PMS154B-S14 [PADAUK]
8bit OTP Type IO Controller;型号: | PMS154B-S14 |
厂家: | PADAUK Technology |
描述: | 8bit OTP Type IO Controller |
文件: | 总85页 (文件大小:1819K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PMS154B
8bit OTP Type IO Controller
Datasheet
Version 1.02 – Nov. 27, 2018
Copyright 2018 by PADAUK Technology Co., Ltd., all rights reserved.
6F-6, No.1, Sec. 3, Gongdao 5th Rd., Hsinchu City 30069, Taiwan, R.O.C.
TEL: 886-3-572-8688 www.padauk.com.tw
PMS154B
8bit IO-Type Controller
IMPORTANT NOTICE
PADAUK Technology reserves the right to make changes to its products or to terminate
production of its products at any time without notice. Customers are strongly
recommended to contact PADAUK Technology for the latest information and verify
whether the information is correct and complete before placing orders.
PADAUK Technology products are not warranted to be suitable for use in life-support
applications or other critical applications. PADAUK Technology assumes no liability for
such applications. Critical applications include, but are not limited to, those that may
involve potential risks of death, personal injury, fire or severe property damage.
PADAUK Technology assumes no responsibility for any issue caused by a customer’s
product design. Customers should design and verify their products within the ranges
guaranteed by PADAUK Technology. In order to minimize the risks in customers’
products, customers should design a product with adequate operating safeguards.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 2 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Table of Contents
1. Features...............................................................................................................................9
1.1.
1.2.
1.3.
1.4.
Special Features ...................................................................................................................9
System Features...................................................................................................................9
CPU Features .......................................................................................................................9
Package Information .............................................................................................................9
2. General Description and Block Diagram ........................................................................10
3. Pin Definition and Functional Description......................................................................11
4. Device Characteristics .....................................................................................................16
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
DC/AC Characteristics ........................................................................................................16
Absolute Maximum Ratings.................................................................................................17
Typical IHRC Frequency vs. VDD (calibrated to 16MHz).....................................................18
Typical ILRC Frequency vs. VDD........................................................................................18
Typical IHRC Frequency vs. Temperature (calibrated to 16MHz)........................................19
Typical ILRC Frequency vs. Temperature ...........................................................................19
Typical Operating Current vs. VDD and CLK=IHRC/n.........................................................20
Typical Operating Current vs. VDD and CLK=ILRC/n..........................................................20
Typical Operating Current vs. VDD and CLK=32KHz EOSC / n..........................................21
4.10. Typical Operating Current vs. VDD and CLK=1MHz EOSC / n............................................21
4.11. Typical Operating Current vs. VDD and CLK=4MHz EOSC / n............................................22
4.12. Typical IO pull high resistance.............................................................................................22
4.13. Typical IO input high/low threshold voltage (VIH/VIL) ............................................................23
4.14. Typical IO driving current (IOH) and sink current (IOL) ...........................................................23
4.15. Typical power down current (IPD) and power save current (IPS)............................................24
5. Functional Description.....................................................................................................26
5.1.
5.2.
Program Memory – OTP .....................................................................................................26
Boot Up...............................................................................................................................26
5.2.1. Timing charts for reset conditions.............................................................................27
5.3.
5.4.
Data Memory – SRAM ........................................................................................................28
Oscillator and clock.............................................................................................................28
5.4.1. Internal High RC oscillator and Internal Low RC oscillator ......................................28
5.4.2. IHRC calibration .....................................................................................................28
5.4.3. IHRC Frequency Calibration and System Clock......................................................29
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PMS154B
8bit IO-Type Controller
5.4.4. External Crystal Oscillator.......................................................................................30
5.4.5. System Clock and LVR levels.................................................................................32
5.5.
5.6.
5.7.
5.8.
16-bit Timer (Timer16).........................................................................................................32
Watchdog Timer..................................................................................................................34
Interrupt Controller ..............................................................................................................35
Power-Save and Power-Down ............................................................................................38
5.8.1. Power-Save mode (“stopexe”)................................................................................38
5.8.2. Power-Down mode (“stopsys”)................................................................................39
5.8.3. Wake-up.................................................................................................................40
5.9.
IO Pins................................................................................................................................41
5.10. Reset ..................................................................................................................................42
5.10.1. Reset......................................................................................................................42
5.10.2. LVR reset ...............................................................................................................42
5.11. VDD/2 Bias Voltage Generator............................................................................................42
5.12. Comparator.........................................................................................................................43
5.12.1. Internal reference voltage (Vinternal R)........................................................................44
5.12.2. Using the comparator .............................................................................................46
5.12.3. Using the comparator and band-gap 1.20V ............................................................47
5.13. 8-bit Timer with PWM generation (Timer2, Timer3).............................................................48
5.13.1. Using the Timer2 to generate periodical waveform .................................................49
5.13.2. Using the Timer2 to generate 8-bit PWM waveform................................................50
5.13.3. 51
5.13.4. Using the Timer2 to generate 6-bit PWM waveform................................................52
5.14. 11-bit PWM generation........................................................................................................53
5.14.1. PWM Waveform .....................................................................................................53
5.14.2. Hardware and Timing Diagram ...............................................................................53
5.14.3. Equations for 11-bit PWM Generator......................................................................54
6. IO Registers.......................................................................................................................55
6.1.
6.2.
6.3.
6.4.
6.5.
6.6.
6.7.
6.8.
6.9.
ACC Status Flag Register (flag), IO address = 0x00 ...........................................................55
Stack Pointer Register (sp), IO address = 0x02...................................................................55
Clock Mode Register (clkmd), IO address = 0x03................................................................55
Interrupt Enable Register (inten), IO address = 0x04...........................................................56
Interrupt Request Register (intrq), IO address = 0x05 .........................................................56
Timer 16 mode Register (t16m), IO address = 0x06............................................................57
External Oscillator setting Register (eoscr, write only), IO address = 0x0a..........................57
Interrupt Edge Select Register (integs), IO address = 0x0c.................................................58
Port A Digital Input Enable Register (padier), IO address = 0x0d ........................................58
6.10. Port B Digital Input Enable Register (pbdier), IO address = 0x0e ........................................58
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit IO-Type Controller
6.11. Port A Data Registers (pa), IO address = 0x10 ...................................................................58
6.12. Port A Control Registers (pac), IO address = 0x11..............................................................58
6.13. Port A Pull-High Registers (paph), IO address = 0x12.........................................................58
6.14. Port B Data Registers (pb), IO address = 0x14 ...................................................................59
6.15. Port B Control Registers (pbc), IO address = 0x15..............................................................59
6.16. Port B Pull-High Registers (pbph), IO address = 0x16.........................................................59
6.17. MISC Register (misc), IO address = 0x08 ...........................................................................59
6.18. Timer2 Control Register (tm2c), IO address = 0x1c.............................................................60
6.19. Timer2 Counter Register (tm2ct), IO address = 0x1d ..........................................................60
6.20. Timer2 Scalar Register (tm2s), IO address = 0x17..............................................................60
6.21. Timer2 Bound Register (tm2b), IO address = 0x09 .............................................................61
6.22. Timer3 Control Register (tm3c), IO address = 0x32 ............................................................61
6.23. Timer3 Counter Register (tm3ct), IO address = 0x33 ..........................................................61
6.24. Timer3 Scalar Register (tm3s), IO address = 0x34..............................................................62
6.25. Timer3 Bound Register (tm3b), IO address = 0x35 .............................................................62
6.26. Comparator Control Register (gpcc), IO address = 0x18.....................................................62
6.27. Comparator Selection Register (gpcs), IO address = 0x19..................................................63
6.28. PWMG0 control Register (pwmg0c), IO address = 0x20 .....................................................63
6.29. PWMG0 Scalar Register (pwmg0s), IO address = 0x21......................................................63
6.30. PWMG0 Counter Upper Bound High Register (pwmg0cubh), IO address = 0x24 ...............63
6.31. PWMG0 Counter Upper Bound Low Register (pwmg0cubl), IO address = 0x25 .................64
6.32. PWMG0 Duty Value High Register (pwmg0dth), IO address = 0x22 ...................................64
6.33. PWMG0 Duty Value Low Register (pwmg0dtl), IO address = 0x23 .....................................64
7. Instructions .......................................................................................................................65
7.1.
7.2.
7.3.
7.4.
7.5.
7.6.
7.7.
7.8.
7.9.
Data Transfer Instructions...................................................................................................66
Arithmetic Operation Instructions ........................................................................................69
Shift Operation Instructions .................................................................................................71
Logic Operation Instructions................................................................................................72
Bit Operation Instructions....................................................................................................74
Conditional Operation Instructions.......................................................................................76
System control Instructions .................................................................................................78
Summary of Instructions Execution Cycle ...........................................................................79
Summary of affected flags by Instructions...........................................................................80
7.10. BIT definition.......................................................................................................................80
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit IO-Type Controller
8. Code Options ....................................................................................................................81
9. Special Notes ....................................................................................................................82
9.1.
9.2.
Warning...............................................................................................................................82
Using IC..............................................................................................................................82
9.2.1. IO pin usage and setting.........................................................................................82
9.2.2. Interrupt..................................................................................................................83
9.2.3. System clock switching...........................................................................................83
9.2.4. Watchdog ...............................................................................................................83
9.2.5. TIMER time out.......................................................................................................84
9.2.6. IHRC.......................................................................................................................84
9.2.7. LVR ........................................................................................................................84
9.2.8. Program writing ......................................................................................................84
9.3.
Using ICE............................................................................................................................85
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Revision History:
Revision
Date
Description
0.00
2016/08/09 Preliminary version
1. Add Section 1.4: PMS154B-1J16A & PMS154B-M10 Package Information
2. Add Chapter 3: MSOP10 & QFN pin assignment and description
1. Updated company address & Tel No.
0.01
2016/11/23
2. Amend Section 1.1, 1.2, 1.3
3. Add PMS154B-S08 & PMS154B-U06 Package Information
4. Add Chapter 3: SOP8 & SOT23-6 pin assignment and description
5. Open 32KHz EOSC mode
6. Amend Section 4.1 DC/AC Characteristics: VIH / VIL
7. Amend Section 4.3 to Section 4.14
8. Add Section 4.15 Typical power down current (IPD) and power save current (IPS)
9. Add Section 5.2.1 Timing charts for reset conditions
10. Amend Table 2: Three Oscillator Circuits provided by PMS154B
11. Amend Section 5.4.3, 5.4.4 and 5.4.5
12. Amend Section 5.6 Watchdog Timer
13. Amend Section 5.7 Interrupt Controller
14. Amend Section 5.8.1, 5.8.2 and 5.8.3
15. Amend Table 6: Differences in wake-up sources between Power-Save mode
and Power-Down mode
16. Amend Fig. 9: Hardware diagram of comparator
17. Amend Section 5.12.2 and 5.12.3
18. Amend Fig. 17: Hardware Diagram of 11-bit PWM Generator 0 (PWMG0)
19. Amend Section 5.14.3 Equations for 11-bit PWM Generator
20. Amend Section 6.3 Clock Mode Register
1.02
2018/11/27
21. Amend Section 6.9 Port A Digital Input Enable Register
22. Amend Section 6.10 Port B Digital Input Enable Register
23. Amend Section 6.17 MISC Register
24. Delete Section 6.18 MISC2 Register
25. Amend Section 6.27Comparator Selection Register
26. Amend Section 6.29 PWMG0 Scalar Register
27. Amend Section 6.31 PWMG0 Counter Upper Bound Low Register
28. Delete the Symbol “pc0” in Chapter 7
29. Amend Section 7.8 Summary of Instructions Execution Cycle and delete 9.2.8
30. Amend the instruction “cneqsn a, I” in Section 7.9
31. Move Section 9.2.9 BIT definition to Section 7.10
32. Add Chapter 8 Code Options
33. Updated the link in Section 9.1
34. Amend Section 9.2.1 IO pin usage and setting
35. Amend Section 9.2.5 TIMER time out
36. Add Section 9.2.6 IHRC
37. Amend 9.2.7 and 9.2.8
38. Amend 9.3 Using ICE
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit IO-Type Controller
Major Differences between PMS154 and PMS154B
Item
Function
PMS154
PMS154B
1
Operating voltage range
2.2V ~ 3.6V
2.2V ~ 5.5V
4.0V, 3.5V, 3.0V, 2.75V,
2.5V, 2.2V, 2.0V, 1.8V
2
3
LVR levels
2.75V, 2.5V, 2.2V
Watchdog timeout period
4096, 16384, 65536, 262144TILRC 8192, 16384, 65536, 262144TILRC
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
1. Features
1.1. Special Features
General purpose series
Not supposed to use in AC RC step-down powered or high EFT requirement applications.
PADAUK assumes no liability if such kind of applications can not pass the safety regulation tests.
Operating temperature range: -20°C ~ 70°C
1.2. System Features
2KW OTP program memory
128 Bytes data RAM
One hardware 16-bit timer
Two hardware 8-bit timer with PWM generator
One hardware 11-bit PWM generator
Provide one hardware comparator
14 IO pins with optional pull-high resistor
Three different IO driving capability groups to meet different application requirement
Optional IO driving capability for each port: normal drive and low drive
Every IO pin can be configured to enable wake-up function
Built-in half VDD bias voltage generator to provide maximum 4x10 dots LCD display
Clock sources: External crystal oscillator, internal high RC oscillator and internal low RC oscillator
For every wake-up enabled IO, two optional wake-up speed are supported: normal and fast
Eight levels of LVR: 4.0V, 3.5V, 3.0V, 2.75V, 2.5V, 2.2V, 2.0V, 1.8V
Two external interrupt pins
1.3. CPU Features
One processing unit operating mode
Most instructions are 1T execution cycle
Programmable stack pointer and adjustable stack level
Direct and indirect addressing modes for data access. Data memories are available for use as an index pointer of
Indirect addressing mode
IO space and memory space are independent
1.4. Package Information
PMS154B-S16: SOP16 (150mil)
PMS154B-D16: DIP16 (300mil)
PMS154B-1J16A: QFN3*3-16pin (0.5 pitch)
PMS154B-S14: SOP14 (150mil)
PMS154B-M10: MSOP10 (118mil)
PMS154B-S08: SOP8 (150mil)
PMS154B-U06: SOT23-6 (60mil)
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
2. General Description and Block Diagram
The PMS154B is an IO-Type, fully static, OTP-based CMOS 8-bit microcontroller; it employs RISC architecture
and most the instructions are executed in one cycle except that few instructions are two cycles that handle
indirect memory access. 2KW OTP program memory and 128 bytes data SRAM are inside, one hardware 16-bit
timer, two hardware 8-bit timers with PWM generation (Timer2, Timer3) and one hardware 11-bit timers with
PWM generation (PWMG0) is also included, PMS154B also supports one hardware comparator and VDD/2 bias
voltage generator for LCD display application.
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
3. Pin Definition and Functional Description
PB4/TM2PWM/PG0PWM
PB5/TM3PWM/PG0PWM
PB6/TM3PWM/CIN2-
PB7/TM3PWM/CIN3-
VDD
PB3
1
2
3
4
5
6
7
8
16
15
14
13
12
PB2/TM2PWM
PB1
PB0/INT1/COM1
GND
PA7/X1
11 PA0/INT0/COM2/CO/PG0PWM
PA6/X1
PA4/COM3/CIN+/CIN4-
10
9
PA5/PRST#
PA3/TM2PWM/COM4/CIN1-
PMS154B-S16: SOP16 (150mil)
PMS154B-D16: DIP16 (300mil)
PB5/TM3PWM/PG0PWM
PB6/TM3PWM/CIN2-
PB7/TM3PWM/CIN3-
VDD
PB2/TM2PWM
1
2
3
4
5
6
7
14
13
12
11
10
9
PB1
PB0/INT1/COM1
GND
PA7/X1
PA0/INT0/COM2/CO/PG0PWM
PA4/COM3/CIN+/CIN4-
PA3/TM2PWM/COM4/CIN1-
PA6/X1
PA5/PRST#
8
PMS154B-S14: SOP14(150mil)
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
PMS154B-M10: MSOP10 (118mil)
Pin & Buffer
Type
Pin Name
Description
This pin can be used as:
(1) Bit 7 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently
IO
PA7 /
X1
ST /
(2) X1 when crystal oscillator is used
CMOS /
Analog
When this pin is configured as crystal oscillator function, please use bit 7 of
register padier to disable the digital input to prevent current leakage. This pin can
be used to wake-up system during sleep mode; however, wake-up function is also
disabled if bit 7 of padier register is “0”.
This pin can be used as:
(1) Bit 6 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PA6 /
X2
ST /
(2) X2 when crystal oscillator is used.
CMOS /
Analog
When this pin is configured as crystal oscillator function, please use bit 6 of
register padier to disable the digital input to prevent current leakage. This pin can
be used to wake-up system during sleep mode; however, wake-up function is also
disabled if bit 6 of padier register is “0”.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 12 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Pin & Buffer
Type
Pin Name
Description
This pin can be used as:
(1) Bit 5 of port A. It can be configured as digital input or open-drain output, with
pull-up resistor.
IO
PA5 /
(2) Hardware reset.
ST /
PRST#
This pin can be used to wake-up system during sleep mode; however, wake-up
function is also disabled if bit 5 of padier register is “0”.
Please put 33Ω resistor in series to have high noise immunity when this pin is in
input mode.
CMOS
This pin can be used as:
(1) Bit 4 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently
IO
PA4 /
CIN+ /
COM3 /
CIN4-
(2) Plus input source of comparator.
ST /
(3) Minus input source 4 of comparator.
CMOS /
Analog
(4) COM3 to provide (1/2 VDD) for LCD display
When this pin is configured as analog input, please use bit 4 of register padier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 4 of padier register is “0”.
This pin can be used as:
(1) Bit 3 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PA3 /
TM2PWM /
COM4 /
CIN1-
(2) Minus input source 1 of comparator.
ST /
(3) Output of 8-bit Timer2 (TM2)
CMOS /
Analog
(4) COM4 to provide (1/2 VDD) for LCD display
When this pin is configured as analog input, please use bit 3 of register padier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 3 of padier register is “0”.
This pin can be used as:
(1) Bit 0 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
(2) External interrupt line 0. Both rising edge and falling edge are accepted to
request interrupt service.
PA0 /
INT0 /
IO
ST /
(3) Output of comparator
PG0PWM /
CO /
CMOS /
Analog
(4) Output of 11-bit PWM generator PWMG0
(5) COM2 to provide (1/2 VDD) for LCD display
COM2
When this pin is configured as analog input, please use bit 0 of register padier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 0 of padier register is “0”.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 13 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Pin & Buffer
Type
Pin Name
Description
This pin can be used as:
(1) Bit 7 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PB7 /
TM3PWM /
CIN3-
(2) Minus input source 3 of comparator.
ST /
(3) Output of 8-bit timer Timer3 (TM3)
CMOS /
Analog
When this pin is configured as analog input, please use bit 7 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 7 of pbdier register is “0”.
This pin can be used as:
(1) Bit 6 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PB6 /
TM3PWM /
CIN2-
(2) Minus input source 2 of comparator.
ST /
(3) Output of 8-bit timer Timer3 (TM3)
CMOS /
Analog
When this pin is configured as analog input, please use bit 6 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 6 of pbdier register is “0”.
This pin can be used as:
(1) Bit 5 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PB5 /
(2) Output of 8-bit timer Timer3 (TM3)
ST /
TM3PWM /
PG0PWM
(3) Output of 11-bit PWM generator PWMG0
CMOS /
Analog
When this pin is configured as analog input, please use bit 5 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 5 of pbdier register is “0”.
This pin can be used as:
(1) Bit 4 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PB4 /
(2) Output of 8-bit timer Timer2 (TM2)
ST /
TM2PWM /
PG0PWM
(3) Output of 11-bit PWM generator PWMG0
CMOS /
Analog
When this pin is configured as analog input, please use bit 4 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 4 of pbdier register is “0”.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 14 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Pin & Buffer
Type
Pin Name
Description
This pin can be used as:
(1) Bit 3 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
ST /
PB3
When this pin is configured as analog input, please use bit 3 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 3 of pbdier register is “0”.
CMOS /
This pin can be used as:
(1) Bit 2 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
PB2 /
ST /
(2) Output of 8-bit timer Timer2 (TM2)
TM2PWM
CMOS /
Analog
When this pin is configured as analog input, please use bit 2 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 2 of pbdier register is “0”.
This pin can be used as:
(1) Bit 1 of port B. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
ST /
PB1
When this pin is configured as analog input, please use bit 1 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 1 of pbdier register is “0”.
CMOS /
Analog
This pin can be used as:
(1) Bit 0 of port A. It can be configured as digital input or two-state output, with
pull-up resistor by software independently.
IO
(2) External interrupt line 1. Both rising edge and falling edge are accepted to
request interrupt service.
PB0 /
INT1 /
COM1
ST /
CMOS /
Analog
(3) COM1 to provide (1/2 VDD) for LCD display
When this pin is configured as analog input, please use bit 0 of register pbdier to
disable the digital input to prevent current leakage. This pin can be used to
wake-up system during sleep mode; however, wake-up function is also disabled if
bit 0 of pbdier register is “0”.
VDD
GND
Positive power
Ground
Notes: IO: Input/ Output; ST: Schmitt Trigger input; Analog: Analog input pin; CMOS: CMOS voltage level
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit IO-Type Controller
4. Device Characteristics
4.1. DC/AC Characteristics
All data are acquired under the conditions of VDD=3.3V, fSYS=2MHz unless noted.
Symbol
VDD
Description
Operating Voltage
Min
2.2*
-5
Typ
Max
5.5
5
Unit
V
Conditions(Ta=25oC)
* Subject to LVR tolerance
Low Voltage Reset tolerance
%
LVR%
System clock (CLK)* =
IHRC/2
0
0
0
8M
4M
2M
VDD ≧ 3.5V
VDD ≧ 2.5V
VDD ≧ 2.2V
IHRC/4
fSYS
Hz
IHRC/8
ILRC
70K
0.3
12
VDD = 3V
fSYS=IHRC/16=1MIPS@3V
fSYS=ILRC=70KHz@3V
fSYS=EOSC=32KHz@3V
mA
uA
uA
IOP
IPD
IPS
Operating Current
10
Power Down Current
(by stopsys command)
Power Save Current
(by stopexe command)
*Disable IHRC
0.5
uA
fSYS= 0Hz, VDD =3.3V
5
uA
VDD =3.3V
0.2VDD
0.1VDD
VDD
PA5
VIL
VIH
Input low voltage for IO lines
0
Others IO
V
Input high voltage for IO lines
IO lines sink current (normal)
*PA0,PA3,PA4,PB2,PB5,PB6
*PA6,PA7,PB0,PB1,PB3,PB4,PB7
*PA5
0.7 VDD
10
6
mA VDD=3.3V, VOL=0.33V
mA VDD=3.3V, VOL=0.33V
IOL
5
IO lines sink current (low)
*PA5
5
2
*Others
IO lines drive current (normal)
IO lines drive current (low)
Input voltage
-5
IOH
VIN
mA VDD=3.3V, VOH=2.97V
V
-1.6
-0.3
VDD+0.3
1
VDD +0.3≧VIN≧ -0.3
mA
IINJ (PIN) Injected current on pin
RPH
Pull-high Resistance
200
16*
KΩ VDD=3.3V
@25oC
15.84*
15.20*
16.16*
16.80*
fIHRC
Frequency of IHRC after calibration *
MHz
V
DD =2V~5.5V,
16*
-20oC <Ta<70oC*
VDD = 3.3V
tINT
Interrupt pulse width
30
ns
V
In power-down mode
VDR
RAM data retention voltage*
1.5
Symbol
Description
Min
Typ
Max
Unit
TILRC
Conditions(Ta=25oC)
misc[1:0]=00 (default)
misc[1:0]=01
8192
tWDT
Watchdog timeout period
16384
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
65536
misc[1:0]=10
misc[1:0]=11
262144
System boot-up period from
power-on for Normal boot-up
System boot-up period from
power-on for Fast boot-up
Wake-up time period for fast
wake-up
47
780
45
ms
us
tSBP
@ VDD =5V
Where TILRC is the time
period of ILRC
tWUP
TILRC
Wake-up time period for normal
wake-up
3000
tRST
External reset pulse width
120
us
mV
V
CPos Comparator offset*
-
±10
±20
VDD-1.5
500
CPcm Comparator input common mode*
CPspt Comparator response time**
0
100
2.5
20
ns
Both rising and falling
VDD = 3.3V
Stable time to change comparator
CPmc
mode
7.5
us
CPcs Comparator current consumption
uA
*These parameters are for design reference, not tested for every chip.
4.2. Absolute Maximum Ratings
Supply Voltage ............................................
2.2V ~ 5.5V (Maximum Rating: 5.5V)
*If VDD is over the maximum rating, it may lead to a permanent damage of IC.
Input Voltage …………………………………..
Operating Temperature ………………………
Storage Temperature …………………………
Junction Temperature ………………………..
-0.3V ~ VDD + 0.3V
-20°C ~ 70°C
-50°C ~ 125°C
150°C
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.3. Typical IHRC Frequency vs. VDD (calibrated to 16MHz)
4.4. Typical ILRC Frequency vs. VDD
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.5. Typical IHRC Frequency vs. Temperature (calibrated to 16MHz)
4.6. Typical ILRC Frequency vs. Temperature
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.7. Typical Operating Current vs. VDD and CLK=IHRC/n
Conditions: ON: IHRC; OFF: Band-gap, LVR, T16 modules, ILRC modules;
IO: PA0:0.5Hz output toggle and no loading, others: input and no floating
4.8. Typical Operating Current vs. VDD and CLK=ILRC/n
Conditions: ON: ILRC; OFF: Band-gap, LVR, T16 modules, IHRC modules;
IO: PA0:0.5Hz output toggle and no loading, others: input and no floating
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.9. Typical Operating Current vs. VDD and CLK=32KHz EOSC / n
Conditions: ON: EOSC; OFF: Band-gap, LVR, T16 modules, IHRC, ILRC modules;
IO: PA0:0.5Hz output toggle and no loading, others: input and no floating
4.10.Typical Operating Current vs. VDD and CLK=1MHz EOSC / n
Conditions: ON: EOSC; OFF: Band-gap, LVR, T16 modules, IHRC, ILRC modules;
IO: PA0:0.5Hz output toggle and no loading, others: input and no floating
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.11.Typical Operating Current vs. VDD and CLK=4MHz EOSC / n
Conditions: ON: EOSC; OFF: Band-gap, LVR, T16 modules, IHRC, ILRC modules;
IO: PA0:0.5Hz output toggle and no loading, others: input and no floating
4.12.Typical IO pull high resistance
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PMS154B
8bit IO-Type Controller
4.13.Typical IO input high/low threshold voltage (VIH/VIL)
4.14.Typical IO driving current (IOH) and sink current (IOL)
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
4.15.Typical power down current (IPD) and power save current (IPS)
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PMS154B
8bit IO-Type Controller
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5. Functional Description
5.1. Program Memory – OTP
The OTP (One Time Programmable) program memory is used to store the program instructions to be
executed. The OTP program memory may contains the data, tables and interrupt entry. After reset, the initial
address 0x000 is reserved for system using, so the program will start from 0x001 which is GOTO FPPA0
instruction usually. The interrupt entry is 0x010 if used, the last 16 addresses are reserved for system using,
like checksum, serial number, etc. The OTP program memory for PMS154B is a 2KW that is partitioned as
Table 1. The OTP memory from address 0x7E8 to 0x7FF is for system using, address space from 0x002 to
0x00F and from 0x011 to 0x7E7 is user program space.
Address
0x000
0x001
0x002
•
Function
System Using
GOTO FPPA0 instruction
User program
•
0x00F
0x010
0x011
•
User program
Interrupt entry address
User program
•
0x7E7
0x7E8
•
User program
System Using
•
0x7FF
System Using
Table 1: Program Memory Organization
5.2. Boot Up
POR (Power-On-Reset) is used to reset PMS154B when power up. The boot up time can be optional fast or
normal. Time for fast boot-up is about 45 ILRC clock cycles whereas 3000 ILRC clock cycles for normal
boot-up. Customer must ensure the stability of supply voltage after power up no matter which option is
chosen, the power up sequence is shown in the Fig. 1 and tSBP is the boot up time.
VDD
t
SBP
POR
Program
Execution
Boot up from Power-On Reset
Fig. 1 Power Up Sequence
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5.2.1. Timing charts for reset conditions
LVR level
VDD
LVR
SBP
t
Program
Execution
Boot up from LVR detection
VDD
t
SBP
WD
Time Out
Program
Execution
Boot up from Watch Dog Time Out
VDD
Reset#
t
SBP
Program
Execution
Boot up from Reset Pad reset
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5.3. Data Memory – SRAM
The access of data memory can be byte or bit operation. Besides data storage, the SRAM data memory is
also served as data pointer of indirect access method and the stack memory.
The stack memory is defined in the data memory. The stack pointer is defined in the stack pointer register;
the depth of stack memory of each processing unit is defined by the user. The arrangement of stack memory
fully flexible and can be dynamically adjusted by the user.
For indirect memory access mechanism, the data memory is used as the data pointer to address the data
byte. All the data memory could be the data pointer; it’s quite flexible and useful to do the indirect memory
access. All the 128 bytes data memory of PMS154B can be accessed by indirect access mechanism.
5.4. Oscillator and clock
There are three oscillator circuits provided by PMS154B: external crystal oscillator (EOSC), internal high RC
oscillator (IHRC) and internal low RC oscillator (ILRC), and these three oscillators are enabled or disabled by
registers eoscr.7, clkmd.4 and clkmd.2 independently. User can choose one of these three oscillators as
system clock source and use clkmd register to target the desired frequency as system clock to meet different
applications.
Oscillator Module
EOSC
Enable / Disable
eoscr.7
IHRC
clkmd.4
ILRC
clkmd.2
Table2: Three Oscillator Circuits provided by PMS154B
5.4.1. Internal High RC oscillator and Internal Low RC oscillator
After boot-up, the IHRC and ILRC oscillators are enabled. The frequency of IHRC can be calibrated to
eliminate process variation by ihrcr register; normally it is calibrated to 16MHz. Please refer to the
measurement chart for IHRC frequency verse VDD and IHRC frequency verse temperature.
The frequency will vary by process, supply voltage and temperature, please refer to DC specification and do
not use for accurate timing application.
5.4.2. IHRC calibration
The IHRC frequency may be different chip by chip due to manufacturing variation, PMS154B provide the
IHRC frequency calibration to eliminate this variation, and this function can be selected when compiling
user’s program and the command will be inserted into user’s program automatically. The calibration
command is shown as below:
.ADJUST_IC SYSCLK=IHRC/(p1), IHRC=(p2)MHz, VDD=(p3)V
Where,
p1=2, 4, 8, 16, 32; In order to provide different system clock.
p2=16 ~ 18; In order to calibrate the chip to different frequency, 16MHz is the usually one.
p3=2.2 ~ 5.5; In order to calibrate the chip under different supply voltage.
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5.4.3. IHRC Frequency Calibration and System Clock
During compiling the user program, the options for IHRC calibration and system clock are shown as Table 3:
SYSCLK
○ Set IHRC / 2
○ Set IHRC / 4
○ Set IHRC / 8
CLKMD
IHRCR
Calibrated
Calibrated
Calibrated
Description
= 34h (IHRC / 2)
= 14h (IHRC / 4)
= 3Ch (IHRC / 8)
IHRC calibrated to 16MHz, CLK=8MHz (IHRC/2)
IHRC calibrated to 16MHz, CLK=4MHz (IHRC/4)
IHRC calibrated to 16MHz, CLK=2MHz (IHRC/8)
IHRC calibrated to 16MHz, CLK=1MHz (IHRC/16)
IHRC calibrated to 16MHz, CLK=0.5MHz (IHRC/32)
IHRC calibrated to 16MHz, CLK=ILRC
○ Set IHRC / 16 = 1Ch (IHRC / 16) Calibrated
○ Set IHRC / 32 = 7Ch (IHRC / 32) Calibrated
○ Set ILRC
○ Disable
= E4h (ILRC / 1)
No change
Calibrated
No Change IHRC not calibrated, CLK not changed
Table 3: Options for IHRC Frequency Calibration
Usually, .ADJUST_IC will be the first command after boot up, in order to set the target operating frequency
whenever stating the system. The program code for IHRC frequency calibration is executed only one time that
occurs in writing the codes into OTP memory; after then, it will not be executed again. If the different option for
IHRC calibration is chosen, the system status is also different after boot. The following shows the status of
PMS154B for different option:
(1) . ADJUST_IC SYSCLK=IHRC/2, IHRC=16MHz, VDD=5V
After boot, CLKMD = 0x34:
IHRC frequency is calibrated to 16MHz@VDD=5V and IHRC module is enabled
System CLK = IHRC/2 = 8MHz
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
(2) .ADJUST_IC SYSCLK=IHRC/4, IHRC=16MHz, VDD=3.3V
After boot, CLKMD = 0x14:
IHRC frequency is calibrated to 16MHz@VDD=3.3V and IHRC module is enabled
System CLK = IHRC/4 = 4MHz
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
(3) .ADJUST_IC SYSCLK=IHRC/8, IHRC=16MHz, VDD=2.5V
After boot, CLKMD = 0x3C:
IHRC frequency is calibrated to 16MHz@VDD=2.5V and IHRC module is enabled
System CLK = IHRC/8 = 2MHz
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
(4) .ADJUST_IC SYSCLK=IHRC/16, IHRC=16MHz, VDD=2.2V
After boot, CLKMD = 0x1C:
IHRC frequency is calibrated to 16MHz@VDD=2.2V and IHRC module is enabled
System CLK = IHRC/16 = 1MHz
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
(5) .ADJUST_IC SYSCLK=IHRC/32, IHRC=16MHz, VDD=5V
After boot, CLKMD = 0x7C:
IHRC frequency is calibrated to 16MHz@VDD=5V and IHRC module is enabled
System CLK = IHRC/32 = 500KHz
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
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PMS154B
8bit IO-Type Controller
(6) .ADJUST_IC SYSCLK=ILRC, IHRC=16MHz, VDD=5V
After boot, CLKMD = 0xE4:
IHRC frequency is calibrated to 16MHz@VDD=5V and IHRC module is disabled
System CLK = ILRC
Watchdog timer is disabled, ILRC is enabled, PA5 is in input mode
(7) .ADJUST_IC DISABLE
After boot, CLKMD is not changed (Do nothing):
IHRC is not calibrated and IHRC module is disabled. Band-gap is not calibrated.
System CLK = ILRC or IHRC/64 (by Boot-up time)
Watchdog timer is enabled, ILRC is enabled, PA5 is in input mode
5.4.4. External Crystal Oscillator
If crystal oscillator is used, a crystal or resonator is required between X1 and X2. Fig. 2 shows the hardware
connection under this application; the range of operating frequency of crystal oscillator can be from 32 KHz
to 4MHz, depending on the crystal placed on; higher frequency oscillator than 4MHz is NOT supported.
(Select driving current for oscillator)
Eoscr[6:5]
(Enable crystal oscillator)
Eoscr.7
C1
PA7/X1
System clock = EOSC
PA6/X2
C2
The values of C1 and C2 should depend on
the specification of crystal.
Fig. 2: Connection of crystal oscillator
Besides crystal, external capacitor and options of PMS154B should be fine tuned in eoscr (0x0a) register to
have good sinusoidal waveform. The eoscr.7 is used to enable crystal oscillator module, eoscr.6 and eoscr.5
are used to set the different driving current to meet the requirement of different frequency of crystal
oscillator:
eoscr.[6:5]=01 : Low driving capability, for lower frequency, ex: 32KHz crystal oscillator
eoscr.[6:5]=10 : Middle driving capability, for middle frequency, ex: 1MHz crystal oscillator
eoscr.[6:5]=11 : High driving capability, for higher frequency, ex: 4MHz crystal oscillator
Table 4 shows the recommended values of C1 and C2 for different crystal oscillator; the measured start-up
time under its corresponding conditions is also shown. Since the crystal or resonator had its own
characteristic, the capacitors and start-up time may be slightly different for different type of crystal or
resonator, please refer to its specification for proper values of C1 and C2.
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
Measured
Frequency
C1
C2
Conditions
(eoscr[6:5]=11)
Start-up time
6ms
4MHz
1MHz
32KHz
4.7pF
10pF
22pF
4.7pF
10pF
22pF
11ms
(eoscr[6:5]=10)
(eoscr[6:5]=01)
450ms
Table 4: Recommend values of C1 and C2 for crystal and resonator oscillators
When using the crystal oscillator, user must pay attention to the stable time of oscillator after enabling it, the
stable time of oscillator will depend on frequency, crystal type, external capacitor and supply voltage. Before
switching the system to the crystal oscillator, user must make sure the oscillator is stable; the reference
program is shown as below:
void
{
FPPA0 (void)
. ADJUST_IC SYSCLK=IHRC/16, IHRC=16MHz, VDD=5V
// If Band-gap is not calibrated, it can use “. ADJUST_IC
DISABLE”
...
$
$
EOSCR Enable, 4Mhz;
T16M EOSC, /1, BIT13;
// EOSCR = 0b110_00000;
// T16 receive 2^14=16384 clocks of crystal EOSC
// Intrq.T16 =>1, crystal EOSC Is stable
WORD
stt16
count
=
0;
count;
Intrq.T16 =
0;
while(!Intrq.T16) NULL;
Clkmd = 0xB4;
// count fm 0x0000 to 0x2000, then set INTRQ.T16
// IHRC switch to EOSC, not disable IHRC
Clkmd.4 = 0;
...
// disable IHRC
}
Please notice that the crystal oscillator should be fully turned off before entering the power-down mode, in
order to avoid unexpected wakeup event.
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PMS154B
8bit IO-Type Controller
5.4.5. System Clock and LVR levels
The clock source of system clock comes from IHRC、ILRC or EOSC, the hardware diagram of system clock
in the PMS154B is shown as Fig. 3.
clkmd[7:5]
÷2, ÷4, ÷8,
÷16, ÷32, ÷64
IHRC
M
U
System
clock
CLK
X
÷1, ÷4, ÷16
ILRC
÷1, ÷2, ÷4, ÷8
EOSC
Fig. 3: Options of System Clock
User can choose different operating system clock depends on its requirement; the selected operating system clock
should be combined with supply voltage and LVR level to make system stable. The LVR level will be checked during
compilation, and the lowest LVR levels can be chosen for different operating frequencies. Please refer to Section
4.1.
5.5. 16-bit Timer (Timer16)
PMS154B provide a 16-bit hardware timer (Timer16/T16) and its clock source may come from system clock
(CLK), internal high RC oscillator (IHRC), internal low RC oscillator (ILRC) , external crystal oscillator (EOSC),
PA0 or PA4. Before sending clock to the 16-bit counter, a pre-scaling logic with divided-by-1, 4, 16 or 64 is
selectable for wide range counting. The 16-bit counter performs up-counting operation only, the counter initial
values can be stored from data memory by issuing the stt16 instruction and the counting values can be
loaded to data memory by issuing the ldt16 instruction. The interrupt request from Timer16 will be triggered
by the selected bit which comes from bit[15:8] of this 16-bit counter, rising edge or falling edge can be
optional chosen by register integs.4. The hardware diagram of Timer16 is shown as Fig. 4.
Fig. 4: Hardware diagram of Timer16
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8bit IO-Type Controller
There are three parameters to define the Timer16 using; 1st parameter is used to define the clock source of
Timer16, 2nd parameter is used to define the pre-scalar and the 3rd one is to define the interrupt source.
T16M IO_RW
0x06
$ 7~5:
$ 4~3:
$ 2~0:
STOP, SYSCLK, X, PA4_F, IHRC, EOSC, ILRC, PA0_F
/1, /4, /16, /64
// 1st par.
// 2nd par.
// 3rd par.
BIT8, BIT9, BIT10, BIT11, BIT12, BIT13, BIT14, BIT15
User can choose the proper parameters of T16M to meet system requirement, examples as below:
$
T16M
SYSCLK, /64, BIT15;
// choose (SYSCLK/64) as clock source, every 2^16 clock to set INTRQ.2=1
// if system clock SYSCLK = IHRC / 2 = 8 MHz
// SYSCLK/64 = 8 MHz/64 = 8 uS, about every 524 mS to generate INTRQ.2=1
$
$
T16M
PA0, /1, BIT8;
// choose PA0 as clock source, every 2^9 to generate INTRQ.2=1
// receiving every 512 times PA0 to generate INTRQ.2=1
T16M
STOP;
// stop Timer16 counting
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PMS154B
8bit IO-Type Controller
5.6. Watchdog Timer
The watchdog timer (WDT) is a counter with clock coming from ILRC. WDT can be cleared by power-on-reset
or by command wdreset at any time. There are four different timeout periods of watchdog timer can be
chosen by setting the misc register, it is:
8k ILRC clock period when misc[1:0]=00 (default)
16k ILRC clock period when misc[1:0]=01
64k ILRC clock period when misc[1:0]=10
256k ILRC clock period when misc[1:0]=11
The frequency of ILRC may drift a lot due to the variation of manufacture, supply voltage and temperature;
user should reserve guard band for safe operation. Besides, the watchdog period will also be shorter than
expected after Reset or Wakeup events. It is suggested to clear WDT by wdreset command after these
events to ensure enough clock periods before WDT timeout.
When WDT is timeout, PMS154B will be reset to restart the program execution. The relative timing diagram of
watchdog timer is shown as Fig. 5.
VDD
t
SBP
WD
Time Out
Program
Execution
Watch Dog Time Out Sequence
Fig. 5: Sequence of Watch Dog Time Out
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Page 34 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5.7. Interrupt Controller
The hardware diagram of interrupt controller is shown as Fig. 6, there are total 7 interrupt sources for
PMS154B: PA0, PB0, Timer16, Comparator, Timer2, Timer3, PWM Generator 0. Among them, every
interrupt request line to CPU has its own corresponding interrupt control bit to enable or disable it. All the
interrupt request flags are set by hardware and cleared by writing intrq register. When the request flags are
set, it can be rising edge, falling edge or both, depending on the setting of register integs. All the interrupt
request lines are also controlled by engint instruction (enable global interrupt) to enable interrupt operation
and disgint instruction (disable global interrupt) to disable it.
Fig. 6: Hardware diagram of Interrupt controller
The stack memory for interrupt is shared with data memory and its address is specified by stack register sp.
Since the program counter is 16 bits width, the bit 0 of stack register sp should be kept 0. Moreover, user can
use pushaf / popaf instructions to store or restore the values of ACC and flag register to / from stack
memory. Since the stack memory is shared with data memory, the stack position and level are arranged by
the compiler in Mini-C project. When defining the stack level in ASM project, users should arrange their
locations carefully to prevent address conflicts.
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PMS154B
8bit IO-Type Controller
Once the interrupt occurs, its operation will be:
The program counter will be stored automatically to the stack memory specified by register sp.
New sp will be updated to sp+2.
Global interrupt will be disabled automatically.
The next instruction will be fetched from address 0x010.
During the interrupt service routine, the interrupt source can be determined by reading the intrq register.
Note: Even if INTEN=0, INTRQ will be still triggered by the interrupt source.
After finishing the interrupt service routine and issuing the reti instruction to return back, its operation will be:
The program counter will be restored automatically from the stack memory specified by register sp.
New sp will be updated to sp-2.
Global interrupt will be enabled automatically.
The next instruction will be the original one before interrupt.
User must reserve enough stack memory for interrupt, two bytes stack memory for one level interrupt and four
bytes for two levels interrupt. For interrupt operation, the following sample program shows how to handle the
interrupt, noticing that it needs four bytes stack memory to handle interrupt and pushaf.
void
{
FPPA0
(void)
...
$
INTEN PA0;
// INTEN =1; interrupt request when PA0 level changed
// clear INTRQ
INTRQ
ENGINT
...
=
0;
// global interrupt enable
DISGINT
...
// global interrupt disable
}
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
void Interrupt (void)
// interrupt service routine
{
PUSHAF
// store ALU and FLAG register
// If INTEN.PA0 will be opened and closed dynamically,
// user can judge whether INTEN.PA0 =1 or not.
// Example: If (INTEN.PA0 && INTRQ.PA0) {…}
// If INTEN.PA0 is always enable,
// user can omit the INTEN.PA0 judgement to speed up interrupt service routine.
If (INTRQ.PA0)
{
// Here for PA0 interrupt service routine
INTRQ.PA0 = 0;
...
// Delete corresponding bit (take PA0 for example)
}
...
// X : INTRQ = 0;
// It is not recommended to use INTRQ = 0 to clear all at the end of
the
// interrupt service routine.
// It may accidentally clear out the interrupts that have just occurred
// and are not yet processed.
POPAF
// restore ALU and FLAG register
}
©Copyright 2018, PADAUK Technology Co. Ltd
Page 37 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit IO-Type Controller
5.8. Power-Save and Power-Down
There are three operational modes defined by hardware: ON mode, Power-Save mode and Power-Down
modes. ON mode is the state of normal operation with all functions ON, Power-Save mode (“stopexe”) is the
state to reduce operating current and CPU keeps ready to continue, Power-Down mode (“stopsys”) is used
to save power deeply. Therefore, Power-Save mode is used in the system which needs low operating power
with wake-up occasionally and Power-Down mode is used in the system which needs power down deeply
with seldom wake-up. Table 5 shows the differences in oscillator modules between Power-Save mode
(“stopexe”) and Power-Down mode (“stopsys”).
Differences in oscillator modules between STOPSYS and STOPEXE
IHRC
Stop
ILRC
Stop
STOPSYS
STOPEXE
No Change
No Change
Table 5: Differences in oscillator modules between STOPSYS and STOPEXE
5.8.1. Power-Save mode (“stopexe”)
Using “stopexe” instruction to enter the Power-Save mode, only system clock is disabled, remaining all the
oscillator modules be active. For CPU, it stops executing; however, for Timer16, counter keep counting if its
clock source is not the system clock. The wake-up sources for “stopexe” can be IO-toggle or Timer16
counts to set values when the clock source of Timer16 is IHRC or ILRC modules. , or wakeup by comparator
when setting GPCC.7=1 and GPCS.6=1 to enable the comparator wakeup function at the same time. Wake-up from
input pins can be considered as a continuation of normal execution, the detail information for Power-Save
mode shown below:
IHRC oscillator modules: No change, keep active if it was enabled
ILRC oscillator modules: must remain enabled, need to start with ILRC when be wakening up
System clock: Disable, therefore, CPU stops execution
OTP memory is turned off
Timer16, Timer2, Timer3: Stop counting if system clock is selected or the corresponding oscillator
module is disabled; otherwise, it keeps counting.
Wake-up sources: IO toggle in digital mode (PxDIER bit is 1) or Timer16 or Timer2 or Timer3 or
comparator.
An example shows how to use Timer16 to wake-up from “stopexe”:
$ T16M IHRC, /1, BIT8
…
// Timer16 setting
WORD
STT16
stopexe;
…
count
count;
=
0;
The initial counting value of Timer16 is zero and the system will be woken up after the Timer16 counts 256
IHRC clocks.
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Page 38 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.8.2. Power-Down mode (“stopsys”)
Power-Down mode is the state of deeply power-saving with turning off all the oscillator modules. By using
the “stopsys” instruction, this chip will be put on Power-Down mode directly. It is recommend to set
GPCC.7=0 to disable the comparator before the command “stopsys”. Before entering Power-Down mode,
the internal low-frequency oscillator (ILRC) must be enabled to wake up the system, that is, before issuing
the stopsys command, the bit 2 of the CLKMD register must be set to 1. The following shows the internal
status of PMS154B in detail when “stopsys” command is issued:
All the oscillator modules are turned off
OTP memory is turned off
The contents of SRAM and registers remain unchanged
Wake-up sources: IO toggle in digital mode (PxDIER bit is 1)
Wake-up from input pins can be considered as a continuation of normal execution. To minimize power
consumption, all the I/O pins should be carefully manipulated before entering power-down mode. The
reference sample program for power down is shown as below:
CMKMD
=
0xF4;
0;
//
//
Change clock from IHRC to ILRC, disable watchdog timer
disable IHRC
CLKMD.4 =
…
while (1)
{
STOPSYS;
if (…) break;
//
//
//
enter power-down
if wakeup happen and check OK, then return to high speed,
else stay in power-down mode again.
}
CLKMD
=
0x34;
//
Change clock from ILRC to IHRC/2
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.8.3. Wake-up
After entering the Power-Down or Power-Save modes, the PMS154B can be resumed to normal operation
by toggling IO pins, Timer16, Timer2 and Timer3 interrupt is available for Power-Save mode ONLY. Table 6
shows the differences in wake-up sources between STOPSYS and STOPEXE.
Differences in wake-up sources between STOPSYS and STOPEXE
IO Toggle
Yes
TimerInterrupt
STOPSYS
STOPEXE
No
Yes
Yes
Table 6: Differences in wake-up sources between Power-Save mode and Power-Down mode
When using the IO pins to wake-up the PMS154B, registers pxdier should be properly set to enable the
wake-up function for every corresponding pin. The time for normal wake-up is about 3000 ILRC clocks
counting from wake-up event; fast wake-up can be selected to reduce the wake-up time by misc register,
and the time for fast wake-up is about 45 ILRC clocks from IO toggling.
Suspend mode
Wake-up mode
Wake-up time (tWUP) from IO toggle
STOPEXE suspend
or
STOPSYS suspend
45 * TILRC,
Where TILRC is the time period of ILRC
Fast wake-up
STOPEXE suspend
or
STOPSYS suspend
3000 * TILRC
,
Normal wake-up
Where TILRC is the clock period of ILRC
Please notice that when Fast boot-up is selected, no matter which wake-up mode is selected in misc.5, the
wake-up mode will be forced to be FAST. If Normal boot-up is selected, the wake-up mode is determined by
misc.5.
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.9. IO Pins
Other than PA5, all the pins can be independently set into two states output or input by configuring the data
registers (pa/pb), control registers (pac/pbc) and pull-high registers (paph/pbph) . All these pins have
Schmitt-trigger input buffer and output driver with CMOS level. When it is set to output low, the pull-up resistor
is turned off automatically. If user wants to read the pin state, please notice that it should be set to input mode
before reading the data port; if user reads the data port when it is set to output mode, the reading data comes
from data register, NOT from IO pad. As an example, Table 7 shows the configuration table of bit 0 of port A.
The hardware diagram of IO buffer is also shown as Fig. 7.
pa.0 pac.0 paph.0
Description
Input without pull-up resistor
X
X
0
1
1
0
0
1
1
1
0
1
X
0
1
Input with pull-up resistor
Output low without pull-up resistor
Output high without pull-up resistor
Output high with pull-up resistor
Table 7: PA0 Configuration Table
RD pull-high latch
WR pull-high latch
D
Q
(weak P-MOS)
pull-high
latch
D
D
Q
Data
latch
Q1
PAD
WR data latch
RD control latch
Q
WR control latch
Control
latch
M
U
X
RD Port
Data Bus
padier.x
Wakeup module
Interrupt module
Analog Module
Fig. 7: Hardware diagram of IO buffer
Other than PA5, all the IO pins have the same structure; PA5 can be open-drain ONLY when setting to output
mode (without Q1). When PMS154B put in power-down or power-save mode, every pin can be used to
wake-up system by toggling its state. Therefore, those pins needed to wake-up system must be set to input
mode and set the corresponding bits of registers pxdier to high. The same reason, padier.0 should be set to
high when PA0 is used as external interrupt pin.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 41 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.10. Reset
5.10.1. Reset
There are many causes to reset the PMS154B, once reset is asserted, all the registers in PMS154B will be
set to default values, system should be restarted once abnormal cases happen, or by jumping program
counter to address 0x0. The data memory is in uncertain state when reset comes from power-up and LVR;
however, the content will be kept when reset comes from PRST# pin or WDT timeout.
5.10.2. LVR reset
By code option, there are many different levels of LVR for reset. Usually, user selects LVR reset level to be
in conjunction with operating frequency and supply voltage.
5.11. VDD/2 Bias Voltage Generator
This function can be enabled by bit 4 of misc register. Those pins which are defined to output VDD/2
voltage are PB0, PA0, PA4 and PA3 during input mode, being used as COM function for LCD application. If
user
wants to output VDD, VDD/2, GND three levels voltage, the corresponding pins must be set to
output-high for VDD, enabling VDD/2 bias voltage with input mode for VDD/2, and
correspondingly, Fig.8 shows how to use this function.
output-low for GND
VDD
VDD/2
GND
Pin set to output high
Pin set to input
Pin set to output low
Fig. 8: Using VDD/2 bias voltage generator
©Copyright 2018, PADAUK Technology Co. Ltd
Page 42 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.12. Comparator
One hardware comparator is built inside the PMS154B; Fig. 9 shows its hardware diagram. It can compare
signals between two pins or with either internal reference voltage Vinternal R or internal band-gap reference
voltage. The two signals to be compared, one is the plus input and the other one is the minus input. For the
minus input of comparator can be PA3, PA4, Internal band-gap 1.20V, PB6, PB7 or Vinternal R selected by bit
[3:1] of gpcc register, and the plus input of comparator can be PA4 or Vinternal R selected by bit 0 of gpcc
register.
The comparator result can be selected through gpcs.7 to forcibly output to PA0 whatever input or output
state. It can be a direct output or sampled by Timer2 clock (TM2_CLK) which comes from Timer2 module.
The output polarity can be also inverted by setting gpcc.4 register. The comparator output can be used to
request interrupt service or read through gpcc.6.
16 stages
VDD
8R
8R
8R
gpcs.5=1
gpcs.4=0
R
R
R
R
gpcs.4=1
gpcs.5=0
gpcs[3:0]
MUX
Vinternal R
gpcc[3:1]
PA3/CIN1-
PA4/CIN4-
Band-gap
000
001 M
To request interrupt
gpcc.6
gpcc.4
010 U
011 X
100
X
O
R
-
PB6/CIN2-
PB7/CIN3-
M
U
X
101
+
D
F
F
To
PA0
0
Timer 2
clock
MUX
PA4/CIN+
gpcc.0
1
TM2_CLK
gpcc.5
gpcs.7
Fig. 9: Hardware diagram of comparator
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Page 43 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.12.1. Internal reference voltage (Vinternal R
)
The internal reference voltage Vinternal R is built by series resistance to provide different level of reference
voltage, bit 4 and bit 5 of gpcs register are used to select the maximum and minimum values of Vinternal R and
bit [3:0] of gpcs register are used to select one of the voltage level which is deivided-by-16 from the defined
maximum level to minimum level. Fig. 10 to Fig. 13 shows four conditions to have different reference voltage
Vinternal R. By setting the gpcs register, the internal reference voltage Vinternal R can be ranged from (1/32)*VDD
to (3/4)*VDD.
Case 1 : gpcs.5=0 & gpcs.4=0
16 stages
VDD
8R
8R
8R
gpcs.4=0
gpcs.4=1
gpcs.5=1
R
R
R
R
gpcs.5=0
MUX
gpcs[3:0]
V internal R = (3/4) VDD ~ (1/4) VDD + (1/32) VDD
@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000
1
4
(n+1)
32
V internal R
=
*
VDD +
*
VDD, n = gpcs[3:0] in decimal
Fig. 10: Vinternal R hardware connection if gpcs.5=0 and gpcs.4=0
Case 2 : gpcs.5=0 & gpcs.4= 1
16 stages
VDD
8R
8R
8R
gpcs.4=0
gpcs.4=1
gpcs.5=1
R
R
R
R
gpcs.5=0
MUX
gpcs[3:0]
V internal R = (2/3) VDD ~ (1/24) VDD
@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000
(n+1)
V internal R
=
*
VDD, n = gpcs[3:0] in decimal
24
Fig. 11: Vinternal R hardware connection if gpcs.5=0 and gpcs.4=1
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
Case 3 : gpcs.5=1 & gpcs.4= 0
16 stages
VDD
8R
8R
8R
gpcs.5=1
gpcs.4=0
gpcs.4=1
R
R
R
R
gpcs.5=0
MUX
gpcs[3:0]
V internal R = (3/5) VDD ~ (1/5) VDD + (1/40) VDD
@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000
1
5
(n+1)
40
V internal R
=
*
VDD +
*
VDD, n = gpcs[3:0] in decimal
Fig. 12: Vinternal R hardware connection if gpcs.5=1 and gpcs.4=0
Case 4 : gpcs.5=1 & gpcs.4=1
16 stages
VDD
8R
8R
8R
gpcs.4=0
gpcs.4=1
gpcs.5=1
R
R
R
R
gpcs.5=0
MUX
gpcs[3:0]
V internal R = (1/2) VDD ~ (1/32) VDD
@ gpcs[3:0] = 1111 ~ gpcs[3:0] = 0000
(n+1)
V internal R
=
*
VDD, n = gpcs[3:0] in decimal
32
Fig. 13: Vinternal R hardware connection if gpcs.5=1 and gpcs.4=1
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.12.2. Using the comparator
Case 1:
Choosing PA3 as minus input and Vinternal R with (18/32)*VDD voltage level as plus input. Vinternal R is
configured as the above Figure “gpcs[5:4] = 2b’00” and gpcs [3:0] = 4b’1001 (n=9) to have Vinternal R
(1/4)*VDD + [(9+1)/32]*VDD = [(9+9)/32]*VDD = (18/32)*VDD.
=
gpcs
gpcc
padier
= 0b0_0_00_1001;
= 0b1_0_0_0_000_0;
= 0bxxxx_0_xxx;
// Vinternal R = VDD*(18/32)
// enable comp, - input: PA3, + input: Vinternal R
// disable PA3 digital input to prevent leakage current
or
$ GPCS VDD*18/32;
$ GPCC Enable, N_PA3, P_R;
PADIER = 0bxxxx_0_xxx;
// - input: N_xx,+ input: P_R(Vinternal R)
Case 2:
Choosing Vinternal R as minus input with (22/40)*VDD voltage level and PA4 as plus input, the comparator
result will be inversed and then output to PA0. Vinternal R is configured as the above Figure “gpcs[5:4] =
2b’10” and gpcs [3:0] = 4b’1101 (n=13) to have Vinternal R = (1/5)*VDD + [(13+1)/40]*VDD = [(13+9)/40]*VDD
(22/40)*VDD.
=
gpcs
gpcc
padier
= 0b1_0_10_1101;
= 0b1_0_0_1_011_1;
= 0bxxxx_0_xxx;
// output to PA0, Vinternal R = VDD*(22/40)
// Inverse output, - input: Vinternal R, + input: PA4
// disable PA4 digital input to prevent leakage current
or
$ GPCS Output, VDD*22/40;
$ GPCC Enable, Inverse, N_R, P_PA4; // - input: N_R(Vinternal R),+ input: P_xx
PADIER = 0bxxx_0_xxxx;
Note: When selecting output to PA0 output, GPCS will affect the PA3 output function in ICE. Though the IC
is fine, be careful to avoid this error during emulation.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 46 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.12.3. Using the comparator and band-gap 1.20V
The internal band-gap module provides a stable 1.20V output, and it can be used to measure the external
supply voltage level. The band-gap 1.20V is selected as minus input of comparator and Vinternal R is selected
as plus input, the supply voltage of Vinternal R is VDD, the VDD voltage level can be detected by adjusting the
voltage level of Vinternal R to compare with band-gap. If N (gpcs[3:0] in decimal) is the number to let Vinternal R
closest to band-gap 1.20 volt, the supply voltage VDD can be calculated by using the following equations:
For using Case 1: VDD = [ 32 / (N+9) ] * 1.20 volt ;
For using Case 2: VDD = [ 24 / (N+1) ] * 1.20 volt ;
For using Case 3: VDD = [ 40 / (N+9) ] * 1.20 volt ;
For using Case 4: VDD = [ 32 / (N+1) ] * 1.20 volt ;
Case 1:
$ GPCS VDD*12/40;
// 4.0V * 12/40 = 1.2V
$ GPCC Enable, BANDGAP, P_R; // - input: BANDGAP, + input: P_R(Vinternal R
)
….
if (GPC_Out)
// or GPCC.6
{
// when VDD﹥4V
}
else
{
}
// when VDD﹤4V
©Copyright 2018, PADAUK Technology Co. Ltd
Page 47 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
5.13. 8-bit Timer with PWM generation (Timer2, Timer3)
Two 8-bit hardware timer (Timer2/TM2、Timer3/TM3) with PWM generation is implemented in the PMS154B,
Timer2 is used as the example to describe its function due to these two 8-bit timers are the same. Please
refer to Fig. 14 shown its hardware diagram, the clock sources of Timer2 may come from system clock,
internal high RC oscillator (IHRC) or, internal low RC oscillator (ILRC), external crystal oscillator (EOSC),
PA0, PA4, PB0 or comparator. Bit[7:4] of register tm2c are used to select the clock source of Timer2. Please
notice that if IHRC is selected for Timer2 clock source, the clock sent to Timer2 will keep running when using
ICE in halt state. According to the setting of register tm2c[3:2], Timer2 output can be selectively output to
PB2, PA3 or PB4(Timer3 count output can be selected as PB5, PB6 or PB7). At this point, regardless of
whether PX.x is the input or output state, Timer2( or Timer3) signal will be forced to output. A clock
pre-scaling module is provided with divided-by-1, 4, 16, and 64 options, controlled by bit [6:5] of tm2s
register; one scaling module with divided-by-1~31 is also provided and controlled by bit [4:0] of tm2s register.
In conjunction of pre-scaling function and scaling function, the frequency of Timer2 clock (TM2_CLK) can be
wide range and flexible.
The Timer2 counter performs 8-bit up-counting operation only; the counter values can be set or read back by
tm2ct register. The 8-bit counter will be clear to zero automatically when its values reach for upper bound
register, the upper bound register is used to define the period of timer or duty of PWM. There are two
operating modes for Timer2: period mode and PWM mode; period mode is used to generate periodical
output waveform or interrupt event; PWM mode is used to generate PWM output waveform with optional
6-bit or 8-bit PWM resolution, Fig. 15 shows the timing diagram of Timer2 for both period mode and PWM
mode.
TM2_CLK
tm2s.7
tm2c.1
tm2c[7:4]
tm2s[6:5] tm2s[4:0]
edge to
interrupt
CLK,
M
U
X
IHRC,
ILRC,
EOSC
Cmp,
PA0,
Pre-
scalar
÷
1, 4,
16, 64
Scalar
8-bit
up
counter
tm2ct[7:0]
÷
1 ~ 31
X
O
R
D
E
M
U
X
PB4
PB2
~PA0,
PB0,
~PB0,
PA4,
PA3
upper
bound
register
~PA4
tm2c.0
tm2b[7:0]
tm2c[3:2]
Fig. 14: Timer2 hardware diagram
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
Time out and
Interrupt request
Time out and
Interrupt request
Time out and
Interrupt request
Counter
0xFF
bound
Counter
0xFF
Counter
0x3F
bound
bound
Time
Time
Time
Time
Time
Event Trigger
Event Trigger
Event Trigger
Output-pin
Output-pin
Output-pin
Time
Mode 0 – Period Mode
Mode 1 – 8-bit PWM Mode
Mode 1 – 6-bit PWM Mode
Fig. 15: Timing diagram of Timer2 in period mode and PWM mode (tm2c.1=1)
5.13.1. Using the Timer2 to generate periodical waveform
If periodical mode is selected, the duty cycle of output is always 50%; its frequency can be summarized as
below:
Frequency of Output = Y ÷ [2 × (K+1) × S1 × (S2+1) ]
Where,
Y = tm2c[7:4] : frequency of selected clock source
K = tm2b[7:0] : bound register in decimal
S1 = tm2s[6:5] : pre-scalar (1, 4, 16, 64)
S2 = tm2s[4:0] : scalar register in decimal (1 ~ 31)
Example 1:
tm2c = 0b0001_1000, Y=8MHz
tm2b = 0b0111_1111, K=127
tm2s = 0b0_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ [ 2 × (127+1) × 1 × (0+1) ] = 31.25KHz
Example 2:
Example 3:
tm2c = 0b0001_1000, Y=8MHz
tm2b = 0b0111_1111, K=127
tm2s[7:0] = 0b0_11_11111, S1=64 , S2 = 31
frequency = 8MHz ÷ ( 2 × (127+1) × 64 × (31+1) ) =15.25Hz
tm2c = 0b0001_1000, Y=8MHz
tm2b = 0b0000_1111, K=15
tm2s = 0b0_00_00000, S1=1, S2=0
frequency = 8MHz ÷ ( 2 × (15+1) × 1 × (0+1) ) = 250KHz
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PMS154B
8bit OTP IO IO Controller
Example 4:
tm2c = 0b0001_1000, Y=8MHz
tm2b = 0b0000_0001, K=1
tm2s = 0b0_00_00000, S1=1, S2=0
frequency = 8MHz ÷ ( 2 × (1+1) × 1 × (0+1) ) =2MHz
The sample program for using the Timer2 to generate periodical waveform to PA3 is shown as below:
void FPPA0 (void)
{
. ADJUST_IC
…
SYSCLK=IHRC/2, IHRC=16MHz, VDD=5V
tm2ct = 0x00;
tm2b = 0x7f;
tm2s = 0b0_00_00001;
tm2c = 0b0001_10_0_0;
//
//
8-bit PWM, pre-scalar = 1, scalar = 2
system clock, output=PA3, period mode
while(1)
{
nop;
}
}
5.13.2. Using the Timer2 to generate 8-bit PWM waveform
If 8-bit PWM mode is selected, it should set tm2c[1]=1 and tm2s[7]=0, the frequency and duty cycle of
output waveform can be summarized as below:
Frequency of Output = Y ÷ [256 × S1 × (S2+1) ]
Duty of Output = [( K+1 ) ÷ 256]×100%
Where,
Y = tm2c[7:4] : frequency of selected clock source
K = tm2b[7:0] : bound register in decimal
S1= tm2s[6:5] : pre-scalar (1, 4, 16, 64)
S2 = tm2s[4:0] : scalar register in decimal (1 ~ 31)
Example 1:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0111_1111, K=127
tm2s = 0b0_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25KHz
duty of output = [(127+1) ÷ 256] × 100% = 50%
Example 2:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0111_1111, K=127
tm2s = 0b0_11_11111, S1=64, S2=31
frequency of output = 8MHz ÷ ( 256 × 64 × (31+1) ) = 15.25Hz
duty of output = [(127+1) ÷ 256] × 100% = 50%
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8bit OTP IO IO Controller
Example 3:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b1111_1111, K=255
tm2s = 0b0_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25KHz
duty of output = [(255+1) ÷ 256] × 100% = 100%
Example 4:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0000_1001, K = 9
tm2s = 0b0_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ ( 256 × 1 × (0+1) ) = 31.25KHz
duty of output = [(9+1) ÷ 256] × 100% = 3.9%
The sample program for using the Timer2 to generate PWM waveform from PA3 is shown as below:
void
{
FPPA0 (void)
.ADJUST_IC SYSCLK=IHRC/2, IHRC=16MHz, VDD=5V
wdreset;
tm2ct = 0x00;
tm2b = 0x7f;
tm2s = 0b0_00_00001;
//
//
8-bit PWM, pre-scalar = 1, scalar = 2
system clock, output=PA3, PWM mode
tm2c = 0b0001_10_1_0;
while(1)
{
nop;
}
}
5.13.3.
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8bit OTP IO IO Controller
5.13.4. Using the Timer2 to generate 6-bit PWM waveform
If 6-bit PWM mode is selected, it should set tm2c[1]=1 and tm2s[7]=1, the frequency and duty cycle of
output waveform can be summarized as below:
Frequency of Output = Y ÷ [64 × S1 × (S2+1) ]
Duty of Output = [( K+1 ) ÷ 64] × 100%
Where, tm2c[7:4] = Y : frequency of selected clock source
tm2b[7:0] = K : bound register in decimal
tm2s[6:5] = S1 : pre-scalar (1, 4, 16, 64)
tm2s[4:0] = S2 : scalar register in decimal (1 ~ 31)
Example 1:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0001_1111, K=31
tm2s = 0b1_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125KHz
duty = [(31+1) ÷ 64] × 100% = 50%
Example 2:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0001_1111, K=31
tm2s = 0b1_11_11111, S1=64, S2=31
frequency of output = 8MHz ÷ ( 64 × 64 × (31+1) ) = 61.03Hz
duty of output = [(31+1) ÷ 64] × 100% = 50%
Example 3:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0011_1111, K=63
tm2s = 0b1_00_00000, S1=1, S2=0
frequency of output = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125KHz
duty of output = [(63+1) ÷ 64] × 100% = 100%
Example 4:
tm2c = 0b0001_1010, Y=8MHz
tm2b = 0b0000_0000, K=0
tm2s = 0b1_00_00000, S1=1, S2=0
frequency = 8MHz ÷ ( 64 × 1 × (0+1) ) = 125KHz
duty = [(0+1) ÷ 64] × 100% =1.5%
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8bit OTP IO IO Controller
5.14. 11-bit PWM generation
5.14.1. PWM Waveform
A PWM output waveform (Fig. 16) has a time-base (TPeriod = Time of Period) and a time with output high
level (Duty Cycle). The frequency of the PWM output is the inverse of the period (fPWM = 1/TPeriod), the
resolution of the PWM is the clock count numbers for one period (N bits resolution, 2N × Tclock = TPeriod).
Period
Duty Cycle
clock
‧‧‧‧‧‧‧
N bit resolution
Fig. 16: PWM Output Waveform
5.14.2. Hardware and Timing Diagram
Fig. 17 shows the hardware diagram of 11-bit Timer. The clock source can be IHRC or system clock.
Depending on the setting of register PWMC, PWM can be optionally output to PA0, PB4 or PB5. At this
point, PWM signal will be forced to output regardless of whether PX.x is the input or output state.. The
period of PWM waveform is defined in the PWM upper bond high and low registers, the duty cycle of PWM
waveform is defined in the PWM duty high and low registers.
Fig. 17: Hardware Diagram of 11-bit PWM Generator 0 (PWMG0)
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8bit OTP IO IO Controller
0x7FF
Counter_Bound[10:0]
11-bit
Counter
Duty[10:0]
Time
Output
Time
Output Timing Diagram for 11-bit PWM generation
Fig. 18: Output Timing Diagram of 11-bit PWM Generator
5.14.3. Equations for 11-bit PWM Generator
If FIHRC is the frequency of IHRC oscillator and IHRC is the chosen clock source for 11-bit PWM generator,
the PWM frequency and duty cycle in time will be:
Frequency of PWM Output = FIHRC ÷ [P × (K + 1) × CB ]
Duty Cycle of PWM Output (in time) = (1/FIHRC) * [ DB10_1 + DB0 * 0.5 + 0.5]
Where,
pwms[6:5] = P ; pre-scalar
pwms[4:0] = K ; scalar
Duty_Bound[10:1] = { pwmgxdth [7:0], pwmgxdtl[7:6]} = DB10_1; duty bound
Duty_Bound[0] = pwmgxdtl[5] = DB0
Counter_Bound[10:1] = { pwmgxcubh [7:0], pwmgxcubl [7:6]} = CB; counter bount
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8bit OTP IO IO Controller
6. IO Registers
6.1. ACC Status Flag Register (flag), IO address = 0x00
Bit
7 - 4
3
Reset R/W
Description
-
-
-
Reserved. These four bits are “1” when read.
R/W OV (Overflow). This bit is set whenever the sign operation is overflow.
AC (Auxiliary Carry). There are two conditions to set this bit, the first one is carry out of low
R/W nibble in addition operation, and the other one is borrow from the high nibble into low nibble
in subtraction operation.
2
-
C (Carry). There are two conditions to set this bit, the first one is carry out in addition
R/W operation, and the other one is borrow in subtraction operation. Carry is also affected by
shift with carry instruction.
1
0
-
-
Z (Zero). This bit will be set when the result of arithmetic or logic operation is zero;
R/W
Otherwise, it is cleared.
6.2. Stack Pointer Register (sp), IO address = 0x02
Bit
Reset R/W
Description
Stack Pointer Register. Read out the current stack pointer, or write to change the stack
pointer. Please notice that bit 0 should be kept 0 due to program counter is 16 bits.
7 - 0
-
R/W
6.3. Clock Mode Register (clkmd), IO address = 0x03
Bit
Reset R/W
Description
System clock selection:
Type 0, clkmd[3]=0
Type 1, clkmd[3]=1
000: IHRC/4
001: IHRC/2
010: reserved
011: EOSC/4
100: EOSC/2
101: EOSC
000: IHRC/16
001: IHRC/8
010: ILRC/16 (ICE does NOT Support.)
011: IHRC/32
7 - 5
111 R/W
100: IHRC/64
101: EOSC/8
110: ILRC/4
Others: reserved
111: ILRC (default)
4
3
1
0
R/W IHRC oscillator Enable. 0 / 1: disable / enable
Clock Type Select. This bit is used to select the clock type in bit [7:5].
0 / 1: Type 0 / Type 1
RW
ILRC Enable. 0 / 1: disable / enable
2
1
R/W
If ILRC is disabled, watchdog timer is also disabled.
1
0
1
0
R/W Watch Dog Enable. 0 / 1: disable / enable
R/W Pin PA5/PRST# function. 0 / 1: PA5 / PRST#
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8bit OTP IO IO Controller
6.4. Interrupt Enable Register (inten), IO address = 0x04
Bit
Reset R/W
Description
7
-
-
-
-
-
-
-
-
R/W Enable interrupt from Timer3. 0 / 1: disable / enable.
R/W Enable interrupt from Timer2. 0 / 1: disable / enable.
R/W Enable interrupt from PWMG0. 0 / 1: disable / enable.
R/W Enable interrupt from comparator. 0 / 1: disable / enable.
R/W Reserved.
6
5
4
3
2
R/W Enable interrupt from Timer16 overflow. 0 / 1: disable / enable.
R/W Enable interrupt from PB0. 0 / 1: disable / enable.
R/W Enable interrupt from PA0. 0 / 1: disable / enable.
1
0
6.5. Interrupt Request Register (intrq), IO address = 0x05
Bit
Reset R/W
Description
Interrupt Request from Timer3, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
7
-
-
-
R/W
R/W
R/W
Interrupt Request from Timer2, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
6
5
Interrupt Request from PWMG0, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
Interrupt Request from comparator, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
4
3
2
-
-
-
R/W
-
Reserved.
Interrupt Request from Timer16, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
R/W
Interrupt Request from pin PB0, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
1
0
-
-
R/W
R/W
Interrupt Request from pin PA0, this bit is set by hardware and cleared by software.
0 / 1: No request / Request
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8bit OTP IO IO Controller
6.6. Timer 16 mode Register (t16m), IO address = 0x06
Bit
Reset R/W
Description
Timer Clock source selection
000: Timer 16 is disabled
001: CLK (system clock)
010: reserved
7 - 5
000 R/W 011: PA4 falling edge (from external pin)
100: IHRC
101: EOSC
110: ILRC
111: PA0 falling edge (from external pin)
Internal clock divider.
00: /1
4 - 3
00
R/W 01: /4
10: /16
11: /64
Interrupt source selection. Interrupt event happens when selected bit is changed.
0 : bit 8 of Timer16
1 : bit 9 of Timer16
2 : bit 10 of Timer16
2 - 0
000 R/W 3 : bit 11 of Timer16
4 : bit 12 of Timer16
5 : bit 13 of Timer16
6 : bit 14 of Timer16
7 : bit 15 of Timer16
6.7. External Oscillator setting Register (eoscr, write only), IO address = 0x0a
Bit
Reset R/W
Description
7
0
WO Enable external crystal oscillator. 0 / 1 : Disable / Enable
External crystal oscillator selection.
00 : reserved
6 - 5
00
WO 01 : Low driving capability, for lower frequency, ex: 32KHz crystal oscillator
10 : Middle driving capability, for middle frequency, ex: 1MHz crystal oscillator
11 : High driving capability, for higher frequency, ex: 4MHz crystal oscillator
4 - 1
0
-
-
Reserved. Please keep 0 for future compatibility.
0
WO Power-down the Band-gap and LVR hardware modules. 0 / 1: normal / power-down.
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8bit OTP IO IO Controller
6.8. Interrupt Edge Select Register (integs), IO address = 0x0c
Bit
Reset R/W
Description
7 - 5
-
WO Reserved.
Timer16 edge selection.
WO 0 : rising edge to trigger interrupt
1 : falling edge to trigger interrupt
PB0 edge selection.
4
0
00 : both rising edge and falling edge to trigger interrupt
WO 01 : rising edge to trigger interrupt
10 : falling edge to trigger interrupt
11 : reserved.
3 - 2
00
00
PA0 edge selection.
00 : both rising edge and falling edge to trigger interrupt
WO 01 : rising edge to trigger interrupt
10 : falling edge to trigger interrupt
11 : reserved.
1 - 0
6.9. Port A Digital Input Enable Register (padier), IO address = 0x0d
Bit
Reset R/W
Description
Enable PA7~PA3 wake up event. 1 / 0: enable / disable.
These bits can be set to low to disable wake up from PA7~PA3 toggling.
Reserved.
7 - 3 11111 WO
2 - 1
0
-
-
Enable PA0 wake up event and interrupt request. 1 / 0: enable / disable.
This bit can be set to low to disable wake up from PA0 toggling and interrupt request from
this pin.
1
WO
6.10.Port B Digital Input Enable Register (pbdier), IO address = 0x0e
Bit
Reset R/W
Description
Enable PB7~PB0 wake up event. 1 / 0: enable / disable.
These bits can be set to low to disable wake up from PB7~PB0 toggling.
7 - 0
FF WO
6.11.Port A Data Registers (pa), IO address = 0x10
Bit
Reset R/W
Description
7 - 0 8’h00 R/W Data registers for Port A.
6.12.Port A Control Registers (pac), IO address = 0x11
Bit
Reset R/W
Description
Port A control registers. This register is used to define input mode or output mode for each
corresponding pin of port A. 0 / 1: input / output.
7 - 0 8’h00 R/W
6.13.Port A Pull-High Registers (paph), IO address = 0x12
Bit
Reset R/W
Description
Port A pull-high registers. This register is used to enable the internal pull-high device on
each corresponding pin of port A. 0 / 1 : disable / enable
7 - 0 8’h00 R/W
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8bit OTP IO IO Controller
6.14.Port B Data Registers (pb), IO address = 0x14
Bit
Reset R/W
Description
7 - 0 8’h00 R/W Data registers for Port B.
6.15.Port B Control Registers (pbc), IO address = 0x15
Bit
Reset R/W
Description
Port B control registers. This register is used to define input mode or output mode for each
corresponding pin of port B. 0 / 1: input / output.
7 - 0 8’h00 R/W
6.16.Port B Pull-High Registers (pbph), IO address = 0x16
Bit
Reset R/W
Description
Port B pull-high registers. This register is used to enable the internal pull-high device on
each corresponding pin of port B. 0 / 1 : disable / enable
7 - 0 8’h00 R/W
6.17.MISC Register (misc), IO address = 0x08
Bit
Reset R/W
Description
7 - 6
-
-
Reserved. (keep 0 for future compatibility)
Enable fast Wake up. Fast wake-up is NOT supported when EOSC is enabled.
0: Normal wake up.
5
4
0
WO
The wake-up time is 3000 ILRC clocks (Not for fast boot-up)
1: Fast wake up.
The wake-up time is 45 ILRC clocks.
Enabled VDD/2 for LCD application.
0 / 1 : disabled / enabled (ICE cannot be dynamically switched)
0
WO
If Code Option selects LCD output, but MISC.4 does not set to 1, then the VDD/2 bias
cannot be output on the IC. However, the emulator is always OK. Two above phenomena
are different.
3
2
-
-
Reserved.
Disable LVR function.
0 / 1 : Enable / Disable
Watch dog time out period
00: 8192 ILRC clock period
0
WO
1 - 0
00
WO 01: 16384 ILRC clock period
10: 65536 ILRC clock period
11: 262144 ILRC clock period
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8bit OTP IO IO Controller
6.18.Timer2 Control Register (tm2c), IO address = 0x1c
Bit Reset
R/W
Description
Timer2 clock selection.
0000 : disable
0001 : CLK
0010 : IHRC
0011 : EOSC
0100 : ILRC
0101 : comparator output
1000 : PA0 (rising edge)
1001 : ~PA0 (falling edge)
1010 : PB0 (rising edge)
1011 : ~PB0 (falling edge)
1100 : PA4 (rising edge)
1101 : ~PA4 (falling edge)
Others: reserved
7 - 4
0000 R/W
Notice: In ICE mode and IHRC is selected for Timer2 clock, the clock sent to Timer2
does NOT be stopped, Timer2 will keep counting when ICE is in halt state.
Timer2 output selection.
00 : disable
3 - 2
00
R/W 01 : PB2
10 : PA3
11 : PB4
Timer2 mode selection.
0 / 1 : period mode / PWM mode
Enable to inverse the polarity of Timer2 output.
0 / 1: disable / enable
1
0
0
0
R/W
R/W
6.19.Timer2 Counter Register (tm2ct), IO address = 0x1d
Bit
Reset R/W
Description
7 - 0
0x00 R/W Bit [7:0] of Timer2 counter register.
6.20.Timer2 Scalar Register (tm2s), IO address = 0x17
Bit
Reset R/W
Description
PWM resolution selection.
1 : 6-bit
7
0
WO 0 : 8-bit
Timer2 clock pre-scalar.
00 : ÷ 1
6 - 5
00
WO 01 : ÷ 4
10 : ÷ 16
11 : ÷ 64
4 - 0 00000 WO Timer2 clock scalar.
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8bit OTP IO IO Controller
6.21.Timer2 Bound Register (tm2b), IO address = 0x09
Bit
Reset R/W
Description
7 - 0
0x00 WO Timer2 bound register.
6.22.Timer3 Control Register (tm3c), IO address = 0x32
Bit Reset
R/W
Description
Timer3 clock selection.
0000 : disable
0001 : CLK
0010 : IHRC
0011 : EOSC
0100 : ILRC
0101 : comparator output
1000 : PA0 (rising edge)
1001 : ~PA0 (falling edge)
1010 : PB0 (rising edge)
1011 : ~PB0 (falling edge)
1100 : PA4 (rising edge)
1101 : ~PA4 (falling edge)
Others: reserved
7 - 4
0000 R/W
Notice: In ICE mode and IHRC is selected for Timer3 clock, the clock sent to Timer3
does NOT be stopped, Timer3 will keep counting when ICE is in halt state.
Timer3 output selection.
00 : disable
3 - 2
00
R/W 01 : PB5
10 : PB6
11 : PB7
Timer3 mode selection.
0 / 1 : period mode / PWM mode
Enable to inverse the polarity of Timer3 output.
0 / 1: disable / enable
1
0
0
0
R/W
R/W
6.23.Timer3 Counter Register (tm3ct), IO address = 0x33
Bit
Reset R/W
0x00 R/W Bit [7:0] of Timer2 counter register.
Description
7 - 0
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8bit OTP IO IO Controller
6.24.Timer3 Scalar Register (tm3s), IO address = 0x34
Bit
Reset R/W
Description
PWM resolution selection.
7
0
WO 0 : 8-bit
1 : 6-bit
Timer3 clock pre-scalar.
00 : ÷ 1
6 - 5
00
WO 01 : ÷ 4
10 : ÷ 16
11 : ÷ 64
4 - 0 00000 WO Timer3 clock scalar.
6.25.Timer3 Bound Register (tm3b), IO address = 0x35
Bit
Reset R/W
0x00 WO Timer3 bound register.
Description
7 - 0
6.26.Comparator Control Register (gpcc), IO address = 0x18
Bit
Reset R/W
Description
Enable comparator.
0 / 1 : disable / enable
7
0
R/W
When this bit is set to enable, please also set the corresponding analog input pins to be
digital disable to prevent IO leakage.
Comparator result of comparator.
6
5
4
-
RO 0: plus input < minus input
1: plus input > minus input
Select whether the comparator result output will be sampled by TM2_CLK?
R/W 0: result output NOT sampled by TM2_CLK
1: result output sampled by TM2_CLK
Inverse the polarity of result output of comparator.
R/W 0: polarity is NOT inversed.
1: polarity is inversed.
0
0
Selection the minus input (-) of comparator.
000 : PA3
001 : PA4
010 : Internal 1.20 volt band-gap reference voltage
3 - 1
000
R/W
011 : Vinternal R
100 : PB6 (not for EV5)
101: PB7 (not for EV5)
11X: reserved
Selection the plus input (+) of comparator.
R/W 0 : Vinternal R
0
0
1 : PA4
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8bit OTP IO IO Controller
6.27.Comparator Selection Register (gpcs), IO address = 0x19
Bit
Reset R/W
Description
Comparator output enable (to PA0).
0 / 1 : disable / enable
7
0
WO
(Please avoid this situation: GPCS will affect the PA3 output function when selecting
output to PA0 in ICE.)
Reserved.
6
5
4
-
-
0
0
WO Selection of high range of comparator.
WO Selection of low range of comparator.
Selection the voltage level of comparator.
3 - 0
0000
WO
0000 (lowest) ~ 1111 (highest)
6.28.PWMG0 control Register (pwmg0c), IO address = 0x20
Bit
7
Reset
R/W
R/W
RO
Description
0
-
Enable PWMG0 generator. 0 / 1: disable / enable.
Output status of PWMG0 generator.
6
5
0
R/W
Enable to inverse the polarity of PWMG0 generator output. 0 / 1 : disable / enable.
PWMG0 counter reset.
4
0
R/W
Writing “1” to clear PWMG0 counter.
Select PWM output pin for PWMG0.
000: none
001: PB5
3 - 1
0
0
R/W
R/W
011: PA0
100: PB4
Others: reserved
0
Clock source of PWMG0 generator. 0: CLK*2, 1: IHRC*2
6.29.PWMG0 Scalar Register (pwmg0s), IO address = 0x21
Bit
Reset
R/W
Description
PWMG0 interrupt mode.
7
0
R/W 0: Generate interrupt when counter matches the duty value
1: Generate interrupt when counter is 0
PWMG0 clock pre-scalar.
00 : ÷1
R/W 01 : ÷4
10 : ÷16
6 - 5
4 - 0
0
0
11 : ÷64
R/W PWMG0 clock divider
6.30.PWMG0 Counter Upper Bound High Register (pwmg0cubh), IO address = 0x24
Bit
Reset
R/W
Description
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8bit OTP IO IO Controller
7 - 0
-
WO
Bit[10:3] of PWMG0 counter upper bound.
6.31.PWMG0 Counter Upper Bound Low Register (pwmg0cubl), IO address = 0x25
Bit
Reset
R/W
WO
-
Description
Bit[2:1] of PWMG0 counter upper bound.
Reserved
7 - 6
5 - 0
-
-
6.32.PWMG0 Duty Value High Register (pwmg0dth), IO address = 0x22
Bit
Reset
-
R/W
WO
Description
7 - 0
Duty values bit[10:3] of PWMG0.
6.33.PWMG0 Duty Value Low Register (pwmg0dtl), IO address = 0x23
Bit
Reset
R/W
WO
-
Description
7 - 5
4 - 0
-
-
Duty values bit [2:0] of PWMG0.
Reserved
Note: It’s necessary to write PWMG0 Duty_Value Low Register before writing PWMG0 Duty_Value High Register.
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8bit OTP IO IO Controller
7. Instructions
Symbol
Description
ACC
a
Accumulator ( Abbreviation of accumulator )
Accumulator ( Symbol of accumulator in program )
sp
flag
I
Stack pointer
ACC status flag register
Immediate data
&
Logical AND
|
Logical OR
←
^
Movement
Exclusive logic OR
+
Add
-
〜
〒
OV
Z
Subtraction
NOT (logical complement, 1’s complement)
NEG (2’s complement)
Overflow (The operational result is out of range in signed 2’s complement number system)
Zero (If the result of ALU operation is zero, this bit is set to 1)
Carry (The operational result is to have carry out for addition or to borrow carry for subtraction
in unsigned number system)
C
Auxiliary Carry (If there is a carry out from low nibble after the result of ALU operation, this bit is
set to 1)
AC
IO.n
M.n,
The bit of register
Only addressed in 0~0x3F (0~63) is allowed
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit OTP IO IO Controller
7.1. Data Transfer Instructions
mov
mov
mov
mov
mov
a, I
Move immediate data into ACC.
Example: mov a, 0x0f;
Result: a ← 0fh;
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
M, a
a, M
Move data from ACC into memory
Example: mov
MEM, a;
Result: MEM ← a
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Move data from memory into ACC
Example: mov
a, MEM ;
Result: a ← MEM; Flag Z is set when MEM is zero.
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
a, IO
Move data from IO into ACC
Example: mov
a, pa ;
Result: a ← pa; Flag Z is set when pa is zero.
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
IO, a
Move data from ACC into IO
Example: mov
Result: pa ← a
pa, a;
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Move 16-bit counting values in Timer16 to memory in word.
Example: ldt16 word;
ldt16 word
Result:
word ← 16-bit timer
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
word
…
T16val ;
// declare a RAM word
clear
clear
stt16
…
lb@ T16val ;
hb@ T16val ;
T16val ;
// clear T16val (LSB)
// clear T16val (MSB)
// initial T16 with 0
set1
…
t16m.5 ;
// enable Timer16
set0
ldt16
….
t16m.5 ;
T16val ;
// disable Timer 16
// save the T16 counting value to T16val
------------------------------------------------------------------------------------------------------------------------
©Copyright 2018, PADAUK Technology Co. Ltd
Page 66 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
stt16 word
Store 16-bit data from memory in word to Timer16.
Example: stt16 word;
Result:
16-bit timer ←word
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
word
…
T16val ;
// declare a RAM word
mov
mov
mov
mov
stt16
…
a, 0x34 ;
lb@ T16val , a ; // move 0x34 to T16val (LSB)
a, 0x12 ;
hb@ T16val , a ; // move 0x12 to T16val (MSB)
T16val ;
// initial T16 with 0x1234
----------------------------------------------------------------------------------------------------------------------
idxm a, index Move data from specified memory to ACC by indirect method. It needs 2T to execute this
instruction.
Example: idxm a, index;
Result:
a ← [index], where index is declared by word.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
-----------------------------------------------------------------------------------------------------------------------
word
…
RAMIndex ;
// declare a RAM pointer
mov
mov
mov
mov
…
a, 0x5B ;
// assign pointer to an address (LSB)
// save pointer to RAM (LSB)
lb@RAMIndex, a ;
a, 0x00 ;
// assign 0x00 to an address (MSB), should be 0
hb@RAMIndex, a ; // save pointer to RAM (MSB)
idxm
a, RAMIndex ; // move memory data in address 0x5B to ACC
------------------------------------------------------------------------------------------------------------------------
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
Idxm index, a Move data from ACC to specified memory by indirect method. It needs 2T to execute this
instruction.
Example: idxm index, a;
Result:
[index] ← a; where index is declared by word.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
word
…
RAMIndex ;
// declare a RAM pointer
mov
mov
mov
mov
…
a, 0x5B ;
// assign pointer to an address (LSB)
// save pointer to RAM (LSB)
lb@RAMIndex, a ;
a, 0x00 ;
// assign 0x00 to an address (MSB), should be 0
hb@RAMIndex, a ; // save pointer to RAM (MSB)
mov
idxm
a, 0xA5 ;
RAMIndex, a ;
// move 0xA5 to memory in address 0x5B
------------------------------------------------------------------------------------------------------------------------
Exchange data between ACC and memory
xch
M
Example: xch MEM ;
Result:
MEM ← a , a ← MEM
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Move the ACC and flag register to memory that address specified in the stack pointer.
Example: pushaf;
pushaf
Result:
[sp] ← {flag, ACC};
sp ← sp + 2 ;
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
.romadr 0x10 ;
// ISR entry address
pushaf ;
…
// put ACC and flag into stack memory
// ISR program
…
// ISR program
popaf ;
reti ;
// restore ACC and flag from stack memory
------------------------------------------------------------------------------------------------------------------------
Restore ACC and flag from the memory which address is specified in the stack pointer.
Example: popaf;
popaf
Result:
sp ← sp - 2
{Flag, ACC} ← [sp] ;
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
;
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
7.2. Arithmetic Operation Instructions
add
add
add
a, I
Add immediate data with ACC, then put result into ACC
Example: add a, 0x0f ;
Result: a ← a + 0fh
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
a, M
M, a
Add data in memory with ACC, then put result into ACC
Example: add
a, MEM ;
Result: a ← a + MEM
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Add data in memory with ACC, then put result into memory
Example: add
MEM, a;
Result: MEM ← a + MEM
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
addc a, M
addc M, a
Add data in memory with ACC and carry bit, then put result into ACC
Example: addc
a, MEM ;
Result: a ← a + MEM + C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Add data in memory with ACC and carry bit, then put result into memory
Example: addc
MEM, a ;
Result: MEM ← a + MEM + C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
addc
addc
a
Add carry with ACC, then put result into ACC
Example: addc
a ;
Result: a ← a + C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
M
Add carry with memory, then put result into memory
Example: addc
MEM ;
Result: MEM ← MEM + C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
nadd a, M
nadd M, a
Add negative logic (2’s complement) of ACC with memory
Example: nadd
a, MEM ;
Result: a ← 〒a + MEM
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Add negative logic (2’s complement) of memory with ACC
Example: nadd
MEM, a ;
Result: MEM ← 〒MEM + a
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
sub
sub
a, I
Subtraction immediate data from ACC, then put result into ACC.
Example: sub
a, 0x0f;
Result: a ← a - 0fh ( a + [2’s complement of 0fh] )
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
a, M
Subtraction data in memory from ACC, then put result into ACC
Example: sub
Result: a ← a - MEM ( a + [2’s complement of M] )
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
a, MEM ;
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
sub
M, a
Subtraction data in ACC from memory, then put result into memory
Example: sub
MEM, a;
Result: MEM ← MEM - a ( MEM + [2’s complement of a] )
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
subc a, M
subc M, a
Subtraction data in memory and carry from ACC, then put result into ACC
Example: subc
a, MEM;
Result: a ← a – MEM - C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Subtraction ACC and carry bit from memory, then put result into memory
Example: subc
MEM, a ;
Result: MEM ← MEM – a - C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
subc
subc
inc
a
Subtraction carry from ACC, then put result into ACC
Example: subc
a;
Result: a ← a - C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
M
Subtraction carry from the content of memory, then put result into memory
Example: subc
MEM;
Result: MEM ← MEM - C
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
M
Increment the content of memory
Example: inc
MEM ;
Result: MEM ← MEM + 1
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
dec
M
Decrement the content of memory
Example: dec
MEM;
Result: MEM ← MEM - 1
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
clear
M
Clear the content of memory
Example: clear
Result: MEM ← 0
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
MEM ;
©Copyright 2018, PADAUK Technology Co. Ltd
Page 70 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
7.3. Shift Operation Instructions
sr
a
Shift right of ACC, shift 0 to bit 7
Example: sr a ;
Result: a (0,b7,b6,b5,b4,b3,b2,b1) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b0)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift right of ACC with carry bit 7 to flag
src
sr
a
Example: src a ;
Result: a (c,b7,b6,b5,b4,b3,b2,b1) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b0)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift right the content of memory, shift 0 to bit 7
Example: sr MEM ;
M
Result: MEM(0,b7,b6,b5,b4,b3,b2,b1) ← MEM(b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b0)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift right of memory with carry bit 7 to flag
src
sl
M
Example: src MEM ;
Result: MEM(c,b7,b6,b5,b4,b3,b2,b1) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b0)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift left of ACC shift 0 to bit 0
a
Example: sl a ;
Result: a (b6,b5,b4,b3,b2,b1,b0,0) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a (b7)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift left of ACC with carry bit 0 to flag
slc
sl
a
Example: slc a ;
Result: a (b6,b5,b4,b3,b2,b1,b0,c) ← a (b7,b6,b5,b4,b3,b2,b1,b0), C ← a(b7)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift left of memory, shift 0 to bit 0
M
Example: sl MEM ;
Result: MEM (b6,b5,b4,b3,b2,b1,b0,0) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM(b7)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Shift left of memory with carry bit 0 to flag
slc
M
Example: slc MEM ;
Result: MEM (b6,b5,b4,b3,b2,b1,b0,C) ← MEM (b7,b6,b5,b4,b3,b2,b1,b0), C ← MEM (b7)
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Swap the high nibble and low nibble of ACC
swap
a
Example: swap
Result: a (b3,b2,b1,b0,b7,b6,b5,b4) ← a (b7,b6,b5,b4,b3,b2,b1,b0)
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
a ;
©Copyright 2018, PADAUK Technology Co. Ltd
Page 71 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
7.4. Logic Operation Instructions
and
and
and
or
a, I
a, M
M, a
a, I
Perform logic AND on ACC and immediate data, then put result into ACC
Example: and a, 0x0f ;
Result: a ← a & 0fh
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Perform logic AND on ACC and memory, then put result into ACC
Example: and
a, RAM10 ;
Result: a ← a & RAM10
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Perform logic AND on ACC and memory, then put result into memory
Example: and
MEM, a ;
Result: MEM ← a & MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Perform logic OR on ACC and immediate data, then put result into ACC
Example: or
a, 0x0f ;
Result: a ← a | 0fh
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
or
a, M
Perform logic OR on ACC and memory, then put result into ACC
Example: or
a, MEM ;
Result: a ← a | MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
or
M, a
a, I
Perform logic OR on ACC and memory, then put result into memory
Example: or
MEM, a ;
Result: MEM ← a | MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
xor
xor
Perform logic XOR on ACC and immediate data, then put result into ACC
Example: xor
a, 0x0f ;
Result: a ← a ^ 0fh
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
IO, a
Perform logic XOR on ACC and IO register, then put result into IO register
Example: xor
pa, a ;
Result: pa ← a ^ pa ; // pa is the data register of port A
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
xor
xor
a, M
M, a
Perform logic XOR on ACC and memory, then put result into ACC
Example: xor
a, MEM ;
Result: a ← a ^ RAM10
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Perform logic XOR on ACC and memory, then put result into memory
Example:
xor
MEM, a ;
Result:
MEM ← a ^ MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
not
a
Perform 1’s complement (logical complement) of ACC
Example: not a ;
Result: a ← 〜a
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
mov
not
a, 0x38 ;
a ;
// ACC=0X38
// ACC=0XC7
------------------------------------------------------------------------------------------------------------------------
Perform 1’s complement (logical complement) of memory
not
M
Example: not
MEM ;
Result: MEM ← 〜MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
mov
mov
not
a, 0x38 ;
mem, a ;
mem ;
// mem = 0x38
// mem = 0xC7
------------------------------------------------------------------------------------------------------------------------
Perform 2’s complement of ACC
neg
a
Example: neg
a;
Result: a ← 〒a
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
mov
neg
a, 0x38 ;
a ;
// ACC=0X38
// ACC=0XC8
------------------------------------------------------------------------------------------------------------------------
Perform 2’s complement of memory
neg
M
Example: neg
MEM;
Result: MEM ← 〒MEM
Affected flags: 『Y』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
mov
mov
not
a, 0x38 ;
mem, a ;
mem ;
// mem = 0x38
// mem = 0xC8
------------------------------------------------------------------------------------------------------------------------
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
comp
a, M
Compare ACC with the content of memory
Example: comp a, MEM;
Result: Flag will be changed by regarding as ( a - MEM )
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
mov
mov
comp
mov
mov
mov
comp
a, 0x38 ;
mem, a ;
a, mem ; // Z flag is set
a, 0x42 ;
mem, a ;
a, 0x38 ;
a, mem ; // C flag is set
------------------------------------------------------------------------------------------------------------------------
Compare ACC with the content of memory
comp
M, a
Example: comp
Result: Flag will be changed by regarding as ( MEM - a )
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
MEM, a;
7.5. Bit Operation Instructions
set0 IO.n
set1 IO.n
set0 M.n
set1 M.n
Set bit n of IO port to low
Example: set0 pa.5 ;
Result:
set bit 5 of port A to low
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Set bit n of IO port to high
Example: set1 pa.5 ;
Result:
set bit 5 of port A to high
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Set bit n of memory to low
Example: set0 MEM.5 ;
Result:
set bit 5 of MEM to low
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Set bit n of memory to high
Example: set1 MEM.5 ;
Result:
set bit 5 of MEM to high
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
swapc IO.n
Swap the nth bit of IO port with carry bit
Example: swapc IO.0;
Result: C ← IO.0 , IO.0 ← C
When IO.0 is a port to output pin, carry C will be sent to IO.0;
When IO.0 is a port from input pin, IO.0 will be sent to carry C;
Affected flags: 『N』Z 『Y』C 『N』AC 『N』OV
Application Example1 (serial output) :
------------------------------------------------------------------------------------------------------------------------
...
set1
...
pac.0 ;
// set PA.0 as output
set0
swapc
set1
swapc
...
flag.1 ;
pa.0 ;
// C=0
// move C to PA.0 (bit operation), PA.0=0
// C=1
flag.1 ;
pa.0 ;
// move C to PA.0 (bit operation), PA.0=1
------------------------------------------------------------------------------------------------------------------------
Application Example2 (serial input) :
------------------------------------------------------------------------------------------------------------------------
...
set0
...
pac.0 ;
// set PA.0 as input
swapc
src
pa.0 ;
a ;
// read PA.0 to C (bit operation)
// shift C to bit 7 of ACC
swapc
src
pa.0 ;
a ;
// read PA.0 to C (bit operation)
// shift new C to bit 7, old C
...
------------------------------------------------------------------------------------------------------------------------
©Copyright 2018, PADAUK Technology Co. Ltd
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PMS154B
8bit OTP IO IO Controller
7.6. Conditional Operation Instructions
ceqsn a, I
Compare ACC with immediate data and skip next instruction if both are equal.
Flag will be changed like as (a ← a - I)
Example: ceqsn
a, 0x55 ;
MEM ;
inc
goto
error ;
Result: If a=0x55, then “goto error”; otherwise, “inc MEM”.
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Compare ACC with memory and skip next instruction if both are equal.
Flag will be changed like as (a ← a - M)
ceqsn a, M
cneqsn a, M
cneqsn a, I
Example: ceqsn
a, MEM;
Result: If a=MEM, skip next instruction
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Compare ACC with memory and skip next instruction if both are not equal.
Flag will be changed like as (a ← a - M)
Example: cneqsn
a, MEM;
Result: If a≠MEM, skip next instruction
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Compare ACC with immediate data and skip next instruction if both are no equal.
Flag will be changed like as (a ← a - I)
Example: cneqsn
a,0x55 ;
MEM ;
error ;
inc
goto
Result: If a≠0x55, then “goto error”; Otherwise, “inc MEM”.
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
Check IO bit and skip next instruction if it’s low
t0sn IO.n
t1sn IO.n
Example: t0sn
pa.5;
Result: If bit 5 of port A is low, skip next instruction
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Check IO bit and skip next instruction if it’s high
Example: t1sn
pa.5 ;
Result: If bit 5 of port A is high, skip next instruction
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
t0sn M.n
t1sn M.n
Check memory bit and skip next instruction if it’s low
Example: t0sn MEM.5 ;
Result: If bit 5 of MEM is low, then skip next instruction
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Check memory bit and skip next instruction if it’s high
Example: t1sn MEM.5 ;
Result: If bit 5 of MEM is high, then skip next instruction
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Increment ACC and skip next instruction if ACC is zero
izsn
dzsn
izsn
dzsn
a
Example: izsn
Result:
a;
a
←
a + 1,skip next instruction if a = 0
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
a
Decrement ACC and skip next instruction if ACC is zero
Example: dzsn
Result:
a;
A
←
A - 1,skip next instruction if a = 0
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
M
Increment memory and skip next instruction if memory is zero
Example: izsn
Result: MEM
MEM;
MEM + 1, skip next instruction if MEM= 0
←
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
M
Decrement memory and skip next instruction if memory is zero
Example: dzsn
Result: MEM
Affected flags: 『Y』Z 『Y』C 『Y』AC 『Y』OV
MEM;
←
MEM - 1, skip next instruction if MEM = 0
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
7.7. System control Instructions
call
label
Function call, address can be full range address space
Example: call
function1;
pc + 1
Result: [sp]
←
pc
sp
←
←
function1
sp + 2
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
goto label
Go to specific address which can be full range address space
Example: goto
error;
Result: Go to error and execute program.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Place immediate data to ACC, then return
Example: ret 0x55;
ret
ret
I
Result:
A ← 55h
ret ;
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Return to program which had function call
Example: ret;
Result: sp ← sp - 2
pc ← [sp]
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
reti
Return to program that is interrupt service routine. After this command is executed, global
interrupt is enabled automatically.
Example: reti;
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
nop
No operation
Example: nop;
Result: nothing changed
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
pcadd
a
Next program counter is current program counter plus ACC.
Example: pcadd a;
Result: pc ← pc + a
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Application Example:
------------------------------------------------------------------------------------------------------------------------
…
mov
pcadd
goto
goto
goto
goto
…
a, 0x02 ;
a ;
// PC <- PC+2
// jump here
err1 ;
correct ;
err2 ;
err3 ;
correct:
…
// jump here
------------------------------------------------------------------------------------------------------------------------
©Copyright 2018, PADAUK Technology Co. Ltd
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PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
engint
Enable global interrupt enable
Example: engint;
Result: Interrupt request can be sent to FPP0
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Disable global interrupt enable
disgint
stopsys
stopexe
Example: disgint ;
Result: Interrupt request is blocked from FPP0
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
System halt.
Example: stopsys;
Result: Stop the system clocks and halt the system
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
CPU halt. The oscillator module is still active to output clock, however, system clock is disabled
to save power.
Example: stopexe;
Result: Stop the system clocks and keep oscillator modules active.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Reset the whole chip, its operation will be same as hardware reset.
Example: reset;
reset
Result: Reset the whole chip.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
Reset Watchdog timer.
wdreset
Example: wdreset ;
Result: Reset Watchdog timer.
Affected flags: 『N』Z 『N』C 『N』AC 『N』OV
7.8. Summary of Instructions Execution Cycle
goto, call, idxm, pcadd, ret, reti
2T
2T
1T
1T
Condition is fulfilled.
ceqsn, cneqsn,t0sn, t1sn, dzsn, izsn
Condition is not fulfilled.
Others
©Copyright 2018, PADAUK Technology Co. Ltd
Page 79 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
7.9. Summary of affected flags by Instructions
Instruction
mov a, I
Z
-
C
-
AC OV Instruction
Z
-
C
-
AC OV Instruction
Z
Y
-
C
-
AC OV
-
-
-
-
mov M, a
mov IO, a
idxm a, index
pushaf
-
-
-
-
mov a, M
ldt16 word
idxm index, a
popaf
-
-
-
-
mov a, IO
stt16 word
Y
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
xch
M
-
-
-
-
-
-
-
-
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
-
add a, I
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
Y
-
add a, M
addc M, a
sub a, I
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
-
Y
Y
Y
Y
Y
-
add M, a
addc a, M
addc
a
addc
M
sub a, M
sub M, a
subc a, M
subc M, a
subc
dec
src
a
subc
clear
M
M
inc
sr a
src
sl
M
M
M
a
sr
M
-
Y
Y
-
-
-
-
-
-
sl
a
-
-
-
slc
a
-
-
-
M
-
-
-
slc
and
M
-
-
-
swap
and
a
-
-
-
and
a, I
Y
Y
Y
Y
Y
-
-
-
a, M
Y
Y
-
-
-
M, a
Y
Y
Y
Y
-
-
-
-
or a, I
-
-
-
or a, M
-
-
-
or M, a
-
-
-
xor
xor
neg
a, I
-
-
-
xor
not
neg
IO, a
-
-
-
xor
not
a, M
-
-
-
M, a
a
-
-
-
a
Y
Y
-
-
-
-
M
-
-
-
-
-
-
M
-
-
-
set0 IO.n
set1 M.n
t0sn IO.n
t1sn M.n
-
-
-
set1 IO.n
ceqsn a, I
t1sn IO.n
-
-
-
set0 M.n
ceqsn a, M
t0sn M.n
-
-
-
-
-
-
-
Y
-
Y
-
Y
-
Y
-
Y
-
Y
-
Y
-
Y
-
-
-
-
-
-
-
-
-
izsn
dzsn
ret
a
Y
Y
-
Y
Y
-
Y
Y
-
Y
Y
-
dzsn
call
a
Y
-
Y
-
Y
-
Y
-
izsn
M
Y
-
Y
-
Y
-
Y
-
M
label
goto label
reti
I
ret
-
-
-
-
-
-
-
-
nop
-
-
-
-
pcadd
a
-
-
-
-
engint
-
-
-
-
disgint
-
-
-
-
stopsys
-
-
-
-
-
-
-
-
stopexe
-
Y
Y
-
-
-
Y
Y
-
-
Y
Y
-
reset
-
-
-
-
nadd M, a
cneqsn a, I
nadd a, M
wdreset
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
cneqsn a, M
comp a, M
swapc IO.n
Y
Y
Y
Y
Y
Y
Y
Y
comp
M, a
7.10. BIT definition
Bit defined: Only addressed at 0x00 ~ 0x3F.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 80 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
8. Code Options
Option
Selection
Description
Enable
Disable
4.0V
Security Enable
Security
Security Disable
Select LVR = 4.0V
3.5V
Select LVR = 3.5V
3.0V
Select LVR = 3.0V
2.75V
2.5V
Select LVR = 2.75V
LVR
Select LVR = 2.5V
2.2V
Select LVR = 2.2V
2.0V
Select LVR = 2.0V
1.8V
Select LVR = 1.8V
Slow
Fast
Please refer to tWUP and tSBP in Section 4.1
Please refer to tWUP and tSBP in Section 4.1
IO Low driving and sinking current
IO Normal driving and sinking current
Boot-up_Time
Low
Drive
LCD2
Normal
Disable
VDD/2 bias voltage generator disabled, PB0 PA[0,3,4] are normal IO pins
(please refer to
MISC.4)
PB0_A034 VDD/2 bias voltage generator enabled, PB0 PA[0,3,4] are VDD/2 if input mode
©Copyright 2018, PADAUK Technology Co. Ltd
Page 81 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
9. Special Notes
This chapter is to remind user who use PMS154B series IC in order to avoid frequent errors upon operation.
9.1. Warning
User must read all application notes of the IC by detail before using it. Please download the related
application notes from the following link: http://www.padauk.com.tw/tw/technical/index.aspx
9.2. Using IC
9.2.1. IO pin usage and setting
(1) IO pin as digital input
When IO is set as digital input, the level of Vih and Vil would changes with the voltage and temperature.
Please follow the minimum value of Vih and the maximum value of Vil.
The value of internal pull high resistor would also changes with the voltage, temperature and pin
voltage. It is not the fixed value.
(2) If IO pin is set to be digital input and enable wake-up function
Configure IO pin as input.
Set corresponding bit to “1” in PXDIER.
For those IO pins of PA that are not used, PADIER[1:2] should be set low in order to prevent them from
leakage.
(3) PA5 is set to be output pin
PA5 can be set to be Open-Drain output pin only, output high requires adding pull-up resistor.
(4) PA5 is set to be PRST# input pin
Configure PA5 as input
Set CLKMD.0=1 to enable PA5 as PRST# input pin
(5) PA5 is set to be input pin and to connect with a push button or a switch by a long wire
Needs to put a >10Ω resistor in between PA5 and the long wire
Avoid using PA5 as input in such application.
(6) PA7 and PA6 as external crystal oscillator
Configure PA7 and PA6 as input
Disable PA7 and PA6 internal pull-up resistor
Configure PADIER register to set PA6 and PA7 as analog input
EOSCR register bit [6:5] selects corresponding crystal oscillator frequency :
01 : for lower frequency, ex : 32KHz
10 : for middle frequency, ex : 455KHz, 1MHz
11 : for higher frequency, ex : 4MHz
©Copyright 2018, PADAUK Technology Co. Ltd
Page 82 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
Program EOSCR.7 =1 to enable crystal oscillator
Ensure EOSC working well before switching from IHRC or ILRC to EOSC
Note: Please read the PMC-APN013 carefully. According to PMC-APN013,, the crystal oscillator should
be used reasonably. If the following situations happen to cause IC start-up slowly or non-startup, PADAUK
Technology is not responsible for this: the quality of the user's crystal oscillator is not good, the usage
conditions are unreasonable, the PCB cleaner leakage current, or the PCB layouts are unreasonable.
9.2.2. Interrupt
(1) When using the interrupt function, the procedure should be:
Step1: Set INTEN register, enable the interrupt control bit
Step2: Clear INTRQ register
Step3: In the main program, using ENGINT to enable CPU interrupt function
Step4: Wait for interrupt. When interrupt occurs, enter to Interrupt Service Routine
Step5: After the Interrupt Service Routine being executed, return to the main program
* Use DISGINT in the main program to disable all interrupts
* When interrupt service routine starts, use PUSHAF instruction to save ALU and FLAG
register. POPAF instruction is to restore ALU and FLAG register before RETI as below:
void Interrupt (void)
{
// Once the interrupt occurs, jump to interrupt service routine
// enter DISGINT status automatically, no more interrupt is
accepted
PUSHAF;
…
POPAF;
}
// RETI will be added automatically. After RETI being executed, ENGINT status
will be restored
(2) INTEN and INTRQ have no initial values. Please set required value before enabling interrupt function.
9.2.3. System clock switching
System clock can be switched by CLKMD register. Please notice that, NEVER switch the system clock and
turn off the original clock source at the same time. For example: When switching from clock A to clock B,
please switch to clock B first; and after that turn off the clock A oscillator through CLKMD.
Example : Switch system clock from ILRC to IHRC/2
CLKMD
=
0x36;
0;
// switch to IHRC, ILRC can not be disabled here
CLKMD.2 =
// ILRC can be disabled at this time
ERROR: Switch ILRC to IHRC and turn off ILRC simultaneously
CLKMD 0x50; // MCU will hang
=
9.2.4. Watchdog
Watchdog will be inactive once ILRC is disabled.
©Copyright 2018, PADAUK Technology Co. Ltd
Page 83 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
9.2.5. TIMER time out
When select $ INTEGS BIT_R (default value) and T16M counter BIT8 to generate interrupt, if T16M
counts from 0, the first interrupt will occur when the counter reaches to 0x100 (BIT8 from 0 to 1) and the
second interrupt will occur when the counter reaches 0x300 (BIT8 from 0 to 1). Therefore, selecting BIT8 as
1 to generate interrupt means that the interrupt occurs every 512 counts. Please notice that if T16M counter
is restarted, the next interrupt will occur once Bit8 turns from 0 to 1.
If select $ INTEGS BIT_F(BIT triggers from 1 to 0) and T16M counter BIT8 to generate interrupt, the T16M
counter changes to an interrupt every 0x200/0x400/0x600/. Please pay attention to two differences with
setting INTEGS methods.
9.2.6. IHRC
(1)
The IHRC frequency calibration is performed when IC is programmed by the writer.
Because the characteristic of the Epoxy Molding Compound (EMC) would some degrees affects the
IHRC frequency (either for package or COB), if the calibration is done before molding process, the
actual IHRC frequency after molding may be deviated or becomes out of spec. Normally , the
frequency is getting slower a bit.
(2)
(3)
(4)
It usually happens in COB package or Quick Turnover Programming (QTP). And PADAUK would not
take any responsibility for this situation.
Users can make some compensatory adjustments according to their own experiences. For example,
users can set IHRC frequency to be 0.5% ~ 1% higher and aim to get better re-targeting after molding.
9.2.7. LVR
User can set MISC.2 as “1” to disable LVR. However, VDD must be kept as exceeding the lowest working
voltage of chip; Otherwise IC may work abnormally.
9.2.8. Program writing
There are 6 pins for using the writer to program: PA3, PA4, PA5, PA6, VDD, and GND.
Please use PDK3S-P-002 to program and put the PMS154B-S14 to move down one space over the CN39.
Put the PMS154B-M10 to move down three spaces over it. Put the PMS154B-S08 to move down four
spaces over it. Other packages could be programmed by user’s way. All the left signs behind the jumper are
the same (there are VDD, PA0(not required), PA3, PA4, PA5, PA6, PA7(not required), and GND).The
following picture is shown:
©Copyright 2018, PADAUK Technology Co. Ltd
Page 84 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
PMS154B
8bit OTP IO IO Controller
If user use PDK5S-P-003 or above to program, please follow the instruction.
Special notes about voltage and current while Multi-Chip-Package(MCP) or On-Board Programming
(1)PA5 (VPP) may be higher than 11V.
(2)VDD may be higher than 6.5V, and its maximum current may reach about 20mA.
(3)All other signal pins level (except GND) are the same as VDD..
User should confirm when using this product in MCP or On-Board Programming, the peripheral circuit or
components will not be destroyed or limit the above voltages.
9.3. Using ICE
(1) It is recommended to use PDK5S-I-S01/2(B) for emulation of PMS154B.
(2) PDK5S-I-S01/2(B) supports PMS154B 1-FPPA MCU emulation work, the following items should be
noted when using PDK5S-I-S01/2(B) to emulate PMS154B:
PDK5S-I-S01/2(B) doesn’t support the instruction NADD/COMP of PMS154B.
PDK5S-I-S01/2(B) doesn’t support SYSCLK=ILRC/16 of PMS154B.
PDK5S-I-S01/2(B) doesn’t support the function MISC.LCD_Enable=1(open LCD) of PMS154B.
PDK5S-I-S01/2(B) doesn’t support the dynamic setting of function misc.4 (Only fix to 0 or 1).
PDK5S-I-S01/2(B) doesn’t support the function TM2.GPCRS/TM3.GPCRS of PMS154B
The PA3 output function will be affected when GPCS selects output to PA0.
Fast Wakeup time is different from PDK5S-I-S01/2(B): 128 SysClk, PMS154B: 45 ILRC
Watch dog time out period is different from PDK5S-I-S01/2(B):
WDT period
misc[1:0]=00
misc[1:0]=01
misc[1:0]=10
misc[1:0]=11
PDK5S-I-S01/2(B)
2048 * TILRC
PMS154B
8k * TILRC
4096 * TILRC
16k * TILRC
64k * TILRC
256k * TILRC
16384 * TILRC
256 * TILRC
©Copyright 2018, PADAUK Technology Co. Ltd
Page 85 of 85
PDK-DS-PMS154B-EN-V102 – Nov. 27, 2018
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