
Mode
Figure 11-29. IDAC DNL vs Input Code, Range = 255 µA,
Source Mode
Figure 11-30. IDAC DNL vs Input Code, Range = 255 µA, Sink
Mode
Figure11-31. IDAC INL vsTemperature, Range= 255µA, Fast
Mode
Figure 11-32. IDAC DNL vs Temperature, Range = 255 µA,
Fast Mode
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Figure 11-33. IDAC Full Scale Error vs Temperature, Range
= 255 µA, Source Mode
Figure 11-34. IDAC Full Scale Error vs Temperature, Range
= 255 µA, Sink Mode
Figure 11-35. IDAC Operating Current vs Temperature,
Range = 255 µA, Code = 0, Source Mode
Figure 11-36. IDAC Operating Current vs Temperature,
Range = 255 µA, Code = 0, Sink Mode
Table 11-20. IDAC AC Specifications
Parameter
Description
Update rate
Settling time to 0.5 LSB
Conditions
Min
–
Typ
–
Max
8
Units
Msps
ns
F
DAC
T
Range = 31.875 µA or 255 µA, full
scale transition, fast mode, 600 Ω
15-pF load
–
–
125
SETTLE
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11.5.7 Voltage Digital to Analog Converter (VDAC)
See the VDAC component datasheet in PSoC Creator for full electrical specifications and APIs.
Unless otherwise specified, all charts and graphs show typical values.
Table 11-21. VDAC DC Specifications
Parameter
Description
Conditions
Min
–
Typ
8
Max
–
Units
Resolution
bits
INL1
Integral nonlinearity
Differential nonlinearity
Output resistance
1 V scale
1 V scale
1 V scale
4 V scale
–
±2.1
±0.3
4
±2.5
±1
LSB
DNL1
Rout
–
LSB
–
–
kΩ
–
16
1
–
kΩ
V
Output voltage range, code = 255 1 V scale
–
–
V
OUT
4 V scale, Vdda = 5 V
–
4
–
V
Monotonicity
Zero scale error
Gain error
–
–
Yes
±0.9
±2.5
±2.5
0.03
0.03
100
500
–
V
–
0
LSB
OS
Eg
1 V scale, 25 °C
4 V scale, 25 °C
–
–
%
%
–
–
TC_Eg
Temperature coefficient, gain error 1 V scale, 25 °C
4 V scale, 25 °C
–
–
%FSR / °C
%FSR / °C
µA
–
–
I
Operating current
Slow mode
Fast mode
–
–
DD
–
–
µA
Figure 11-37. VDAC INL vs Input Code, 1 V Mode
Figure 11-38. VDAC DNL vs Input Code, 1 V Mode
Figure 11-39. VDAC INL vs Temperature, 1 V Mode
Figure 11-40. VDAC DNL vs Temperature, 1 V Mode
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Figure 11-41. VDAC Full Scale Error vs Temperature, 1 V
Mode
Figure 11-42. VDAC Full Scale Error vs Temperature, 4 V
Mode
Figure 11-43. VDAC Operating Current vs Temperature, 1V
Mode, Slow Mode
Figure 11-44. VDAC Operating Current vs Temperature, 1 V
Mode, Fast Mode
Table 11-22. VDAC AC Specifications
Parameter
Description
Update rate
Conditions
Min
–
Typ
–
Max
1000
250
1
Units
ksps
ksps
µs
F
1 V scale
4 V scale
DAC
–
–
TsettleP
TsettleN
Settling time to 0.1%, step 25% to 1 V scale, Cload = 15 pF
75%
–
0.45
4 V scale, Cload = 15 pF
–
–
0.8
3.2
1
µs
µs
Settling time to 0.1%, step 75% to 1 V scale, Cload = 15 pF
25%
0.45
4 V scale, Cload = 15 pF
–
0.7
3
µs
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11.5.8 Mixer
The mixer is created using a SC/CT analog block; see the Mixer component datasheet in PSoC Creator for full electrical specifications
and APIs.
Table 11-23. Mixer DC Specifications
Parameter
Description
Input offset voltage
Conditions
Min
–
Typ
–
Max
10
2
Units
mV
V
OS
Quiescent current
Gain
–
0.9
0
mA
G
–
–
dB
Table 11-24. Mixer AC Specifications
Parameter
Description
Local oscillator frequency
Input signal frequency
Local oscillator frequency
Input signal frequency
Slew rate
Conditions
Min
–
Typ
–
Max
4
Units
MHz
MHz
MHz
MHz
V/µs
f
f
Down mixer mode
LO
f
Down mixer mode
Up mixer mode
Up mixer mode
–
–
14
1
in
LO
–
–
f
–
–
1
in
SR
3
–
–
11.5.9 Transimpedance Amplifier
The TIA is created using a SC/CT analog block; see the TIA component datasheet in PSoC Creator for full electrical specifications
and APIs.
Table 11-25. Transimpedance Amplifier (TIA) DC Specifications
Parameter
Description
Input offset voltage
Conversion resistance
Conditions
Min
–
Typ
–
Max
10
Units
mV
%
V
IOFF
[45]
Rconv
R = 20K; 40 pF load
–25
–25
–25
–25
–25
–25
–25
–25
–
–
+35
+35
+35
+35
+35
+35
+35
+35
2
R = 30K; 40 pF load
R = 40K; 40 pF load
R = 80K; 40 pF load
R = 120K; 40 pF load
R = 250K; 40 pF load
R= 500K; 40 pF load
R = 1M; 40 pF load
–
%
–
%
–
%
–
%
–
%
–
%
–
%
Quiescent current
1.1
mA
Table 11-26. Transimpedance Amplifier (TIA) AC Specifications
Parameter
BW
Description
Conditions
Min
Typ
Max
Units
Input bandwidth (–3 dB)
R = 20K; –40 pF load
1500
–
–
kHz
R = 120K; –40 pF load
R = 1M; –40 pF load
240
25
–
–
–
–
kHz
kHz
Notes
44. Based on device characterization (Not production tested).
45. Conversionresistance values are not calibrated. Calibrated values and details about calibration are provided inPSoC Creator component datasheets. External precision
resistors can also be used.
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11.5.10 Programmable Gain Amplifier
The PGA is created using a SC/CT analog block; see the PGA component datasheet in PSoC Creator for full electrical specifications
and APIs.
Unless otherwise specified, operating conditions are:
Operating temperature = 25 °C for typical values
Unless otherwise specified, all charts and graphs show typical values
Table 11-27. PGA DC Specifications
Parameter
Vin
Description
Input voltage range
Input offset voltage
Conditions
Min
Vssa
–
Typ
–
Max
Vdda
10
Units
V
Power mode = minimum
Vos
Power mode = high,
gain = 1
–
mV
TCVos
Input offset voltage drift
with temperature
Power mode = high,
gain = 1
–
–
±30
µV/°C
Ge1
Gain error, gain = 1
Gain error, gain = 16
Gain error, gain = 50
DC output nonlinearity
–
–
–
–
–
–
–
–
±0.15
±2.5
±5
%
%
%
Ge16
Ge50
Vonl
Gain = 1
±0.01
% of
FSR
Cin
Input capacitance
–
–
–
7
–
pF
V
Voh
Output voltage swing
Power mode = high,
V
– 0.15
DDA
gain = 1, Rload = 100 kΩ
to V
/ 2
DDA
Vol
Output voltage swing
Power mode = high,
–
–
–
–
V
+ 0.15
V
SSA
gain = 1, Rload = 100 kΩ
to V
/ 2
DDA
Vsrc
Output voltage under load
Operating current
Iload = 250 µA, Vdda ≥
2.7V, power mode = high
300
mV
Idd
Power mode = high
–
1.5
–
1.65
–
mA
dB
PSRR
Power supply rejection
ratio
48
Figure 11-45. Voffset Histogram, 1000 Samples, Vdda = 5 V
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Table 11-28. PGA AC Specifications
Parameter
Description
–3 dB bandwidth
Conditions
Min
Typ
Max
Units
BW1
Power mode = high,
gain = 1, input = 100 mV
peak-to-peak
6.7
8
–
MHz
SR1
Slew rate
Power mode = high,
gain = 1, 20% to 80%
3
–
–
–
–
V/µs
e
Input noise density
Power mode = high,
43
nV/sqrtHz
n
Vdda = 5 V, at 100 kHz
Figure 11-46. Gain vs. Frequency, at Different Gain Settings,
Vdda = 3.3 V, Power Mode = High
Figure 11-47. Bandwidth vs. Temperature, at Different Gain
Settings, Power Mode = High
Figure 11-48. Noise vs. Frequency, Vdda = 5 V,
Power Mode = High
11.5.11 Temperature Sensor
Table 11-29. Temperature Sensor Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Temp sensor accuracy
Range: –40 °C to +85 °C
–
±5
–
°C
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11.5.12 LCD Direct Drive
Table 11-30. LCD Direct Drive DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
I
LCD system operating current
Device sleep mode with wakeup at
400-Hz rate to refresh LCDs, bus
clock = 3 Mhz, Vddio = Vdda = 3 V,
4 commons, 16 segments, 1/4 duty
cycle, 50 Hz frame rate, no glass
connected
–
38
–
μA
CC
I
Current per segment driver
Strong drive mode
–
2
260
–
–
5
µA
V
CC_SEG
V
LCD bias range (V
refers to the
V
≥ 3 V and V
≥ V
≥ V
BIAS
BIAS
DDA
DDA
BIAS
main output voltage(V0) of LCD DAC)
LCD bias step size
V
≥ 3 V and V
–
–
9.1 × V
–
mV
pF
DDA
DDA
BIAS
DDA
LCD capacitance per
Drivers may be combined
500
5000
segment/common driver
Long term segment offset
–
–
–
20
mV
µA
I
Output drive current per segment
driver)
Vddio = 5.5V, strong drive mode
355
710
OUT
Table 11-31. LCD Direct Drive AC Specifications
Parameter
Description
LCD frame rate
Conditions
Min
Typ
Max
Units
f
10
50
150
Hz
LCD
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11.6 Digital Peripherals
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.6.1 Timer
The following specifications apply to the Timer/Counter/PWM peripheral in timer mode. Timers can also be implemented in UDBs; for
more information, see the Timer component datasheet in PSoC Creator.
Table 11-32. Timer DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Block current consumption
16-bit timer, at listed input clock
frequency
–
–
–
µA
3 MHz
–
–
–
–
15
60
–
–
–
–
µA
µA
µA
µA
12 MHz
48 MHz
67 MHz
260
350
Table 11-33. Timer AC Specifications
Parameter Description
Operating frequency
Conditions
Min
DC
15
30
15
15
30
15
30
Typ
–
Max
67
–
Units
MHz
ns
Capture pulse width (Internal)
Capture pulse width (external)
Timer resolution
–
–
–
ns
–
–
ns
Enable pulse width
–
–
ns
Enable pulse width (external)
Reset pulse width
–
–
ns
–
–
ns
Reset pulse width (external)
–
–
ns
11.6.2 Counter
The following specifications apply to the Timer/Counter/PWM peripheral, in counter mode. Counters can also be implemented in
UDBs; for more information, see the Counter component datasheet in PSoC Creator.
Table 11-34. Counter DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Block current consumption
16–bit counter, at listed input clock
frequency
–
–
–
µA
3 MHz
–
–
–
–
15
60
–
–
–
–
µA
µA
µA
µA
12 MHz
48 MHz
67 MHz
260
350
Table 11-35. Counter AC Specifications
Parameter Description
Operating frequency
Conditions
Min
DC
15
15
15
30
15
30
15
30
Typ
–
Max
67
–
Units
MHz
ns
Capture pulse
–
Resolution
–
–
ns
Pulse width
–
–
ns
Pulse width (external)
Enable pulse width
Enable pulse width (external)
Reset pulse width
Reset pulse width (external)
–
–
ns
–
–
ns
–
–
ns
–
–
ns
–
–
ns
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11.6.3 Pulse Width Modulation
The following specifications apply to the Timer/Counter/PWM peripheral, in PWM mode. PWM components can also be implemented
in UDBs; for more information, see the PWM component datasheet in PSoC Creator.
Table 11-36. PWM DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Block current consumption
16-bit PWM, at listed input clock
frequency
–
–
–
µA
3 MHz
–
–
–
–
15
60
–
–
–
–
µA
µA
µA
µA
12 MHz
48 MHz
67 MHz
260
350
Table 11-37. Pulse Width Modulation (PWM) AC Specifications
Parameter
Description
Operating frequency
Conditions
Min
DC
15
30
15
30
15
30
15
30
Typ
–
Max
67
–
Units
MHz
ns
Pulse width
–
Pulse width (external)
Kill pulse width
–
–
ns
–
–
ns
Kill pulse width (external)
Enable pulse width
–
–
ns
–
–
ns
Enable pulse width (external)
Reset pulse width
–
–
ns
–
–
ns
Reset pulse width (external)
–
–
ns
11.6.4 I2C
Table 11-38. Fixed I2C DC Specifications
Parameter
Description
Conditions
Min
–
Typ
–
Max
250
260
30
Units
µA
Block current consumption
Enabled, configured for 100 kbps
Enabled, configured for 400 kbps
Wake from sleep mode
–
–
µA
–
–
µA
Table 11-39. Fixed I2C AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Bit rate
–
–
1
Mbps
[46]
11.6.5 Controller Area Network
Table 11-40. CAN AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Bit rate
Minimum 8 MHz clock
–
–
1
Mbit
Note
46. Refer to ISO 11898 specification for details.
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11.6.6 Digital Filter Block
Table 11-41. DFB DC Specifications
Parameter
Description
Conditions
64-tap FIR at F
Min
Typ
Max
Units
DFB operating current
DFB
100 kHz (1.3 ksps)
500 kHz (6.7 ksps)
1 MHz (13.4 ksps)
10 MHz (134 ksps)
48 MHz (644 ksps)
67 MHz (900 ksps)
–
–
–
–
–
–
0.03
0.16
0.33
3.3
0.05
0.27
0.53
5.3
mA
mA
mA
mA
mA
mA
15.7
21.8
25.5
35.6
Table 11-42. DFB AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
F
DFB operating frequency
DC
–
67
MHz
DFB
11.6.7 USB
Table 11-43. USB DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
V
V
V
Device supply for USB operation
USB configured, USB regulator
enabled
4.35
–
5.25
V
USB_5
USB configured, USB regulator
bypassed
3.15
2.85
–
–
3.6
3.6
V
V
USB_3.3
USB_3
USB configured, USB regulator
[47]
bypassed
Note
47. Rise/fall time matching (TR) not guaranteed, see USB Driver AC Specifications on page 67.
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11.6.8 Universal Digital Blocks (UDBs)
PSoC Creator provides a library of prebuilt and tested standard digital peripherals (UART, SPI, LIN, PRS, CRC, timer, counter, PWM,
AND, OR, and so on) that are mapped to the UDB array. See the component datasheets in PSoC Creator for full AC/DC specifications,
APIs, and example code.
Table 11-44. UDB AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Datapath Performance
F
F
F
Maximumfrequencyof16-bittimerin
a UDB pair
–
–
–
–
–
–
67
67
67
MHz
MHz
MHz
MAX_TIMER
MAX_ADDER
MAX_CRC
Maximum frequency of 16-bit adder
in a UDB pair
Maximum frequency of 16-bit
CRC/PRS in a UDB pair
PLD Performance
F
Maximum frequency of a two-pass
PLD function in a UDB pair
–
–
67
MHz
MAX_PLD
Clock to Output Performance
t
Propagation delay for clock in to data 25 °C, Vddd ≥ 2.7 V
–
–
20
–
25
55
ns
ns
CLK_OUT
out, see Figure 11-49.
t
Propagation delay for clock in to data Worst-case placement, routing,
CLK_OUT
out, see Figure 11-49.
and pin selection
Figure 11-49. Clock to Output Performance
11.7 Memory
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.7.1 Flash
Table 11-45. Flash DC Specifications
Parameter
Description
Conditions
Conditions
Min
Typ
Max
Units
Erase and program voltage
V
pin
1.71
–
5.5
V
DDD
Table 11-46. Flash AC Specifications
Parameter
Description
Min
Typ
Max
Units
T
Row write time (erase + program)
–
–
15
ms
WRITE
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Table 11-46. Flash AC Specifications (continued)
Parameter Description
Row erase time
Row program time
Conditions
Min
–
Typ
–
Max
10
5
Units
ms
T
ERASE
–
–
ms
T
Bulk erase time (16 KB to 64 KB)
Sector erase time (8 KB to 16 KB)
–
–
35
15
5
ms
BULK
–
–
ms
Total device program time
(including JTAG, and so on)
–
–
seconds
Flash endurance
100k
20
–
–
–
–
program/
erase
cycles
Flash data retention time
Retention period measured from
last erase cycle
years
11.7.2 EEPROM
Table 11-47. EEPROM DC Specifications
Parameter
Description
Conditions
Conditions
Min
Typ
Max
Units
Erase and program voltage
1.71
–
5.5
V
Table 11-48. EEPROM AC Specifications
Parameter
Description
Single row erase/write cycle time
EEPROM endurance
Min
–
Typ
2
Max
15
–
Units
T
ms
WRITE
1M
–
program/
erase
cycles
EEPROM data retention time
Retention period measured from
last erase cycle (up to 100 K cycles)
20
–
–
years
11.7.3 Nonvolatile Latches (NVL))
Table 11-49. NVL DC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
Erase and program voltage
V
pin
1.71
–
5.5
V
DDD
Table 11-50. NVL AC Specifications
Parameter Description
NVL endurance
Conditions
Min
Typ
Max
Units
Programmed at 25 °C
1K
–
–
program/
erase
cycles
Programmed at 0 °C to 70 °C
100
–
–
program/
erase
cycles
NVL data retention time
Programmed at 25 °C
20
20
–
–
–
–
years
years
Programmed at 0 °C to 70 °C
11.7.4 SRAM
Table 11-51. SRAM DC Specifications
Parameter
Description
Conditions
Conditions
Min
Typ
Max
Units
V
SRAM retention voltage
1.2
–
–
V
SRAM
Table 11-52. SRAM AC Specifications
Parameter
Description
Min
Typ
Max
Units
F
SRAM operating frequency
DC
–
67
MHz
SRAM
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11.7.5 External Memory Interface
EM_CEn
Figure 11-50. Asynchronous Read Cycle Timing
Tcel
Taddrv
Taddrh
EM_Addr
Address
Toel
EM_OEn
EM_WEn
EM_Data
Tdoesu
Tdoeh
Data
Table 11-53. Asynchronous Read Cycle Specifications
Parameter
Description
Conditions
Min
30.3
2T – 5
–
Typ
Max
Units
nS
[48]
T
EMIF clock period
Vdda ≥ 3.3 V
–
–
–
–
–
–
–
–
Tcel
EM_CEn low time
2T+ 5
nS
Taddrv
Taddrh
Toel
EM_CEn low to EM_Addr valid
Address hold time after EM_Wen high
EM_OEn low time
5
nS
T
–
nS
2T – 5
T + 15
3
2T + 5
nS
Tdoesu
Tdoeh
Data to EM_OEn high setup time
Data hold time after EM_OEn high
–
–
nS
nS
Note
48. Limited by GPIO output frequency, see Table 11-2 on page 64.
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Figure 11-51. Asynchronous Write Cycle Timing
Taddrv
Taddrh
EM_Addr
EM_CEn
Address
Tcel
Twel
EM_WEn
EM_OEn
Tdweh
Tdcev
EM_Data
Data
Table 11-54. Asynchronous Write Cycle Specifications
Parameter
T
Description
Conditions
Vdda ≥ 3.3 V
Min
Typ
–
Max
Units
nS
[49]
EMIF clock period
30.3
–
Tcel
EM_CEn low time
T – 5
–
T + 5
nS
Taddrv
Taddrh
Twel
EM_CEn low to EM_Addr valid
Address hold time after EM_WEn high
EM_WEn low time
–
T
–
5
–
nS
–
nS
T – 5
–
–
T + 5
7
nS
Tdcev
Tdweh
EM_CEn low to data valid
Data hold time after EM_WEn high
–
nS
T
–
–
nS
Note
49. Limited by GPIO output frequency, see Table 11-2 on page 64.
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Figure 11-52. Synchronous Read Cycle Timing
Tcp/2
EM_Clock
EM_CEn
Tceld
Tcehd
Taddriv
Taddrv
EM_Addr
EM_OEn
Address
Toeld
Toehd
Tds
Data
EM_Data
Tadschd
Tadscld
EM_ ADSCn
Table 11-55. Synchronous Read Cycle Specifications
Parameter
T
Description
Conditions
Vdda ≥ 3.3 V
Min
30.3
T/2
Typ
–
Max
–
Units
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
[50]
EMIF clock period
Tcp/2
EM_Clock pulse high
–
–
Tceld
EM_CEn low to EM_Clock high
EM_Clock high to EM_CEn high
EM_Addr valid to EM_Clock high
EM_Clock high to EM_Addr invalid
EM_OEn low to EM_Clock high
EM_Clock high to EM_OEn high
Data valid before EM_OEn high
EM_ADSCn low to EM_Clock high
EM_Clock high to EM_ADSCn high
5
–
–
Tcehd
Taddrv
Taddriv
Toeld
T/2 – 5
5
–
–
–
–
T/2 – 5
5
–
–
–
–
Toehd
Tds
T
–
–
T + 15
5
–
–
Tadscld
Tadschd
–
–
T/2 – 5
–
–
Note
50. Limited by GPIO output frequency, see Table 11-2 on page 64.
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Figure 11-53. Synchronous Write Cycle Timing
Tcp/2
EM_Clock
EM_CEn
Tceld
Tcehd
Taddriv
Taddrv
EM_Addr
Address
Tweld
Twehd
EM_WEn
EM_Data
Tdh
Tds
Data
Tadschd
Tadscld
EM_ ADSCn
Table 11-56. Synchronous Write Cycle Specifications
Parameter
T
Description
Conditions
Vdda ≥ 3.3 V
Min
Typ
–
Max
–
Units
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
[51]
EMIF clock Period
30.3
Tcp/2
EM_Clock pulse high
T/2
–
–
Tceld
EM_CEn low to EM_Clock high
EM_Clock high to EM_CEn high
EM_Addr valid to EM_Clock high
EM_Clock high to EM_Addr invalid
EM_WEn low to EM_Clock high
EM_Clock high to EM_WEn high
Data valid before EM_Clock high
Data invalid after EM_Clock high
EM_ADSCn low to EM_Clock high
EM_Clock high to EM_ADSCn high
5
–
–
Tcehd
Taddrv
Taddriv
Tweld
Twehd
Tds
T/2 – 5
–
–
5
–
–
T/2 – 5
–
–
5
–
–
T/2 – 5
–
–
5
–
–
Tdh
T
5
–
–
Tadscld
Tadschd
–
–
T/2 – 5
–
–
Note
51. Limited by GPIO output frequency, see Table 11-2 on page 64.
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11.8 PSoC System Resources
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.8.1 POR with Brown Out
For brown out detect in regulated mode, V
mode.
and V
must be ≥ 2.0 V. Brown out detect is not available in externally regulated
DDD
DDA
Table 11-57. Precise Power On Reset (PRES) with Brown Out DC Specifications
Parameter
Description
Precise POR (PPOR)
Conditions
Min
Typ
Max
Units
PRESR
PRESF
Rising trip voltage
Falling trip voltage
Factory trim
1.64
1.62
–
–
1.68
1.66
V
V
Table 11-58. Power On Reset (POR) with Brown Out AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
PRES_TR Response time
–
–
0.5
µs
11.8.2 Voltage Monitors
Table 11-59. Voltage Monitors DC Specifications
Parameter
Description
Conditions
Min
–
Typ
–
Max
–
Units
–
LVI
Trip voltage
LVI_A/D_SEL[3:0] = 0000b
LVI_A/D_SEL[3:0] = 0001b
LVI_A/D_SEL[3:0] = 0010b
LVI_A/D_SEL[3:0] = 0011b
LVI_A/D_SEL[3:0] = 0100b
LVI_A/D_SEL[3:0] = 0101b
LVI_A/D_SEL[3:0] = 0110b
LVI_A/D_SEL[3:0] = 0111b
LVI_A/D_SEL[3:0] = 1000b
LVI_A/D_SEL[3:0] = 1001b
LVI_A/D_SEL[3:0] = 1010b
LVI_A/D_SEL[3:0] = 1011b
LVI_A/D_SEL[3:0] = 1100b
LVI_A/D_SEL[3:0] = 1101b
LVI_A/D_SEL[3:0] = 1110b
LVI_A/D_SEL[3:0] = 1111b
Trip voltage
1.68
1.89
2.14
2.38
2.62
2.87
3.11
3.35
3.59
3.84
4.08
4.32
4.56
4.83
5.05
5.30
5.57
1.73
1.95
2.20
2.45
2.71
2.95
3.21
3.46
3.70
3.95
4.20
4.45
4.70
4.98
5.21
5.47
5.75
1.77
2.01
2.27
2.53
2.79
3.04
3.31
3.56
3.81
4.07
4.33
4.59
4.84
5.13
5.37
5.63
5.92
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
HVI
V
Table 11-60. Voltage Monitors AC Specifications
Parameter Description
Response time
Conditions
Min
Typ
Max
Units
–
–
1
µs
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11.8.3 Interrupt Controller
Table 11-61. Interrupt Controller AC Specifications
Parameter Description
Delay from interrupt signal input to ISR Includes worse case completion of
Conditions
Min
Typ
Max
Units
–
–
25
Tcy CPU
code execution from ISR code
longest instruction DIV with 6
cycles
11.8.4 JTAG Interface
Table 11-62. JTAG Interface AC Specifications[52]
Parameter
f_TCK
Description
TCK frequency
Conditions
Min
Typ
–
Max
Units
MHz
MHz
ns
[53]
3.3 V ≤ V
≤ 5 V
–
–
14
DDD
[53]
1.71 V ≤ V
< 3.3 V
–
7
DDD
T_TDI_setup
TDI setup before TCK high
(T/10) – 5
T/4
–
–
–
T_TMS_setup TMS setup before TCK high
–
T_TDI_hold
T_TDO_valid
T_TDO_hold
TDI, TMS hold after TCK high
TCK low to TDO valid
T = 1/f_TCK
T = 1/f_TCK
T = 1/f_TCK
T/4
–
–
2T/5
T/4
–
–
TDO hold after TCK high
TCK to device outputs valid
–
–
–
–
2T/5
11.8.5 SWD Interface
Table 11-63. SWD Interface AC Specifications[52]
Parameter
Description
SWDCLK frequency
Conditions
Min
–
Typ
–
Max
Units
MHz
MHz
MHz
[54]
f_SWDCK
3.3 V ≤ V
1.71 V ≤ V
1.71 V ≤ V
≤ 5 V
14
DDD
[54]
< 3.3 V
–
–
7
DDD
[54]
< 3.3 V,
–
–
5.5
DDD
SWD over USBIO pins
T_SWDI_setup SWDIO input setup before SWDCK high T = 1/f_SWDCK
T/4
T/4
–
–
–
–
–
–
–
–
–
–
–
–
T_SWDI_hold SWDIO input hold after SWDCK high
T_SWDO_valid SWDCK low to SWDIO output valid
T = 1/f_SWDCK
T = 1/f_SWDCK
2T/5
T/4
T_SWDO_hold SWDIO output hold after SWDCK high T = 1/f_SWDCK
11.8.6 SWV Interface
Table 11-64. SWV Interface AC Specifications[52]
Parameter
Description
Conditions
Min
Typ
Max
Units
SWV mode SWV bit rate
–
–
33
Mbit
Notes
52. Based on device characterization (Not production tested).
53. f_TCK must also be no more than 1/3 CPU clock frequency.
54. f_SWDCK must also be no more than 1/3 CPU clock frequency.
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11.9 Clocking
Specifications are valid for –40 °C ≤ T ≤ 85 °C and T ≤ 100 °C, except where noted. Specifications are valid for 1.71 V to 5.5 V,
A
J
except where noted.
11.9.1 32 kHz External Crystal
Table 11-65. 32 kHz External Crystal DC Specifications[55]
Parameter Description
Operating current
Conditions
Min
–
Typ
0.25
6
Max
1.0
–
Units
µA
I
Low-power mode
CC
CL
DL
External crystal capacitance
Drive level
–
pF
–
–
1
µW
Table 11-66. 32 kHz External Crystal AC Specifications
Parameter
Description
Conditions
Min
–
Typ
32.768
1
Max
–
Units
kHz
s
F
Frequency
T
Startup time
High power mode
–
–
ON
11.9.2 Internal Main Oscillator
Table 11-67. IMO DC Specifications
Parameter
Description
Supply current
Conditions
Min
Typ
Max
Units
62.6 MHz
–
–
–
–
–
–
–
–
–
–
–
–
–
–
600
500
500
300
200
180
150
µA
µA
µA
µA
µA
µA
µA
48 MHz
24 MHz – USB mode
24 MHz – non USB mode
12 MHz
With oscillator locking to USB bus
6 MHz
3 MHz
Table 11-68. IMO AC Specifications
Parameter
Description
Conditions
Min
Typ
Max
Units
IMO frequency stability (with factory trim)
62.6 MHz
–7
–5
–
–
–
–
–
–
–
–
7
5
%
%
%
%
%
%
%
µs
48 MHz
24 MHz – Non USB mode
24 MHz – USB mode
12 MHz
–4
4
F
IMO
With oscillator locking to USB bus
–0.25
–3
0.25
3
6 MHz
–2
2
3 MHz
–1
1
[55]
Startup time
Fromenable(duringnormalsystem
operation) or wakeup from
low-power state
–
12
Note
55. Based on device characterization (Not production tested).
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Table 11-68. IMO AC Specifications (continued)
Parameter
Description
Conditions
Min
Typ
Max
Units
[56]
Jitter (peak to peak)
Jp–p
F = 24 MHz
F = 3 MHz
–
–
0.9
1.6
–
–
ns
ns
[56]
Jitter (long term)
F = 24 MHz
F = 3 MHz
Jperiod
–
–
0.9
12
–
–
ns
ns
11.9.3 Internal Low Speed Oscillator
Table 11-69. ILO DC Specifications
Parameter
Description
Operating current
Conditions
= 1 kHz
Min
–
Typ
0.3
1.0
1.0
2.0
Max
1.7
2.6
2.6
15
Units
µA
F
F
F
OUT
OUT
OUT
I
= 33 kHz
–
µA
CC
= 100 kHz
–
µA
Leakage current
Power down mode
–
nA
Table 11-70. ILO AC Specifications
Parameter
Description
Startup time, all frequencies
ILO frequencies (trimmed)
100 kHz
Conditions
Turbo mode
Min
Typ
Max
Units
–
–
2
ms
45
100
1
200
2
kHz
kHz
1 kHz
0.5
F
ILO
ILO frequencies (untrimmed)
100 kHz
30
100
1
300
3.5
kHz
kHz
1 kHz
0.3
11.9.4 External Crystal Oscillator
Table 11-71. ECO AC Specifications
Parameter
Description
Conditions
Conditions
Min
Typ
Max
Units
F
Crystal frequency range
4
–
33
MHz
11.9.5 External Clock Reference
Table 11-72. External Clock Reference AC Specifications[56]
Parameter
Description
External frequency range
Input duty cycle range
Input edge rate
Min
Typ
Max
33
70
–
Units
MHz
%
0
–
50
–
Measured at V
/2
30
0.1
DDIO
V
to V
V/ns
IL
IH
Note
56. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
11.9.6 Phase-Locked Loop
Table 11-73. PLL DC Specifications
Parameter
Description
PLL operating current
Conditions
Min
–
Typ
400
200
Max
–
Units
µA
I
In = 3 MHz, Out = 67 MHz
In = 3 MHz, Out = 24 MHz
DD
–
–
µA
Table 11-74. PLL AC Specifications
Parameter
Description
Conditions
Min
1
Typ
–
Max
48
Units
MHz
MHz
MHz
µs
[57]
Fpllin
PLL input frequency
[58]
PLL intermediate frequency
Output of prescaler
1
–
3
[57]
Fpllout
PLL output frequency
24
–
–
67
Lock time at startup
–
250
250
[59]
Jperiod-rms Jitter (rms)
–
–
ps
Notes
57. This specification is guaranteed by testing the PLL across the specified range using the IMO as the source for the PLL.
58. PLL input divider, Q, must be set so that the input frequency is divided down to the intermediate frequency range. Value for Q ranges from 1 to 16.
59. Based on device characterization (Not production tested).
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
12. Ordering Information
In addition to the features listed in Table 12-1, every CY8C36 device includes: a precision on-chip voltage reference, precision
2
oscillators, flash, ECC, DMA, a fixed function I C, 4 KB trace RAM, JTAG/SWD programming and debug, external memory interface,
and more. In addition to these features, the flexible UDBs and analog subsection support a wide range of peripherals. To assist you
in selecting the ideal part, PSoC Creator makes a part recommendation after you choose the components required by your application.
All CY8C36 derivatives incorporate device and flash security in user-selectable security levels; see the TRM for details.
Table 12-1. CY8C36 Family with Single Cycle 8051
[62]
MCU Core
Analog
Digital
I/O
Part Number
Package
JTAG ID[63]
32 KB Flash
CY8C3665AXI-010 67 32
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
2
4
4
2
2
4
4
2
2
4
4
2
2
2
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
4
70 62
46 38
29 25
29 25
72 62
48 38
31 25
31 25
70 62
46 38
29 25
29 25
72 62
48 38
31 25
31 25
29 25
8
8
4
4
8
8
4
4
8
8
4
4
8
8
4
4
4
0
0
0
0
2
2
2
2
0
0
0
0
2
2
2
2
0
100-pin TQFP 0×0E00A069
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
✔
CY8C3665LTI-009
CY8C3665LTI-001
67 32
67 32
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E009069
0×0E001069
0×0E008069
–
–
CY8C3665PVI-008 67 32
CY8C3665AXI-016 67 32
–
–
✔
✔
✔
✔
100-pin TQFP 0×0E010069
–
CY8C3665LTI-044
CY8C3665LTI-004
67 32
67 32
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E02C069
0×0E004069
0×0E031069
–
–
CY8C3665PVI-049 67 32
CY8C3665AXI-013 67 32
–
✔
✔
✔
✔
✔
✔
✔
✔
✔
100-pin TQFP 0×0E00D069
–
–
CY8C3665LTI-043
CY8C3665LTI-002
67 32
67 32
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E02B069
0×0E002069
0×0E003069
–
CY8C3665PVI-003 67 32
CY8C3665AXI-017 67 32
–
✔
✔
✔
✔
100-pin TQFP 0×0E011069
CY8C3665LTI-048
CY8C3665LTI-006
67 32
67 32
68-pin QFN
48-pin QFN
48-pin SSOP
48-pin SSOP
0×0E030069
0×0E006069
0×0E007069
0×0E050069
CY8C3665PVI-007 67 32
CY8C3665PVI-080 67 32
64 KB Flash
–
CY8C3666AXI-052 67 64
8
8
8
8
8
8
8
8
8
8
2
2
2
2
2
2
2
2
2
2
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
2
4
4
2
2
4
4
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
24
24
24
24
24
24
24
24
24
24
4
4
4
4
4
4
4
4
4
4
70 62
46 38
29 25
29 25
72 62
48 38
31 25
31 25
70 62
46 38
8
8
4
4
8
8
4
4
8
8
0
0
0
0
2
2
2
2
0
0
100-pin TQFP 0×0E034069
–
–
–
–
–
–
–
–
✔
✔
–
–
–
–
–
–
–
-
CY8C3666LTI-042
CY8C3666LTI-011
67 64
67 64
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E02A069
0×0E00B069
0×0E029069
–
CY8C3666PVI-041 67 64
CY8C3666AXI-034 67 64
–
✔
✔
✔
✔
100-pin TQFP 0×0E022069
CY8C3666LTI-025
CY8C3666LTI-046
67 64
67 64
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E019069
0×0E02E069
0×0E016069
–
–
–
–
CY8C3666PVI-022 67 64
CY8C3666AXI-031 67 64
100-pin TQFP 0×0E01F069
68-pin QFN 0×0E01C069
–
–
CY8C3666LTI-028
67 64
Notes
60. Analog blocks support a wide variety of functionality including TIA, PGA, and mixers. See the Example Peripherals on page 35 for more information on how analog
blocks can be used.
61. UDBs support a wide variety of functionality including SPI, LIN, UART, timer, counter, PWM, PRS, and others. Individual functions may use a fraction of a UDB or
multiple UDBs. Multiple functions can share a single UDB. See the Example Peripherals on page 35 for more information on how UDBs can be used.
62. The I/O Count includes all types of digital I/O: GPIO, SIO, and the two USB I/O. See the I/O System and Routing on page 28 for details on the functionality of each of
these types of I/O.
63. The JTAG ID has three major fields. The most significant nibble (left digit) is the version, followed by a 2 byte part number and a 3 nibble manufacturer ID.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
Table 12-1. CY8C36 Family with Single Cycle 8051 (continued)
[66]
MCU Core
Analog
Digital
I/O
Part Number
Package
JTAG ID[67]
CY8C3666LTI-012
67 64
8
8
8
8
8
8
8
2
2
2
2
2
2
2
✔
✔
✔
✔
✔
✔
✔
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
12-bit Del-Sig
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
2
2
4
4
2
2
4
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
✔
24
24
24
24
24
24
24
4
29 25
29 25
72 62
48 38
31 25
31 25
70 62
4
4
8
8
4
4
8
0
0
2
2
2
2
0
48-pin QFN
0×0E00C069
0×0E01A069
–
–
–
–
–
–
–
–
✔
CY8C3666PVI-026 67 64
CY8C3666AXI-036 67 64
4
4
4
4
4
4
48-pin SSOP
✔
✔
✔
✔
100-pin TQFP 0×0E024069
CY8C3666LTI-027
CY8C3666LTI-050
67 64
67 64
68-pin QFN
48-pin QFN
48-pin SSOP
0×0E01B069
0×0E032069
0×0E039069
CY8C3666PVI-057 67 64
CY8C3666AXI-037 67 64
100-pin TQFP 0×0E025069
–
Notes
64. Analog blocks support a wide variety of functionality including TIA, PGA, and mixers. See the Example Peripherals on page 35 for more information on how analog
blocks can be used.
65. UDBs support a wide variety of functionality including SPI, LIN, UART, timer, counter, PWM, PRS, and others. Individual functions may use a fraction of a UDB or
multiple UDBs. Multiple functions can share a single UDB. See the Example Peripherals on page 35 for more information on how UDBs can be used.
66. The I/O Count includes all types of digital I/O: GPIO, SIO, and the two USB I/O. See the I/O System and Routing on page 28 for details on the functionality of each
of these types of I/O.
67. The JTAG ID has three major fields. The most significant nibble (left digit) is the version, followed by a 2 byte part number and a 3 nibble manufacturer ID.
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
12.1 Part Numbering Conventions
PSoC 3 devices follow the part numbering convention described here. All fields are single character alphanumeric (0, 1, 2, …, 9, A,
B, …, Z) unless stated otherwise.
CY8Cabcdefg-xxx
a: Architecture
3: PSoC 3
5: PSoC 5
ef: Package code
Two character alphanumeric
AX: TQFP
LT: QFN
PV: SSOP
b: Family group within architecture
4: CY8C34 family
g: Temperature range
C: commercial
I: industrial
6: CY8C36 family
8: CY8C38 family
c: Speed grade
4: 48 MHz
A: automotive
xxx: Peripheral set
6: 67 MHz
Three character numeric
No meaning is associated with these three characters.
d: Flash capacity
4: 16 KB
5: 32 KB
6: 64 KB
CY8C
3
6
6
6
P V
I
-
x x x
Example
Cypress Prefix
Architecture
3: PSoC 3
6: CY8C36 Family
6: 67 MHz
6: 64 KB
Family Group within Architecture
Speed Grade
Flash Capacity
PV: SSOP
Package Code
I: Industrial
Temperature Range
Peripheral Set
All devices in the PSoC 3 CY8C36 family comply to RoHS-6 specifications, demonstrating the commitment by Cypress to lead-free
products. Lead (Pb) is an alloying element in solders that has resulted in environmental concerns due to potential toxicity. Cypress
uses nickel-palladium-gold (NiPdAu) technology for the majority of leadframe-based packages.
A high level review of the Cypress Pb-free position is available on our website. Specific package information is also available. Package
Material Declaration Datasheets (PMDDs) identify all substances contained within Cypress packages. PMDDs also confirm the
absence of many banned substances. The information in the PMDDs will help Cypress customers plan for recycling or other “end of
life” requirements.
Document Number: 001-53413 Rev. *I
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PRELIMINARY
PSoC® 3: CY8C36 Family Datasheet
13. Packaging
Table 13-1. Package Characteristics
Parameter
Description
Conditions
Min
–40
–40
–
Typ
25.00
–
Max
85
100
–
Units
°C
T
Operating ambient temperature
Operating junction temperature
Package θJA (48-pin SSOP)
Package θJA (48-pin QFN)
Package θJA (68-pin QFN)
Package θJA (100-pin TQFP)
Package θJC (48-pin SSOP)
Package θJC (48-pin QFN)
Package θJC (68-pin QFN)
Package θJC (100-pin TQFP)
A
T
°C
J
Tja
Tja
Tja
Tja
Tjc
Tjc
Tjc
Tjc
45.16
15.94
11.72
30.52
27.84
7.05
6.32
9.04
–
°C/Watt
°C/Watt
°C/Watt
°C/Watt
°C/Watt
°C/Watt
°C/Watt
°C/Watt
°C
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Pb-free assemblies (20s to 40s) –
Sn-Ag-Cu solder paste reflow
temperature
235
245
Pb-free assemblies (20s to 40s) –
Sn-Pb solder paste reflow
temperature
205
–
220
°C
Table 13-2. Package Moisture Sensitivity Level (MSL), IPC/JEDEC J-STD-2
Package
48-pin SSOP
48-pin QFN
68-pin QFN
100-pin TQFP
MSL
MSL 1
MSL 3
MSL 3
MSL 3
Figure 13-1. 48-pin (300 mil) SSOP Package Outline
.020
1
24
0.395
0.420
0.292
0.299
DIMENSIONS IN INCHES MIN.
MAX.
25
48
0.620
0.630
0.005
0.010
SEATING PLANE
0.004
.010
0.088
0.092
0.095
0.110
GAUGE PLANE
0.024
0.040
0.025
BSC
0°-8°
0.008
0.016
0.008
51-85061-*D
0.0135
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Figure 13-2. 48-pin QFN Package Outline
SIDE VIEW
TOP VIEW
BOTTOM VIEW
1.00 MAX.
0.05 MAX.
7.00±0.10
5.6±0.10
PIN 1 ID
0.23±0.05
0.20 REF.
48
37
37
48
36
36
1
1
PIN 1 DOT
LASER MARK
SOLDERABLE
EXPOSED
PAD
7.00±0.10
5.55 REF
5.6±0.10
12
25
12
25
0.40±0.10
24
13
13
24
0.50±0.10
5.55 REF
0.08
C
NOTES:
1. HATCH AREA IS SOLDERABLE EXPOSED METAL.
2. REFERENCE JEDEC#: MO-220
3. PACKAGE WEIGHT: 0.13g
4. ALL DIMENSIONS ARE IN MM [MIN/MAX]
5. PACKAGE CODE
001- 45616 *B
PART #
LT48D
DESCRIPTION
LEAD FREE
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Figure 13-3. 68-pin QFN 8×8 with 0.4 mm Pitch Package Outline (Sawn Version)
TOP VIEW
SIDE VIEW
BOTTOM VIEW
0.900±0.100
5.7±0.10
8.000±0.100
0.200 REF
PIN1 ID
R 0.20
0.400 PITCH
5
2
6
8
5
2
6
8
1
5
1
5
1
1
PIN 1 DOT
SOLDERABLE
EXPOSED
PAD
LASER MARK
5.7±0.10
0.20±0.05
1
7
3
5
1
7
3
0.400±0.1005
3
4
1
8
0.05 MAX
3
4
1
8
6.40 REF
NOTES:
1. HATCH AREA IS SOLDERABLE EXPOSED METAL.
001-09618 *C
2. REFERENCE JEDEC#: MO-220
3. PACKAGE WEIGHT: 0.17g
4. ALL DIMENSIONS ARE IN MILLIMETERS
Figure 13-4. 100-pin TQFP (14 × 14 × 1.4 mm) Package Outline
NOTE:
16.00±0.25 SQ
1. JEDEC STD REF MS-026
14.00±0.05 SQ
2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH
MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.0098 in (0.25 mm) PER SIDE
BODY LENGTH DIMENSIONS ARE MAX PLASTIC BODY SIZE INCLUDING MOLD MISMATCH
100
76
1
75
3. DIMENSIONS IN MILLIMETERS
R 0.08 MIN.
0.20 MAX.
0° MIN.
STAND-OFF
0.05 MIN.
0.15 MAX.
0.25
GAUGE PLANE
R 0.08 MIN.
0.20 MAX.
0°-7°
0.50
TYP.
0 0 12.0000
0.60±0.15
A
DETAIL
25
51
26
50
NOTE: PKG. CAN HAVE
OR
12°±1°
(8X)
SEATING PLANE
1.60 MAX.
TOP LEFT CORNER CHAMFER
4 CORNERS CHAMFER
1.40±0.05
0.08
0.20 MAX.
A
SEE DETAIL
51-85048-*D
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 14-1. Acronyms Used in this Document (continued)
14. Acronyms
Acronym
ETM
Description
embedded trace macrocell
Table 14-1. Acronyms Used in this Document
Acronym Description
abus
FIR
finite impulse response, see also IIR
flash patch and breakpoint
full-speed
analog local bus
FPB
FS
ADC
AG
analog-to-digital converter
analog global
GPIO
general-purpose input/output, applies to a PSoC
pin
AHB
AMBA (advanced microcontroller bus archi-
tecture) high-performance bus, an ARM data
transfer bus
HVI
IC
high-voltage interrupt, see also LVI, LVD
integrated circuit
ALU
arithmetic logic unit
AMUXBUS analog multiplexer bus
IDAC
IDE
current DAC, see also DAC, VDAC
integrated development environment
API
application programming interface
2
APSR
application program status register
advanced RISC machine, a CPU architecture
automatic thump mode
I C, or IIC
Inter-Integrated Circuit, a communications
protocol
®
ARM
IIR
infinite impulse response, see also FIR
internal low-speed oscillator, see also IMO
internal main oscillator, see also ILO
integral nonlinearity, see also DNL
input/output, see also GPIO, DIO, SIO, USBIO
initial power-on reset
ATM
BW
ILO
IMO
INL
bandwidth
CAN
Controller Area Network, a communications
protocol
CMRR
CPU
common-mode rejection ratio
central processing unit
I/O
IPOR
IPSR
IRQ
ITM
LCD
LIN
CRC
cyclic redundancy check, an error-checking
protocol
interrupt program status register
interrupt request
DAC
DFB
DIO
digital-to-analog converter, see also IDAC, VDAC
digital filter block
instrumentation trace macrocell
liquid crystal display
digital input/output, GPIO with only digital
capabilities, no analog. See GPIO.
Local Interconnect Network, a communications
protocol.
DMA
DNL
direct memory access, see also TD
differential nonlinearity, see also INL
do not use
LR
link register
LUT
LVD
LVI
lookup table
DNU
DR
low-voltage detect, see also LVI
low-voltage interrupt, see also HVI
low-voltage transistor-transistor logic
multiply-accumulate
port write data registers
digital logic reset
DRES
DSI
LVTTL
MAC
MCU
MISO
NC
digital system interconnect
data watchpoint and trace
error correcting code
DWT
ECC
ECO
EEPROM
microcontroller unit
master-in slave-out
external crystal oscillator
no connect
electrically erasable programmable read-only
memory
NMI
nonmaskable interrupt
non-return-to-zero
NRZ
NVIC
NVL
opamp
PAL
EMI
electromagnetic interference
external memory interface
end of conversion
nested vectored interrupt controller
nonvolatile latch, see also WOL
operational amplifier
EMIF
EOC
EOF
EPSR
ESD
end of frame
programmable array logic, see also PLD
program counter
execution program status register
electrostatic discharge
PC
PCB
printed circuit board
Document Number: 001-53413 Rev. *I
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PSoC® 3: CY8C36 Family Datasheet
Table 14-1. Acronyms Used in this Document (continued)
Table 14-1. Acronyms Used in this Document (continued)
Acronym
PGA
Description
programmable gain amplifier
peripheral hub
Acronym
SOC
Description
start of conversion
start of frame
PHUB
PHY
PICU
PLA
SOF
SPI
physical layer
Serial Peripheral Interface, a communications
protocol
port interrupt control unit
programmable logic array
programmable logic device, see also PAL
phase-locked loop
SR
slew rate
SRAM
SRES
SWD
SWV
TD
static random access memory
software reset
PLD
PLL
serial wire debug, a test protocol
single-wire viewer
PMDD
POR
PRES
PRS
PS
package material declaration datasheet
power-on reset
transaction descriptor, see also DMA
total harmonic distortion
transimpedance amplifier
technical reference manual
transistor-transistor logic
transmit
precise power-on reset
pseudo random sequence
port read data register
THD
TIA
TRM
TTL
®
PSoC
PSRR
PWM
RAM
RISC
RMS
RTC
RTL
Programmable System-on-Chip™
power supply rejection ratio
pulse-width modulator
TX
UART
Universal Asynchronous Transmitter Receiver, a
communications protocol
random-access memory
reduced-instruction-set computing
root-mean-square
UDB
universal digital block
Universal Serial Bus
USB
real-time clock
USBIO
USB input/output, PSoC pins used to connect to
a USB port
register transfer language
remote transmission request
receive
RTR
RX
VDAC
WDT
voltage DAC, see also DAC, IDAC
watchdog timer
SAR
SC/CT
SCL
successive approximation register
switched capacitor/continuous time
WOL
write once latch, see also NVL
watchdog timer reset
external reset I/O pin
crystal
WRES
XRES
XTAL
2
I C serial clock
2
SDA
S/H
I C serial data
sample and hold
15. Reference Documents
SINAD
SIO
signal to noise and distortion ratio
PSoC® 3, PSoC® 5 Architecture TRM
PSoC® 3 Registers TRM
special input/output, GPIO with advanced
features. See GPIO.
Document Number: 001-53413 Rev. *I
Page 107 of 112
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PSoC® 3: CY8C36 Family Datasheet
16. Document Conventions
16.1 Units of Measure
Table 16-1. Units of Measure
Symbol
°C
Unit of Measure
degrees Celsius
decibels
dB
fF
femtofarads
hertz
Hz
KB
kbps
Khr
kHz
kΩ
1024 bytes
kilobits per second
kilohours
kilohertz
kilohms
ksps
LSB
Mbps
MHz
MΩ
Msps
µA
kilosamples per second
least significant bit
megabits per second
megahertz
megaohms
megasamples per second
microamperes
microfarads
microhenrys
microseconds
microvolts
µF
µH
µs
µV
µW
mA
ms
mV
nA
microwatts
milliamperes
milliseconds
millivolts
nanoamperes
nanoseconds
nanovolts
ns
nV
Ω
ohms
pF
picofarads
ppm
ps
parts per million
picoseconds
seconds
s
sps
sqrtHz
V
samples per second
square root of hertz
volts
Document Number: 001-53413 Rev. *I
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17. Revision History
Description Title: PSoC® 3: CY8C36 Family Datasheet Programmable System-on-Chip (PSoC®)
Document Number: 001-53413
Submission Orig. of
Rev.
ECN No.
Description of Change
Date
Change
**
2714854
2758970
06/04/09
09/02/09
PVKV
New datasheet
*A
MKEA
Updated Part Numbering Conventions
Added Section 11.7.5 (EMIF Figures and Tables)
Updated GPIO and SIO AC specifications
Updated XRES Pin Description and Xdata Address Map specifications
Updated DFB and Comparator specifications
Updated PHUB features section and RTC in sleep mode
Updated IDAC and VDAC DC and Analog Global specifications
Updated USBIO AC and Delta Sigma ADC specifications
Updated PPOR and Voltage Monitors DC specifications
Updated Drive Mode diagram
Added 48-QFN Information
Updated other electrical specifications
*B
2824546
12/09/09
MKEA
Updated I2C section to reflect 1 Mbps. Updated Table 11-6 and 11-7 (Boost AC
and DC specs); also added Shottky Diode specs. Changed current for
sleep/hibernate mode to include SIO; Added footnote to analog global specs.
Updated Figures 1-1, 6-2, 7-14, and 8-1. Updated Table 6-2 and Table 6-3
(Hibernate and Sleep rows) and Power Modes section. Updated GPIO and SIO
AC specifications. Updated Gain error in IDAC and VDAC specifications.
Updated description of V
spec in Table 11-1 and removed GPIO Clamp
DDA
Current parameter. Updated number of UDBs on page 1.
Moved FILO from ILO DC to AC table.
Added PCB Layout and PCB Schematic diagrams.
Updated Fgpioout spec (Table 11-9). Added duty cycle frequency in PLL AC
spec table. Added note for Sleep and Hibernate modes and Active Mode specs
in Table 11-2. Linked URL in Section 10.3 to PSoC Creator site.
Updated Ja and Jc values in Table 13-1. Updated Single Sample Mode and Fast
FIR Mode sections. Updated Input Resistance specification in Del-Sig ADC
table. Added Tio_init parameter. Updated PGA and UGB AC Specs. Removed
SPC ADC. Updated Boost Converter section.
Addedsection'SIOasComparator';updatedHysteresisspec(differentialmode)
in Table 11-10.
Updated V
condition and deleted Vstart parameter in Table 11-6.
BAT
Added 'Bytes' column for Tables 4-1 to 4-5.
*C
2873322
02/04/10
MKEA
Changed maximum value of PPOR_TR to '1'. Updated V
specification.
BIAS
Updated PCB Schematic. Updated Figure 8-1 and Figure 6-3. Updated Interrupt
Vector table, Updated Sales links. Updated JTAG and SWD specifications.
Removed Jp-p and Jperiod from ECO AC Spec table. Added note on sleep timer
in Table 11-2. Updated ILO AC and DC specifications. Added Resolution
parameter in VDAC and IDAC tables. Updated I
typical and maximum
OUT
values. Changed Temperature Sensor range to –40 °C to +85 °C. Removed
Latchup specification from Table 11-1.
Document Number: 001-53413 Rev. *I
Page 109 of 112
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Description Title: PSoC® 3: CY8C36 Family Datasheet Programmable System-on-Chip (PSoC®)
Document Number: 001-53413
*D
2903576
04/01/10
MKEA
Updated Vb pin in PCB Schematic
Updated Tstartup parameter in AC Specifications table
Added Load regulation and Line regulation parameters to Inductive Boost
Regulator DC Specifications table
Updated I parameter in LCD Direct Drive DC Specs table
CC
Updated I
parameter in LCD Direct Drive DC Specs table
OUT
Updated Table 6-2 and Table 6-3
Added bullets on CapSense in page 1; added CapSense column in Section 12
Removed some references to footnote [1]
Changed INC_Rn cycles from 3 to 2 (Table 4-1)
Added footnote in PLL AC Specification table
Added PLL intermediate frequency row with footnote in PLL AC Specs table
Added UDBs subsection under 11.6 Digital Peripherals
Updated Figure 2-6 (PCB Layout)
Updated Pin Descriptions section and modified Figures 6-6, 6-8, 6-9
Updated LVD in Tables 6-2 and 6-3; modified Low-power modes bullet in page 1
Added note to Figures 2-5 and 6-2; Updated Figure 6-2 to add capacitors for
V
and V
pins.
from 0.9 to 0.1%
DDA
DDD
Changed V
REF
Updated boost converter section (6.2.2)
Updated Tstartup values in Table 11-3.
Removed IPOR rows from Table 11-68. Updated 6.3.1.1, Power Voltage Level
Monitors.
Updated section 5.2 and Table 11-2 to correct suggestion of execution from
flash.
Updated V
specs in Table 11-21.
REF
Updated IDAC uncompensated gain error in Table 11-25.
Updated Delay from Interrupt signal input to ISR code execution from ISR code
in Table11- 72. Removed other line in table.
Added sentence to last paragraph of section 6.1.1.3.
Updated T
, high and low-power modes, in Table 11-24.
RESP
Updated f_TCK values in Table 11-73 and f_SWDCK values in Table 11-74.
Updated SNR condition in Table 11-20.
Corrected unit of measurement in Table 11-21.
Updated sleep wakeup time in Table 6-3 and Tsleep in Table 11-3.
Added 1.71 V <= V
< 3.3 V, SWD over USBIO pins value to Table 11-74.
DDD
Removed mention of hibernate reset (HRES) from page 1 features, Table 6-3,
Section 6.2.1.4, Section 6.3, and Section 6.3.1.1. Change PPOR/PRES to TBDs
in Section 6.3.1.1, Section 6.4.1.6 (changed PPOR to reset), Table 11-3
(changed PPOR to PRES), Table 11-68 (changed title, values TBD), and Table
11-69 (changed PPOR_TR to PRES_TR).
Added sentence saying that LVD
circuits can generate a reset to Section 6.3.1.1.
Changed I values on page 1, page 5, and Table 11-2.
DD
Changed resume time value in Section 6.2.1.3.
Changed ESD HBM value in Table 11-1.
Changed sample rate row in Table 11-20.
Removed V
= 1.65 V rows and changed BWag value in Table 11-22.
values and changed CMRR value in Table 11-23.
DDA
Changed V
IOFF
Changed INL max value in Table 11-27.
Added max value to the Quiescent current specs in Tables 11-29 and 11-31.
Changed occurrences of “Block” to “Row” and deleted the “ECC not included”
footnote in Table 11-57.
Changed max response time value in Tables 11-69 and 11-71.
Changed the Startup time in Table 11-79.
Added condition to intermediate frequency row in Table 11-85.
Added row to Table 11-69.
Added brown out note to Section 11.8.1.
Document Number: 001-53413 Rev. *I
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Description Title: PSoC® 3: CY8C36 Family Datasheet Programmable System-on-Chip (PSoC®)
Document Number: 001-53413
*E
2938381
05/27/10
MKEA
Replaced V
with V
in USBIO diagram and specification tables, added
DDIO
DDD
text in USBIO section of Electrical Specifications.
Added Table 13-2 (Package MSL)
Modified Tstorag condition and changed max spec to 100
Added bullet (Pass) under ALU (section 7.2.2.2)
Added figures for kHzECO and MHzECO in the External Oscillator section
Updated Figure 6-1(Clocking Subsystem diagram)
Removed CPUCLK_DIV in table 5-2, Deleted Clock Divider SFR subsection
Updated PSoC Creator Framework image
Updated SIO DC Specifications (V and V parameters)
IH
IL
Updated bullets in Clocking System and Clocking Distribution sections
Updated Figure 8-2
Updated PCB Layout and Schematic, updated as per MTRB review comments
Updated Table 6-3 (power changed to current)
In 32kHZ EC DC Specifications table, changed I Max to 0.25
CC
In IMO DC Specifications table, updated Supply Current values
Updated GPIO DC Specs table
*F
2958674
2989685
06/22/10
08/04/10
SHEA
MKEA
Minor ECN to post datasheet to external website
*G
Added USBIO 22 ohm DP and DM resistors to Simplified Block Diagram
Added to Table 6-6 a footnote and references to same.
Added sentences to the resistive pull-up and pull-down description bullets.
Added sentence to Section 6.4.11, Adjustable Output Level.
Updated section 5.5 External Memory Interface
Updated Table 11-73 JTAG Interface AC Specifications
Updated Table 11-74 SWD Interface AC Specifications
Updated style changes as per the new template.
*H
*I
3078568
11/04/10
MKEA
MKEA
Updated “Current Digital-to-analog Converter(IDAC)” on page 76
Updated “Voltage Digital to Analog Converter (VDAC)” on page 80
Updated “DC Specifications” on page 59
Updated “Voltage Reference Specifications” on page 75
3107314 12/10/2010
Updated delta-sigma tables and graphs.
Updated Flash AC specs
Formatted table 11.2.
Updated interrupt controller table
Updated transimpedance amplifier section
Updated SIO DC specs table
Updated Voltage Monitors DC Specifications table
Updated LCD Direct Drive DC specs table
Replaced the Discrete Time Mixer and Continuous Time Mixer tables with Mixer
DC and AC specs tables
Updated ESD
value.
HBM
Updated IDAC and VDAC sections
Removed ESO parts from ordering information
Changed USBIO pins from NC to DNU and removed redundant USBIO pin
description notes
Updated POR with brown out DC and AC specs
Updated PGA AC specs
Updated 32 kHz External Crystal DC Specifications
Updated opamp AC specs
Updated XRES IO specs
Updated Inductive boost regulator section
Delta sigma ADC spec updates
Updated comparator section
Removed buzz mode from Power Mode Transition diagram
Updated opamp DC and AC spec tables
Updated PGA DC table
Document Number: 001-53413 Rev. *I
Page 111 of 112
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PSoC® 3: CY8C36 Family Datasheet
18. Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturers’ representatives, and distributors. To find the office
closest to you, visit us at Cypress Locations.
Products
PSoC Solutions
Automotive
cypress.com/go/automotive
cypress.com/go/clocks
cypress.com/go/interface
cypress.com/go/powerpsoc
cypress.com/go/plc
psoc.cypress.com/solutions
PSoC 1 | PSoC 3 | PSoC 5
Clocks & Buffers
Interface
Lighting & Power Control
Memory
cypress.com/go/memory
cypress.com/go/image
cypress.com/go/psoc
Optical & Image Sensing
PSoC
Touch Sensing
USB Controllers
Wireless/RF
cypress.com/go/touch
cypress.com/go/USB
cypress.com/go/wireless
© Cypress Semiconductor Corporation, 2009-2010. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of
any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for
medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as
critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 001-53413 Rev. *I
Revised December 10, 2010
Page 112 of 112
CapSense®, PSoC®3, PSoC®5, and PSoC® Creator™ are trademarks and PSoC® is a registered trademark of Cypress Semiconductor Corp. All other trademarks or
registered trademarks referenced herein are property of the respective corporations.
Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components
in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.
ARM is a registered trademark, and Keil, and RealView are trademarks, of ARM Limited. All products and company names mentioned in this document may be the trademarks
of their respective holders.
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