CY7C65620-56LTXCT_技术文档

CY7C656xx

EZ-USB HX2LP™

Low Power USB 2.0 Hub Controller Family

■ Integrated Upstream and Downstream Termination Resistors

■ Integrated Port Status Indicator Control

Features

■ USB 2.0 Hub Controller

■ 24 MHz External Crystal (Integrated PLL)

■ Automotive AEC Grade Option (–40°C to 85°C)

■ Compliant with the USB 2.0 Specification

■ USB-IF Certified: TID# 30000009

■ In-system EEPROM Programming

■ Configurable with External SPI EEPROM:

❐ Vendor ID, Product ID, Device ID (VID/PID/DID)

❐ Number of active ports

❐ Number of removable ports

❐ Maximum power setting for high speed and full speed

❐ Hub controller power setting

❐ Power on timer

❐ Overcurrent detection mode

❐ Enabled and disabled overcurrent timer

❐ Overcurrent pin polarity

■ Windows Hardware Quality Lab (WHQL) Compliant

■ Up to Four Downstream Ports Supported

■ Supports Bus Powered and Self Powered Modes

■ Single Transaction Translator (TT)

■ Bus Power Configurations

■ Fit, Form, and Function Compatible with CY7C65640 and

CY7C65640A (TetraHub™)

❐ Indicator pin polarity

❐ Compound device

❐ Enable full speed only

❐ Disable port indicators

■ Space Saving 56-pin QFN

■ Single Power Supply requirement

❐ Internal regulator for reduced cost

❐ Ganged power switching

❐ Self and bus powered compatibility

❐ Fully configurable string descriptors for multiple language

support

■ Integrated Upstream Pull Up Resistor

■ Integrated Pull Down Resistors for All Downstream Ports

Block Diagram CY7C65630

D+

D -

High-Speed

USB Control Logic

USB 2.0 PHY

PLL

Serial

Interface

Engine

24 MHz

Crystal

SPI_SCK

SPI_SD

SPI_CS

SPI Communication

Block

USB Upstream Port

Transaction Translator

TT RAM

Hub Repeater

Routing Logic

USB Downstream Port 1

USB Downstream Port 2

USB Downstream Port 3

USB Downstream Port 4

USB 2.0

PHY

Port

Status

Port Power

Control

USB 2.0 Port Power

PHY

Control

Port

Status

USB 2.0 Port Power

PHY

Control

Port

Status

USB 2.0 Port Power

PHY

Control

Port

Status

D+ D- PWR#[4]

LED

D+ D- PWR#[3]

OVR#[3]

LED

D+ D- PWR#[1]

OVR#[1]

LED D+ D- PWR#[2]

LED

OVR#[2]

OVR#[4]

Cypress Semiconductor Corporation

Document Number: 38-08037 Rev. *M

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised June 12, 2009

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CY7C656xx

Block Diagram CY7C65620

D+

D -

High-Speed

USB Control Logic

USB 2.0 PHY

PLL

Serial

Interface

Engine

24 MHz

Crystal

SPI_SCK

SPI_SD

SPI_CS

SPI Communication

Block

USB Upstream Port

Transaction Translator (X1)

TT RAM

Hub Repeater

Routing Logic

USB Downstream Port 1

USB Downstream Port 2

USB 2.0

PHY

Port

Status

Port Power

Control

USB 2.0 Port Power

PHY Control

Port

Status

D+ D- PWR#[1]

LED

D+ D- PWR#[2]

OVR#[2]

LED

OVR#[1]

Document Number: 38-08037 Rev. *M

Page 2 of 25

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CY7C656xx

Hub Repeater

Introduction

The Hub Repeater manages the connectivity between upstream

and downstream facing ports that are operating at the same

speed. It supports full or low speed connectivity and high speed

connectivity. According to the USB 2.0 specification, the HUB

Repeater provides the following functions:

EZ-USB HX2LP™ is Cypress’s next generation family of high

performance, low power USB 2.0 hub controllers. HX2LP is an

ultra low power single chip USB 2.0 hub controller with integrated

upstream and downstream transceivers, a USB Serial Interface

Engine (SIE), USB Hub Control and Repeater logic, and Trans-

action Translator (TT) logic. Cypress has also integrated many

of the external passive components, such as pull up and pull

down resistors, reducing the overall bill of materials required to

implement a hub design. The HX2LP portfolio consists of:

■ Sets up and tears down connectivity on packet boundaries

■ Ensures orderly entry into and out of the Suspend state,

including proper handling of remote wakeups.

1. CY7C65630: 4-port/single transaction translator

Transaction Translator

This device option is for ultra low power applications that require

four downstream ports. All four ports share a single transaction

translator. The CY7C65630 is available in 56 QFN and is also

pin-for-pin compatible with the CY7C65640.

The Transaction Translator translates data from one speed to

another. A TT takes high speed split transactions and translates

them to full or low speed transactions when the hub is operating

at high speed (the upstream port is connected to a high speed

host controller) and has full or low speed devices attached. The

operating speed of a device attached on a downstream facing

port determines whether the Routing Logic connects a port to the

TT or Hub Repeater. If a full or low speed device is connected to

the hub operating at high speed, the data transfer route includes

the TT. If a high speed device is connected to this high speed

hub, the route only includes the repeater and no TT, because the

device and the hub are operating at the same speed. When the

hub is operating at full speed (the upstream port is connected to

a full speed host controller), a high speed peripheral does not

operate at its full capability. These devices only work at full

speed. Full and low speed devices connected to this hub operate

at their normal speed.

2. CY7C65620:

This device option is for a 2-port bus powered application. Both

ports share a single transaction translator. The CY7C65620 is

available in a 56 QFN.

All device options are supported by Cypress’s world class

reference design kits, which include board schematics, bill of

materials, Gerber files, Orcad files, and thorough design

documentation.

USB Serial Interface Engine

The Serial Interface Engine (SIE) allows the CY7C656xx to

communicate with the USB host. The SIE handles the following

USB activities independently of the Hub Control Block.

Applications

■ Bit stuffing/unstuffing

Typical applications for the HX2LP device family are:

■ Standalone hubs

■ Checksum generation/checking

■ TOKEN type identification

■ Address checking.

■ Motherboard hubs

■ Monitor hubs

■ Advanced port replicators

■ Docking stations

■ Split-PC designs

■ External personal storage drives

■ Keyboard hubs

Document Number: 38-08037 Rev. *M

Page 3 of 25

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CY7C656xx

Babble consists of a non idle condition on the port after EOF2. If

babble is detected on an enabled port, that port is disabled. A

ClearPortEnable request from the host also disables the

specified port.

Functional Overview

The Cypress CY7C656xx USB 2.0 Hubs are high performance,

low system cost solutions for USB. The CY7C656xx USB 2.0

Hubs integrate 1.5 kΩ upstream pull up resistors for full speed

operation and all downstream 15 kΩ pull down resistors and

series termination resistors on all upstream and downstream D+

and D– pins. This results in optimization of system costs by

providing built-in support for the USB 2.0 specification.

Downstream ports can be individually suspended by the host

with the SetPortSuspend request. If the hub is not suspended, a

remote wakeup event on that port is reflected to the host through

a port change indication in the Hub Status Change Endpoint. If

the hub is suspended, a remote wakeup event on this port is

forwarded to the host. The host may resume the port by sending

a ClearPortSuspend command.

System Initialization

On power up, the CY7C656xx reads an external SPI EEPROM

for configuration information. At the most basic level, this

EEPROM has the Vendor ID (VID), Product ID (PID), and Device

ID (DID) for the customer's application. For more specialized

applications, other configuration options can be specified. See

Configuration Options on page 12 for more details.

Upstream Port

The upstream port includes the transmitter and the receiver state

machine. The transmitter and receiver operate in high speed and

full speed depending on the current hub configuration.

After reading the EEPROM, if VBUSPOWER (connected to

up-stream V_BUS) is high, CY7C656xx enables the pull up resistor

on D+ to indicate its presence to the upstream hub, after which

a USB Bus Reset is expected. During this reset, CY7C656xx

initiates a chirp to indicate that it is a high speed peripheral. In a

USB 2.0 system, the upstream hub responds with a chirp

sequence, and CY7C656xx is in a high speed mode, with the

upstream D+ pull up resistor turned off. In USB 1.x systems, no

such chirp sequence from the upstream hub is seen, and

CY7C656xx operates as a normal 1.x hub (operating at full

speed).

The transmitter state machine monitors the upstream facing port

while the Hub Repeater has connectivity in the upstream

direction. This machine prevents babble and disconnect events

on the downstream facing ports of this hub from propagating and

causing the hub to be disabled or disconnected by the hub to

which it is attached.

Power Switching

The CY7C656xx includes interface signals for external port

power switches. Both ganged and individual (per-port) configu-

rations are supported, with individual switching being the default.

Initially all ports are unpowered. After enumerating, the host may

power each port by sending a SetPortPower request for that port.

The power switching and overcurrent detection of downstream

ports is managed by control pins connected to an external power

Enumeration

After a USB Bus Reset, CY7C656xx is in an unaddressed,

unconfigured state (configuration value set to ’0’). During the

enumeration process, the host sets the hub's address and

configuration.

switch device. PWR [n]# output pins of the CY7C656xx series

are connected to the respective external power switch's port

power enable signals. Note that each port power output pin of

the external power switch must be bypassed with an electrolytic

or tantalum capacitor as required by the USB specification.

These capacitors supply the inrush currents, which occur during

downstream device hot-attach events. The polarity of this pin is

configured through the EEPROM; see Configuration Options on

page 12.

After the hub is configured, the full hub functionality is available.

Downstream Ports

The CY7C656xx supports a maximum of four downstream ports,

each of which may be marked as usable or removable in the

extended configuration (0xD2 EEPROM load or 0xD4 EEPROM

load, see Configuration Options on page 12. Downstream D+

and D– pull down resistors are incorporated in CY7C656xx for

each port. Before the hubs are configured, the ports are driven

SE0 (Single Ended Zero, where both D+ and D– are driven low)

and are set to the unpowered state. When the hub is configured,

the ports are not driven and the host may power the ports by

sending a SetPortPower command for each port. After a port is

powered, any connect or disconnect event is detected by the

hub. Any change in the port state is reported by the hubs back

to the host through the Status Change Endpoint (endpoint 1). On

receipt of SetPortReset request for a port with a device

connected, the hub does as follows:

Overcurrent Detection

Overcurrent detection includes 8 ms of timed filtering by default.

This parameter is configured from the external EEPROM in a

range of 0 ms to 15 ms for both enabled ports and disabled ports

individually. Detection of overcurrent on downstream ports is

managed by control pins connected to an external power switch

device.

The OVR[n]# pins of the CY7C656xx series are connected to the

respective external power switch's port overcurrent indication

(output) signals. After detecting an overcurrent condition, hub

reports overcurrent condition to the host and disables the PWR#

output to the external power device. The polarity of the OVR pins

can be configured through the EEPROM; see Configuration

Options on page 12.

■ Performs a USB Reset on the corresponding port

■ Puts the port in an enabled state

■ Enables the green port indicator for that port (if not previously

overridden by the host)

■ Enables babble detection after the port is enabled.

Document Number: 38-08037 Rev. *M

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CY7C656xx

to inform the user of the current status of the port or the device

attached to the port and to guide the user through problem

resolution. Colors and blinking provide information to the user.

The significance of the color of the LED depends on the opera-

tional mode of CY7C656xx. The CY7C656xx port indicators has

two modes of operation: automatic and manual.

Port Indicators

The USB 2.0 port indicators are also supported directly by

CY7C656xx. According to the specification, each downstream

port of the hub optionally supports a status indicator. The

presence of indicators for downstream facing ports is specified

by bit 7 of the wHubCharacteristics field of the hub class

descriptor. The default CY7C656xx descriptor specifies that port

indicators are supported (wHubCharacteristics, bit 7 is set). If

port indicators are not included in the hub, disable this bit through

EEPROM settings.

On power up the CY7C656xx defaults to automatic mode, where

the color of the Port Indicator (green, amber, off) indicates the

functional status of the CY7C656xx port. In automatic mode, the

CY7C656xx turns on the green LED whenever the port is

enabled and the amber LED when an overcurrent condition is

detected. The color of the port indicator is set by the port state

machine. Blinking of the LEDs is not supported in automatic

mode. Table 1 identifies the mapping of color to port state in

automatic mode.

Each port indicator pin is strategically located directly on the

opposite edge of the port with which it is associated. A port

indicator provides two colors: green and amber. This is usually

implemented as two separate LEDs, one amber and the other

green. A combination of hardware and software control is used

Table 1. Automatic Port State to Port Indicator Color Mapping

Downstream Facing Hub Port State

Disconnected, Disabled,

Not Configured, Resetting, Testing

Enabled, Transmit, or

TransmitR

Suspended, Resuming,

SendEOR, Restart_E/S

Powered Off

Off or Amber, if due to an

overcurrent condition

Off

Green

Off

The LED control lines can also be modulated with a square wave

for power conservation. The polarity of these pins is program-

mable, see on page 13.

Table 2 displays the color definition of the indicators when

CY7C656xx is in manual mode.^[1]

Table 2. Port Indicator Color Definitions in Manual Mode

In manual mode, the indicators are under the control of the host,

which can turn on the LEDs, or leave them off. This is done by a

USB Hub class request. Blinking of the LEDs is supported in

manual mode. The port indicators enable the user to intervene

in any error detection. For example, when babble is detected

while plugging in a defective device, or when an overcurrent

condition occurs, the port indicators corresponding to the

downstream port blink green or only light the amber LED, respec-

tively.

Color Definition

Port State

Not operational

Off

Amber

Error condition

Fully operational

Software attention

Hardware attention

Reserved

Green

Blinking Off/Green

Blinking Off/Amber

Blinking Green/Amber

Note

1. Information presented in Table 1 and Table 2 is from USB 2.0 specification Tables 11-6 and 11-7, respectively.

Document Number: 38-08037 Rev. *M

Page 5 of 25

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CY7C656xx

Pin Configuration

Figure 1. 56-Pin Quad Flat Pack No Leads (8 mm x 8 mm)^[2]

56

55

54

51

50

49

48

47

46

45

44

43

53

52

DD–[4]/NC

1

AMBER#[3]/NC

42

DD+[4]/NC

2

41 GREEN#[3]/NC

40 GND

VCC

3

GND

4

5

VCC

39

38

DD–[3]/NC

AMBER#[2]

DD+[3]/NC

VCC

6

GREEN#[2]

AMBER#[1]

37

36

7

8

GND

GREEN#[1]

GND

35

34

DD–[2]

9

DD+[2] 10

33 VCC

VCC 11

GND 12

32 OVR#[2]

31 PWR#[2]

DD–[1]

13

30 OVR#[1]

29 PWR#[1]

DD+[1] 14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Note

2. NC and Rsvd are for CY7C65620 only.

Document Number: 38-08037 Rev. *M

Page 6 of 25

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CY7C656xx

Pin Description

Table 3. Pin Assignments^[3]

CY7C65630

Name

CY7C65620

Type Default

Description

Name

VCC

GND

XIN

3

VCC

GND

XIN

Power N/A V_CC. This signal provides power to the chip.

7

11

15

19

23

27

33

39

55

4

Power N/A

V_CC. This signal provides power to the chip.

Power N/A GND. Connect to Ground with as short a path as possible.

8

12

16

20

24

28

34

40

47

50

56

21

22

46

Input

N/A 24 MHz Crystal IN or External Clock Input.

XOUT

RESET#

XOUT

RESET#

Output N/A 24 MHz Crystal OUT. (NC if external clock is used)

Input

N/A Active LOW Reset. This pin resets the entire chip. It is normally tied to

V_CCthrough a 100K resistor, and to GND through a 0.1 µF capacitor. No

other special power up procedure is required.

45

26

SELFPWR

N/A Self Power. Indicator for bus or self powered. 0 is bus powered, 1 is self

powered.

VBUSPOWER VBUSPOWER Input

N/A VBUS. Connect to the VBUS pin of the upstream connector. This signal

indicates to the hub that it is in a connected state, and may enable the

D+ pull up resistor to indicate a connection. (The hub does so after the

external EEPROM is read).

SPI Interface

25

48

49

SPI_CS

SPI_SCK

SPI_SD

Output

I/O/Z

O

Z

SPI Chip Select. Connect to CS pin of the EEPROM.

SPI Clock. Connect to EEPROM SCK pin.

SPI_SCK

SPI_SD

SPI Dataline Connect to GND with 15 KΩ resistor and to the Data I/O

pin of the EEPROM.

Upstream Port

17

18

D–

D+

D–

D+

I/O/Z

Z

Upstream D– Signal.

Upstream D+ Signal.

Note

3. Unused port DD+/DD– lines can be left floating. Leave the port power, amber, and green LED pins unconnected, and deassert the overcurrent pin. Do not leave the

overcurrent pin floating; it is an input.

Document Number: 38-08037 Rev. *M

Page 7 of 25

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CY7C656xx

Table 3. Pin Assignments^[3](continued)

CY7C65630

Name

CY7C65620

Name

Type Default

Description

Downstream Port 1

13

14

36

DD–[1]

DD+[1]

DD–[1]

DD+[1]

I/O/Z

Z

1

Downstream D– Signal.

Downstream D+ Signal.

AMBER#[1]

AMBER#[1] Output

LED. Driver output for Amber LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

35

30

29

GREEN#[1]

OVR#[1]

GREEN#[1] Output

1

Z

LED. Driver output for Green LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

OVR#[1]

PWR#[1]

Input

O/Z

Overcurrent Condition Detection Input. Default is Active LOW.

Polarity is controlled through EEPROM.

PWR#[1]

Power Switch Driver Output. Default is Active LOW. Polarity is

controlled through EEPROM.

Downstream Port 2

9

DD–[2]

DD+[2]

DD–[2]

DD+[2]

I/O/Z

Z

1

Downstream D– Signal.

Downstream D+ Signal.

10

38

AMBER#[2]

AMBER#[2] Output

LED. Driver output for Amber LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

37

32

31

GREEN#[2]

OVR#[2]

GREEN#[2] Output

1

Z

LED. Driver output for Green LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

OVR#[2]

PWR#[2]

Input

O/Z

Overcurrent Condition Detection Input. Default is Active LOW.

Polarity is controlled through EEPROM.

PWR#[2]

Power Switch Driver Output. Default is Active LOW. Polarity is

controlled through EEPROM.

Downstream Port 3

5

6

DD–[3]

DD+[3]

NC

I/O/Z

Z

1

Downstream D– Signal.

Downstream D+ Signal.

42

AMBER#[3]

Output

LED. Driver output for Amber LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

41

53

GREEN#[3]

OVR#[3]

NC

Output

Input

1

LED. Driver output for Green LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

Reserved

Overcurrent Condition Detection Input. Default is Active LOW.

Polarity is controlled through EEPROM.

Reserved. Pull to deasserted state with external resistor (CY7C65620

only)

54

PWR#[3]

NC

O/Z

Z

Power Switch Driver Output. Default is Active LOW. Polarity is

controlled through EEPROM.

Downstream Port 4

1

2

DD–[4]

DD+[4]

NC

I/O/Z

Z

1

Downstream D– Signal.

Downstream D+ Signal.

44

AMBER#[4]

Output

LED. Driver output for Amber LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

43

51

GREEN#[4]

OVR#[4]

NC

Output

Input

1

LED. Driver output for Green LED. Port Indicator Support. Default is

Active LOW. Polarity is controlled through EEPROM.

Reserved

Overcurrent Condition Detection Input. Default is Active LOW.

Polarity is controlled through EEPROM.

Reserved. Pull to deasserted state with external resistor (CY7C65620

only)

52

PWR#[4]

NC

O/Z

Z

Power Switch Driver Output. Default is Active LOW. Polarity is

controlled through EEPROM.

Document Number: 38-08037 Rev. *M

Page 8 of 25

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CY7C656xx

Default Descriptors

This section presents the different descriptors that are available. The following tables list the functionality of each descriptor.

Device Descriptor

The standard device descriptor for CY7C656xx is based on the information found in the SPI EEPROM. The information in the

EEPROM overrides the default descriptor values. If no EEPROM is used, the CY7C656xx enumerates with the default descriptor

values as shown in the following table. If a blank EEPROM is connected, the hub enumerates as vendor defined class instead of a

hub class. This is for the purpose of programming the EEPROM with the Cypress driver.

Byte

0

Full Speed

0x12

High Speed

0x12

Field Name

bLength

Description

18 bytes

1

0x01

bDescriptorType

bcdUSB

DEVICE_DESCRIPTOR

USB specification 2.0 (1.1 if forced FS)

HUB

2,3

4

0x0110

0x09

0x0200

0x09

bDeviceClass

bDeviceSubClass

bDeviceProtocol

bMaxPacketSize0

wIdVendor

5

0x00

None

6

0x00

0x01

None

7

0x40

64 bytes

8,9

10,11

12, 13

14

15

16

17

0x04B4

0x6560

0x0915

0x00

0x04B4

0x6560

0x0915

0x00

VID (overridden by what is defined in EEPROM)

PID (overridden by what is defined in EEPROM)

DID (overridden by what is defined in EEPROM)

Overridden by EEPROM

One configuration supported

wIdProduct

wbcdDevice

iManufacturer

iProduct

0x00

iSerialNumber

bNumConfigurations

0x01

Configuration Descriptor

Byte

Full Speed

High Speed

Field Name

Description

9 bytes

0

1

2

4

5

6

7

0x09

bLength

0x02^[4]/0x07^[5]0x02^[4]/0x07^[5]bDescriptorType

CONFIG_DESCRIPTOR

Length of all other descriptors

1

0x0019

0x01

0x0019

0x01

wTotalLength

bNumInterfaces

bConfigurationValue

iConfiguration

bmAttributes

0x01

The configuration to use

0x00

0xA0

0xE0

0xA0

0xE0

Value depends on pin 45 - SELFPWR signal

SELFPWR = 0 yields 0xA0 and =1 yields 0xE0

8

0x28

0x57^[4]

bMaxPower

Notes

4. Configured speed descriptor.

5. Other speed descriptor.

Document Number: 38-08037 Rev. *M

Page 9 of 25

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CY7C656xx

Interface Descriptor

Byte

Full Speed

0x09

High Speed

0x09

Field Name

bLength

Description

0

1

2

3

4

5

6

7

8

9 bytes

INTERFACE_DESCRIPTOR

0x04

bDescriptorType

bInterfaceNumber

bAlternateSetting

bNumEndpoints

bInterfaceClass

bInterfaceSubClass

bInterfaceProtocol

iInterface

0x00

0x01

0x09

0x00

Endpoint Descriptor

Byte

Full Speed

0x07

High Speed

0x07

Field Name

bLength

Description

0

1

7 bytes

0x05

bDescriptorType

bEndpointAddress

bmAttributes

ENDPOINT_DESCRIPTOR

IN Endpoint #1

Interrupt

2

0x81

3

0x03

4,5

6

0x0001

0xFF

0x0001

0x0C

wMaxPacketSize

bInterval

Maximum packet size

Polling rate

Device Qualifier Descriptor

Byte

0

Full Speed

0x0A

High Speed

0x0A

Field Name

bLength

Description

10 bytes

1

0x06

bDescriptorType

bcdUSB

DEVICE_QUALIFIER

2,3

4

0x0200

0x09

0x0200

0x09

bDeviceClass

bDeviceSubClass

bDeviceProtocol

bMaxPacketSize0

bNumConfigurations

bReserved

5

0x00

6

0x01

0x00

7

0x40

8

0x01

9

0x00

Document Number: 38-08037 Rev. *M

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CY7C656xx

Hub Descriptor

Byte All Speed

Field Name

bLength

Description

0

1

2

0x09

9 bytes

0x29

0x04^[6]

0x02

bDescriptorType

bNbrPorts

HUB descriptor

Number of ports supported, CY7C65630

Number of ports supported, CY7C65620

3,4

0x0089^[6]wHubCharacteristics b1, b0: Logical Power Switching Mode

00: Ganged power switching (all ports’ power at once).

01: Individual port power switching (Default in CY7C656xx).

b2: Identifies a Compound Device

0: Hub is not part of a compound device (Default in CY7C656xx).

1: Hub is part of a compound device.

b4, b3: Overcurrent Protection Mode

00: Global Overcurrent Protection. The hub reports overcurrent as a

summation of all ports’ current draw, without a breakdown of individual port

overcurrent status.

01: Individual Port Overcurrent Protection. The hub reports overcurrent on a

per-port basis. Each port has an overcurrent status (Default in CY7C656xx).

1X: No Overcurrent Protection. This option is allowed only for bus powered

hubs that do not implement overcurrent protection.

b6, b5: TT Think Time

00: TT requires at most eight FS bit times of inter transaction gap on a full-/low

speed downstream bus (Default in CY7C656xx).

b7: Port Indicators Supported,

0: Port Indicators are not supported on its downstream facing ports and the

SetPortIndicator request has no effect.

1: Port Indicators are supported on its downstream facing ports and the

SetPortIndicator request controls the indicators. See Functional Overview and

Supported USB Requests. (Default in CY7C656xx).

b15,. b8: Reserved

5

6

0x32^[6]

bPwrOn2PwrGood

bHubContrCurrent

Time from when the port is powered to when the power is good on that port.

0x28^[6]

Maximum current requirement for the Hub Controller at full speed.

Maximum current requirement for the Hub Controller at high speed.

0xAE^[6]

7

8

0x00^[6]

0xFF^[6]

bDeviceRemovable

bPortPwrCtrlMask

Indicates if the logical port has a removable device attached (0 = removable,

1 = non removable).

Required for compatibility with software written for 1.0 compliant devices.

Note

6. This value is configured through the external EEPROM.

Document Number: 38-08037 Rev. *M

Page 11 of 25

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CY7C656xx

Byte 0: 0xD2

Configuration Options

Needs to be programmed with 0xD2

Byte 1: VID (LSB)

Systems using CY7C656xx have the option of using a fuse

ROM, which is preset at the factory to configure the hub.

Otherwise, it must have an external EEPROM for the device to

have a unique VID, PID, and DID. The CY7C656xx can commu-

nicate with SPI EEPROM that are either double byte addressed

or single byte with the ninth bit within the instruction byte, such

as the 24LC040 parts use. The 25LC080 EEPROM uses the

double byte address format. Therefore, the CY7C656xx can

communicate with these parts. The '010s and '020s use the

same command format that is used to interface with the ‘040 and

hence these can also be used to interface with the CY7C656xx.

Least Significant Byte of Vendor ID

Byte 2: VID (MSB)

Most Significant Byte of Vendor ID

Byte 3: PID (LSB)

Least Significant Byte of Product ID

Byte 4: PID (MSB)]

Most Significant Byte of Product ID

Byte 5: Reserved

If the attached EEPROM is blank (0xFF) the hub enumerates as

a vendor class device. In this configuration, the hub connects to

the Cypress driver to allow programming of the EEPROM. When

the EEPROM is programmed, a power cycle configures the chip

as a hub class device.

Reserved

Byte 6: DID (MSB)]

Most Significant Byte of Device ID

0xD0 Load

Byte 7: EnabledOvercurrentTimer[3:0],

DisabledOvercurrentTimer[3:0]

With this EEPROM format, only a unique VID, PID, and DID must

be present in the external SPI EEPROM. The contents of the

EEPROM must contain this information in the following format:

Count time in ms for filtering overcurrent detection. Bits 7–4

are for an enabled port, and bits 3–0 are for a disabled port.

Both range from 0 ms to 15 ms. See section Port Indicators

on page 5. Default: 8 ms = 0x88.

Byte

Value

0

1

2

3

4

5

6

0xD0

Byte 8: ActivePorts[3:0], RemovablePorts[3:0]

VID (LSB)

VID (MSB)

PID (LSB)

PID (MSB)

reserved

DID (MSB)

Bits 7–4 are the ActivePorts[3:0] bits that indicates if the cor-

responding port is usable. For example, a two-port hub that

uses ports 1 and 4 would set this field to 0x09. The total num-

ber of ports reported in the Hub Descriptor: bNbrPorts field is

calculated from this. Bits 3–0 are the RemovablePorts[3:0]

bits that indicates whether the corresponding logical port is

removable (set to high). Logical port numbers are from 1 to n

where n is the total number of active ports. If port 2 is disabled

then physical ports 1, 3, and 4 map to logical ports 1, 2, and

3. These bit values are reported appropriately in the

HubDescriptor:DeviceRemovable field. Default: 0xFF.

0xD2 Load

Byte

Value (MSB->LSB)

0

1

2

3

4

5

6

7

0xD2

VID (LSB)

VID (MSB)

PID (LSB)

PID (MSB)

reserved

Byte 9: MaximumPower

This value is reported in the ConfigurationDescriptor:bMax-

Power field and is the current in 2 mA increments that is re-

quired from the upstream hub. Default: 0x28 = 80 mA for full

speed and 0x57 = 174 mA for high speed.

Byte 10: HubControllerPower

DID (MSB)

This value is reported in the HubDescriptor:bHubContrCur-

rent field and is the current in milliamperes required by the

hub controller. Default: 0x50 = 80 mA for full speed and 0xAE

= 174 mA for high speed.

EnabledOverCurrentTimer[3:0],

DisableOvercurrentTimer[3:0]

8

ActivePorts[3:0], RemovablePorts[3:0]

MaxPower

9

Byte 11: PowerOnTimer

10

11

12

HubControllerPower

PowerOnTimer

This

value

is

reported

in

the

HubDescriptor:

bPwrOn2PwrGood field and is the time in 2 ms intervals from

the SetPortPower command until the power on the corre-

sponding downstream port is good. Default: 0x32 = 100 ms.

IllegalHubDescriptor, CompoundDevice,

FullspeedOnly, NoPortIndicators, Reserved,

GangPowered, Reserved, Reserved

Document Number: 38-08037 Rev. *M

Page 12 of 25

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CY7C656xx

Byte 12: IllegalHubDescriptor, CompoundDevice, Full

Speed Only, NoPortIndicators, Reserved, GangPowered,

SingleTTOnly

0xD4 Load (continued)

Factory

Fusable

Byte

Value (MSB->LSB)

IllegalHubDescriptor, Compound-

Bit 7: IllegalHubDescriptor. For GetHubDescriptor request,

some USB hosts use a DescriptorTypeof 0x00 instead of

HUB_DESCRIPTOR, 0x29. According to the USB 2.0 stan-

dard, a hub must treat this as a Request Error, and STALL the

transaction accordingly (USB 2.0, 11.24.2.5). For systems

that do not accept this, the IllegalHubDescriptor configuration

bit can be set to allow CY7C656xx to accept a DescriptorType

of 0x00 for this command. Default is 1.

17

X

Device, FullspeedOnly, NoPortIndi-

cators, Reserved, GangPowered,

SingleTTOnly, Reserved

18

AmberPolarity, GreenPolarity,

ModulateIndicators, PowerControlPo-

larity, OverCurrentPolarity,

OverCurrentMode1,

X

Bit 6: CompoundDevice. Indicates whether the hub is part of

a compound device. This is reported in the HubDescriptor,

wHub-Characteristics: b2. Default set to ’0’.

OverCurrentMode2

19

20

21

22

23

24

Write Protect

NumLangs

Bit 5: Fullspeed. Only configures the hub to be a full speed

only device. Default is set to ’0’.

SupportedStrings

ActivePorts[3:0]

RemovablePorts[3:0]

LangID

Bit 4: NoPortIndicators. Turns off the port indicators and does

not report them as present in the HubDescriptor, wHubChar-

acteristics b7 field. Default is set to ’0’.

X

a

iManufacturer

Bit 3: Reserved. Set this bit to ’0’.

=24+2N

Bit 2: GangPowered. Indicates whether the port power

switching is ganged (set to 1) or per-port (set to ’0’). This is

reported in the HubDescriptor, wHubCharacteristics field, b4,

b3, b1, and b0. Default is set to ’0’.

b

iProduct

=a+2N

c

iSerialNumber

iConfiguration(FS)

iConfiguration(HS)

iInterface(0)

=b+2N

Bit 1: Reserved. Default is set to ’0’.

Bit 0: Reserved. Default is set to ’0’.

d

=c+2N

e

=d+2N

0xD4 Load

f

=e+2N

Factory

Fusable

Byte

Value (MSB->LSB)

g

reserved

=f+2N

0

1

2

3

4

5

6

7

0xD4

h=g+2N Strings

N:NumLangs

VID (LSB)

X

VID (MSB)

PID (LSB)

PID (MSB)

reserved

Byte 0: 0xD4

Needs to be programmed with 0xD4

Byte 1: VID (LSB)

DID (MSB)

X

Least Significant Byte of Vendor ID

Byte 2: VID (MSB)

EnabledOverCurrentTimer[3:0],

DisableOvercurrentTimer[3:0]

8

MaxPower (Full Speed)

MaxPower (High Speed)

Reserved

X

Most Significant Byte of Vendor ID

Byte 3: PID (LSB)

9

10

11

12

Least Significant Byte of Product ID

Byte 4: PID (MSB)

Reserved

HubControllerPower Full Speed Bus

Powered

X

Most Significant Byte of Product ID

Byte 5: Reserved

13

14

15

16

HubControllerPower High Speed Bus

Powered

Reserved

HubControllerPower Full Speed Self

Powered

Byte 6: DID (MSB)

Most Significant Byte of Device ID

HubControllerPower High Speed Self

Powered

PowerOnTimer

Document Number: 38-08037 Rev. *M

Page 13 of 25

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CY7C656xx

Byte 7: EnabledOvercurrentTimer[3:0], DisabledOvercur-

rentTimer[3:0]

that do not accept this, the IllegalHubDescriptor configuration

bit may be set to allow CY7C656xx to accept a Descriptor-

Type of 0x00 for this command. Default set to 1.

Count time in ms for filtering overcurrent detection. Bits 7–4

are for an enabled port, and bits 3–0 are for a disabled port.

Both range from 0 ms to 15 ms. See section Port Indicators

on page 5. Default: 8 ms = 0x88.

Bit 6: CompoundDevice. Indicates whether the hub is part of

a compound device. This is reported in the HubDescriptor,

wHub-Characteristics: b2. Default is set to ’0’.

Byte 8: MaximumPower (Full speed)

Bit 5: Fullspeed. Only configures the hub to be a full speed

only device. Default is set to ’0’.

This value is reported in the ConfigurationDescriptor:bMax-

Power field and is the current in 2 mA increments that is re-

quired from the upstream hub when connected at full speed.

Default: 0x28 = 80 mA for full speed.

Bit 4: NoPortIndicators. Turns off the port indicators and does

not report them as present in the HubDescriptor, wHubChar-

acteristics b7 field. Default is set to ’0’.

Byte 9: MaximumPower (High speed)

Bit 3: Reserved. Set this bit to ‘0’.

This value is reported in the ConfigurationDescriptor:bMax-

Power field and is the current in 2 mA increments that is re-

quired from the upstream hub when connected at high speed.

Default: 0x57 = 174 mA for high speed.

Bit 2: GangPowered. Indicates whether the port power

switching is ganged (set to 1) or per-port (set to ’0’). This is

reported in the HubDescriptor, wHubCharacteristics field, b4,

b3, b1, and b0. Default is set to ’0’.

Byte 10: Reserved

Bit 1: Reserved. Default is set to ’0’.

Bit 0: Reserved. Default is set to ’0’.

Write zeros to this location.

Byte 11: Reserved

Byte 18: AmberPolarity, GreenPolarity, SelfPowerable,

ModulateIndicators, PowerControlPolarity, OverCurrentPo-

larity, OverCurrentMode1, OverCurrentMode2

Write zeros to this location.

Byte 12: HubControllerPower (Full speed, bus powered)

Bit 7: AmberPolarity. Indicates the polarity of the amber indi-

cator control. (1 = high, 0 = low)

This value is reported in the HubDescriptor:bHubContrCur-

rent field and is the current in milliamperes required by the

hub controller when connected on the upstream hub as a full

speed. Default: 0x50 = 80 mA for full speed.

Bit 6: GreenPolarity. Indicates the polarity of the green indica-

tor control. (1 = high, 0 = low)

Byte 13: HubControllerPower (High speed, bus powered)

Bit 5: SelfPowerable. Indicates whether the hub is capable of

operating in self powered mode. If ‘0’, the hub is capable of

bus powered operation only.

This value is reported in the HubDescriptor:bHubContrCur-

rent field and is the current in milliamperes required by the

hub controller when connected on the upstream hub as a high

speed. Default: 0xAE = 174 mA for high speed.

Bit 4: ModulateIndicators. If this bit is set, the indicator outputs

are modulated by a square wave of 120 Hz, for power sav-

ings. If ‘0’, the outputs are static.

Byte 14: HubControllerPower (Full speed, self powered)

Bit 3: PowerControlPolarity. If set, the power control outputs

are active HIGH. If not set, the power control outputs are ac-

tive LOW.

This value is reported in the HubDescriptor:bHubContrCur-

rent field and is the current in milliamperes required by the

hub controller when connected on the upstream hub as a full

speed. Default: 0x50 = 80 mA for full speed.

Bit 2: OverCurrentPolarity. If set, the overcurrent inputs are

active HIGH. If not set, the overcurrent inputs are active LOW.

Byte 15: HubControllerPower (High speed, self powered)

This value is reported in the HubDescriptor:bHubContrCur-

rent field and is the current in milliamperes required by the

hub controller when connected on the upstream hub as a high

speed. Default: 0x64 = 100 mA for high speed.

Bit 1: OverCurrentMode1. Reported as bit 4 of the wHubChar-

acteristics field of the hub descriptor. If set to ‘1’, this bit dis-

ables overcurrent detection.

Bit 0: OverCurrentMode2. Reported as bit 3 of the wHubChar-

acteristics field of the hub descriptor. If Bit 1 of this byte is set

to ‘0’, overcurrent detection is enabled. If this bit (Bit 0) is set

to ‘1’, the hub reports overcurrent on a per-port basis. If set to

‘0’, the hub reports overcurrent as the summation of all ports’

current draw.

Byte 16: PowerOnTimer

This

value

is

reported

in

the

HubDescriptor:

bPwrOn2PwrGood field and is the time in 2 ms increments

from the SetPortPower command until the power on the cor-

responding downstream port is good. Default: 0x32 = 100 ms.

Byte 19: Write Protect

Byte 17: IllegalHubDescriptor, CompoundDevice, Full

Speed Only, NoPortIndicators, Reserved, GangPowered,

Reserved

Writing the value 0x42 to this field enables Write Protect and

any future writes to the EEPROM fail. Default is set to ‘0’.

Bit 7: IllegalHubDescriptor. For GetHubDescriptor request,

some USB hosts use a DescriptorTypeof 0x00 instead of

HUB_DESCRIPTOR, 0x29. According to the USB 2.0 stan-

dard, a hub must treat this as a Request Error, and STALL the

transaction accordingly (USB 2.0, 11.24.2.5). For systems

Byte 20: NumLangs

Number of supported string languages. CY7C656xx supports

a maximum of 31 languages; if this field is set to ’0’ or a num-

ber larger than 31, all string support is disabled.

Document Number: 38-08037 Rev. *M

Page 14 of 25

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CY7C656xx

Byte 21: SupportedStrings

Byte 24: LangID

This field contains a bitmap of strings supported by the hub.

A set bit indicates that the standard string is supported. A bit

not set indicates that the string is not supported. The hub

controller returns a non zero index for each string that is sup-

ported, and returns 0x00 for each string not supported, as

indicated by this field. The bits in this field correspond to the

following standard strings.

Array of LangID codes supported by the hub. Each LangID

consists of two bytes, stored LSB first. The array has Num-

Langs entries (2 * NumLangs bytes).

Byte a: iManufacturer

Array of addresses for the iManufacturer strings. Each ad-

dress is two bytes long, stored LSB first. The array has Num-

Langs entries (2 * NumLangs bytes). The starting EEPROM

address is based upon the number entered for NumLangs.

The address a = 24 + 2 * NumLangs.

Table 4. Byte 21 Supported Strings

Bit

Name

Description

7

6

5

Reserved

Interface (0)

Byte b: iProduct

Array of addresses for the iProduct strings. Each address is

two bytes long, stored LSB first. The array has NumLangs

entries (2 * NumLangs bytes).

The iInterface string index

reported in the first interface

descriptor (alternate setting 0)

The address b = a + 2 * NumLangs.

Byte c: iSerialNumber

4

3

iConfiguration (high speed) The iConfiguration

string index reported in the

Array of addresses for the iSerialNumber strings. Each ad-

dress is two bytes long, stored LSB first. The array has Num-

Langs entries (2 * NumLangs bytes).

configuration descriptor, when

operating at high speed

The address c = b + 2 * NumLangs.

iConfiguration (full speed) The iConfiguration

string index reported in the

Byte d: iConfiguration(Full Speed)

configuration descriptor, when

Array of addresses for the iConfiguration (full speed) strings.

Each address is two bytes long, stored LSB first. The array

has NumLangs entries (2 * NumLangs bytes).

The address d = c + 2*NumLangs.

operating at full speed

2

1

0

iSerial Number The iSerialNumber string index

reported in the device descriptor

iProduct

The iProduct string index

reported in the device descriptor

Byte e: iConfiguration(High Speed)

Array of addresses for the iConfiguration (high speed) strings.

Each address is two bytes long, stored LSB first. The array

has NumLangs entries (2 * NumLangs bytes).

iManufacturer

The iManufacturer string index

reported in the device descriptor

The address e = d + 2 * NumLangs.

Byte 22: ActivePorts[3:0]

Byte f: iInterface(0)

Bits 3–0 are the ActivePorts[3:0] bits that indicates if the cor-

responding port is usable. For example, a two-port hub that

uses ports 1 and 4 sets this field to 0x09. The total number of

ports reported in the Hub Descriptor: bNbrPorts field is calcu-

lated from this. Default 0x0F.

Array of addresses for the iInterface(0) strings. Each address

is two bytes long, stored LSB first. The array has NumLangs

entries (2 * NumLangs bytes).

The address f = e + 2 * NumLangs.

Byte g: iInterface(1)

Reserved

Byte 23: RemovablePorts[3:0]

Bits 3–0 are the RemovablePorts[3:0] bits that indicates

whether the corresponding logical port is removable (set to

high). Logical port numbers are from 1 to n where n is the total

number of active ports. If port 2 is disabled then physical ports

1, 3, and 4 map to logical ports 1, 2, and 3. These bit values

are recorded in the HubDescriptor:DeviceRemovable field.

Default 0x0F.

Byte h: Strings

Strings addressed by the string pointers. Strings must comply

with the USB specification. The first byte must be the length

of the string in bytes, the second must be 0x03, and the string

must be in Unicode.

Document Number: 38-08037 Rev. *M

Page 15 of 25

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CY7C656xx

Supported USB Requests

Device Class Commands

Table 5. Device Class Requests

Request

GetDeviceStatus

GetInterfaceStatus

bmRequestType bRequest

wValue

0x0000

wIndex

0x0000

wLength

0x0002

Data

10000000B

10000001B

0x00

2 Byte Device Status

0x0000

0x0001

0x0002

0x0006

0x0007

0x0000

Zero or

0x0002

2 Byte Interface

Status

GetEndpointStatus

GetDeviceDescriptor

GetConfigDescriptor

10000010B

10000000B

0x00

0x06

0x0002

2 Byte Endpoint

Status

Descriptor Descriptor

Language ID Length

Zero or

Language ID Length

Descriptor Descriptor

GetDeviceQualifierDe-

scriptor

Zero or

Language ID Length

Descriptor Descriptor

GetOtherSpeedConfigura-

tionDescriptor

GetConfiguration^[7]

SetCongfiguration^[7]

Zero or

Language ID Length

Descriptor Descriptor

10000000B

00000000B

0x08

0x09

0x0000

0x0001

0x0000

Configuration Value

None

Configuration

Value

GetInterface

SetInterface

10000001B

00000001B

0xA

0x0000

0x0001

0x0000

Interface Number

None

0x0B

Alternate

Setting

Interface

Number

SetAddress

00000000B

0x05

0x03

0x01

Device Address 0x0000

0x0000

None

SetDeviceRemoteWakeup

SetDeviceTest_J

0x01

0x02

0x00

0x01

0x0000

0x0100

0x0200

0x0300

0x0400

0x0000

SetDeviceTest_K

SetDeviceTest_SE0_NAK

SetDeviceTest_Packet

SetEndpointHalt

ClearDeviceRe-

moteWakeup

ClearEndpointHalt

00000000B

0x01

0x00

0x0000

None

Note

7. Only one configuration is supported in CY7C656xx.

Document Number: 38-08037 Rev. *M

Page 16 of 25

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CY7C656xx

Hub Class Commands

Table 6. Hub Class Requests

Request

bmRequestType bRequest

wValue

0x0000

wIndex

0x0000

wLength

Data

GetHubStatus

10100000B

0x00

0x0004

HubStatus(SeeTable11-19

of USB 2.0 Specifications)

Change Status (See Table

11-20 of USB 2.0 Specifica-

tions)

GetPortStatus

10100011B

0x00

0x0000

Byte 0: 0x00 0x0004

Byte 1: Port

PortStatus(SeeTable11-21

of USB 2.0 Specifications)

Change Status (See Table

11-20 of USB 2.0 Specifica-

tions)

ClearHubFeature

ClearPortFeature

00100000B

00100011B

0x01

Feature

0x0000

None

Selectors^[8]0 or 1

Feature

Byte 0: 0x00 0x0000

Byte 1: Port

None

Selectors^[8]

1, 2, 8, 16, 17, 18, 19,

or 20

ClearPortFeature

SetHubFeature

SetPortFeature

00100011B

00100000B

00100011B

0x01

0x03

Feature Selectors^[8]Byte 0: -

0x0000

None

22

Byte 1: Port

(PORT_INDICATOR)

Feature

Selector^[8]

0 or 1

0x0000

Port

Feature

None

Selectors^[8]

2, 4 or 8

Feature

Byte 0:

Selector^[8]21

(PORT_TEST)

Selectors^[8]

1,2, 3, 4 or 5

Byte 1: Port

SetPortFeature

00100011B

10100000B

0x03

0x06

Feature

Byte 0:

0x0000

None

Selector^[8]22

Selectors^[10]

(PORT_INDICATOR) 0, 1, 2, or 3

Byte 1: Port

GetHubDescriptor

Descriptor Type and

Descriptor Index

Hub

Descriptor

Length

ClearTTBuffer

ResetTT

00100011B

00100000B

0x08

0x09

Dev_Addr, EP_Num TT_Port

0x0000

None

0x0000

TT_Flags

0x0000

Byte 0: 0x00 0x0000

Byte 1: Port

GetTTState

StopTT

10100011B

00100011B

0X0A

0x0B

Byte 0: 0x00 TT State TT State

Byte 1: Port Length

Byte 0: 0x00 0x0000

Byte 1: Port

None

Document Number: 38-08037 Rev. *M

Page 17 of 25

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CY7C656xx

Table 6. Hub Class Requests (continued)

Request

bmRequestType bRequest

wValue

wIndex

0x00

wLength

Data

Vendor Commands

Read EEPROM

11000000B

0x02

0x00

Length

Data

This request results in reading length bytes of data from the external memory device and returned to the host. Data is read

beginning with address 0. This request fails if there is no external memory device present. This request is only valid if the hub is

in the Configured state; the request fails otherwise.

Write EEPROM

01000000B

0x01

0x00

Length

Data

This request results in writing length bytes of data to the external memory device. Data is written beginning with address 0. This

request fails if there is no external memory device present. This request is only valid if the hub is in the Configured state or if the

external memory device write protect byte is set; the request fails otherwise.

Table 8. Test Mode Selector for Feature Selector

PORT_TEST (0x21)^[9]

Table 7. Hub Class Feature Selector

Feature Selector

C_HUB_LOCAL_POWER

C_HUB_OVER_CURRENT

PORT_CONNECTION

PORT_ENABLE

Recipient

Value

0

PORT_TEST Mode Description

Test_J

Selector Value

Hub

Port

1

2

3

4

5

1

Test_K

0

Test_SE0_NAK

Test_Packet

1

PORT_SUSPEND

2

Test_Force_Enable

PORT_RESET

4

PORT_POWER

8

PORT_LOW_SPEED

C_PORT_CONNECTION

C_PORT_ENABLE

C_PORT_SUSPEND

C_PORT_OVER_CURRENT

C_PORT_RESET

9

16

17

18

19

20

21

22

PORT_TEST

PORT_INDICATOR

Table 9. Port Indicator Selector for Feature Selector PORT_INDICATOR (0x22)

Port Indicator Color

Selector Value

Port Indicator Mode

Automatic Mode

Manual Mode

Color set automatically as shown in Table 1 on page 5

0

1

2

3

Amber

Green

Off

Manual Mode

Notes

8. Selector values for different features are presented in Table 7 on page 18.

9. Selector values for different features are presented in Table 8 on page 18.

10. Selector values for different features are presented in Table 9 on page 18.

Document Number: 38-08037 Rev. *M

Page 18 of 25

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CY7C656xx

Upstream USB Connection

The following is a schematic of the USB upstream connector.

Figure 2. USB Upstream Port Connection

BUSPOWER

VCC

D–

D+

2.2 μF

10V

D+

100 kΩ

GND

SHELL

Downstream USB Connection

The following is a schematic of the USB downstream connector.

Figure 3. USB Downstream Port Connection

PWRx

VCC

D–

150 µF

10V

0.01 µF

DD–[X]

DD+[X]

D+

GND

SHELL

LED Connection

The following is a schematic of the LED circuitry.

Figure 4. USB Downstream Port Connection

3.3V

680Ω

GREEN#[x]

AMBER#[x]

680Ω

Document Number: 38-08037 Rev. *M

Page 19 of 25

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CY7C656xx

System Block Diagram

Figure 5. Sample Schematic for 4-Port Self Powered Configuration

5V

VBUSPOWER

VBUS

VCC

D–

DsPWR1

VCC

D–

PWR1

OVR1

2.2 μF

DD–[1]

DD+[1]

15 kΩ

D–

D+

DsPWR4

DsPWR3

DsPWR2

DsPWR1

150 μF

10V

Power

Management

D+

150 kΩ

0.01 μF

D+

PWR2

OVR2

PWR3

GND

SHELL

GND

OVR3

PWR4

OVR4

SHELL

3.3V

680Ω

GREEN#[1]

AMBER#[1]

680Ω

SPI_SD

DO

DsPWR2

DI

SPI_SCK

SPI_CS

VCC

CLK

SPI_SD

DD–[2]

DD+[2]

0.01 μF

D–

D+

150 μF

10V

CS

SPI

GND

EEPROM

SHELL

24 MHz

3.3V

680Ω

GREEN#[2]

AMBER#[2]

3.3V

12 pF

680Ω

10K

SELFPWR

DsPWR3

VCC

D–

GREEN[1]

AMBER[1]

GREEN[1]

AMBER[1]

DD-[3]

DD+[3]

0.01 μF

VBUSPOWER

3.3V

VBUSPOWER

150 μF

10V

D+

GREEN[2]

AMBER[2]

GREEN[2]

AMBER[2]

GND

SHELL

100K

GREEN[3]

AMBER[3]

GREEN[3]

AMBER[3]

RESET

3.3 V

0.1μF

680Ω

GREEN#[3]

AMBER#[3]

GREEN[4]

AMBER[4]

GREEN[4]

AMBER[4]

D–

D+

D-

HX2LP

D+

PWR1

OVR1

PWR1

OVR1

DD–[1]

DD+[1]

DD-[1]

DD+[1]

PWR2

OVR2

PWR2

OVR2

DsPWR4

PWR3

OVR3

PWR3

OVR3

DD–[2]

DD+[2]

DD-[2]

DD+[2]

VCC

D–

DD-[4]

DD+[4]

0.01 μF

150 μF

10V

PWR4

OVR4

PWR4

OVR4

D+

DD–[3]

DD+[3]

DD-[3]

DD+[3]

GND

SHELL

SPI_CS

SPI_SCK

DD–[4]

DD+[4]

DD-[4]

DD+[4]

3.3 V

SPI_SD

680Ω

GREEN#[4]

AMBER#[4]

Document Number: 38-08037 Rev. *M

Page 20 of 25

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CY7C656xx

Electrical Characteristics

Absolute Maximum Ratings

Operating Conditions

Exceeding maximum ratings may impair the useful life of the

device. These user guidelines are not tested.

T_A(Ambient Temperature Under Bias)

Commercial

Automotive

........................... 0°C to +70°C

....................... –40°C to +85°C

Storage Temperature ................................ –65°C to +150 °C

Ambient Temperature with Power Applied:

Supply Voltage............................................+3.15V to +3.45V

Ground Voltage.................................................................. 0V

FOSC (Oscillator or Crystal Frequency)......24 MHz ± 0.05%

parallel resonant, 12 pF load capacitance, 0.5 mW

Commercial

Automotive

....................................... 0°C to +70°C

................................... –40°C to +85°C

Supply Voltage to Ground Potential ...............–0.5V to +4.0V

DC Voltage Applied to Outputs

in High Z State....................................... –0.5V to V_CC+ 0.5V

Power Dissipation (4 HS ports)..................................... 0.9 W

Static Discharge Voltage...........................................> 2000V

Maximum Output Sink Current per I/O ........................ 10 mA

DC Electrical Characteristics

Parameter

V_CC

_CCRampUp Ramp Rate on V_CC

Description

Conditions

Min

Typ

Max Unit

Supply Voltage

3.15

3.3

3.45

18

V

V/ms

V

V_IH

V_IL

Input High Voltage

Input Low Voltage

Input Leakage Current

Output Voltage High

Output Low Voltage

Output Current High

Output Current Low

Input Pin Capacitance

Suspend Current

2

5.25

0.8

–0.5

V

I_l

0 < V_IN< V_CC

I_OUT= 4 mA

I_OUT= –4 mA

±10

μA

V

V_OH

V_OL

I_OH

I_OL

2.4

0.4

4

V

mA

pF

μA

4

C_IN

I_SUSP

I_CC

10

80

Supply Current

4 Active Ports

Full Speed Host, Full Speed Devices

High Speed Host, High Speed Devices

High Speed Host, Full Speed Devices

Full Speed Host, Full Speed Devices

High Speed Host, High Speed Devices

High Speed Host, Full Speed Devices

Full Speed Host

86

231

154

77

110

260

180

100

190

160

90

mA

2 Active Ports

163

136

65

No Active Ports

High Speed Host

93

120

USB Transceiver

USB 2.0 certified in full, low, and high speed modes.

AC Electrical Characteristics

Both the upstream USB transceiver and all four downstream transceivers have passed the USB-IF USB 2.0 Electrical Certification

Testing.

Document Number: 38-08037 Rev. *M

Page 21 of 25

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CY7C656xx

Table 10. Serial Peripheral Interface

Parameter

Description

Clock Rise/Fall Time

Clock Frequency

Data Setup Time

Hold Time

Conditions

Min

Typ

Max

500

250

Unit

ns

KHz

ns

50

100

1.9

ns

Reset Period

ms

Ordering Information

Ordering Code

CY7C65630-56LFXC

CY7C65630-56LFXCT

CY7C65630-56LTXC

CY7C65630-56LTXCT

CY7C65630-56LFXA

CY7C65620-56LFXC

CY7C65620-56LFXCT

CY7C65620-56LTXC

CY7C65620-56LTXCT

CY4606

Package Type

56-Pin QFN 4-Port Punch Type QFN Bulk

56-Pin QFN 4-Port Punch Type QFN Tape & Reel

56-Pin QFN 4-Port Sawn Type QFN Bulk

56-Pin QFN 4-Port Sawn Type QFN Tape & Reel

56-Pin QFN 4-Port Automotive AEC grade

56-Pin QFN 2-Port Punch Type QFN Bulk

56-Pin QFN 2-Port Punch Type QFN Tape & Reel

56-Pin QFN 2-Port Sawn Type QFN Bulk

56-Pin QFN 2-Port Sawn Type QFN Tape & Reel

CY7C65630 USB 2.0 4-Port Hub Reference Design Kit

CY7C65620 USB 2.0 2-Port Hub Reference Design Kit

CY4605

Document Number: 38-08037 Rev. *M

Page 22 of 25

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CY7C656xx

Package Diagram

The CY7C656xx is available in a space saving 56-pin QFN (8 × 8 mm).

Figure 6. 56-Pin Sawn QFN (8 X 8 X 1.00 mm)

51-85187 *D

Figure 7. 56-Pin QFN 8 x 8 mm LF56A (Subcon Punch Type with 6.1 x 6.1 EPad)

3)$% 6)%7

"/44/- 6)%7

ꢍꢃꢁ

4/0 6)%7

ꢄꢃꢄꢇ;ꢄꢃꢄꢄꢀ=

#

ꢂꢃꢅꢄ;ꢄꢃꢀꢁꢁ=

ꢇꢃꢁꢄ;ꢄꢃꢀꢁꢅ=

!

ꢁꢃꢄꢄ;ꢄꢃꢄꢀꢅ= -!8ꢃ

ꢄꢃꢇꢄ;ꢄꢃꢄꢀꢁ= -!8ꢃ

ꢄꢃꢄꢈ;ꢄꢃꢄꢄꢆ= -!8ꢃ

ꢄꢃꢆꢄ;ꢄꢃꢄꢄꢇ= 2%&ꢃ

ꢄꢃꢁꢇ;ꢄꢃꢄꢄꢂ=

ꢄꢃꢆꢇ;ꢄꢃꢄꢁꢁ=

ꢂꢃꢂꢄ;ꢄꢃꢀꢄꢀ=

ꢂꢃꢇꢄ;ꢄꢃꢀꢄꢂ=

0).ꢁ )$

ꢄꢃꢆꢄ;ꢄꢃꢄꢄꢇ= 2ꢃ

.

ꢁ

ꢆ

ꢄꢃꢊꢈ;ꢄꢃꢄꢁꢇ=

ꢀꢁ=

!ꢃ

62/'(5$%/(ꢂ

ꢂ(;326('ꢂ

ꢂ3$'

ꢍꢃꢁ

ꢄꢃꢆꢊ;ꢄꢃꢄꢄꢅ=

ꢄꢃꢍꢄ;ꢄꢃꢄꢆꢊ=

ꢉꢊ8ꢋ

ꢄ²ꢌꢁꢆ²

ꢄꢃꢀꢄ;ꢄꢃꢄꢁꢆ=

ꢄꢃꢈꢄ;ꢄꢃꢄꢆꢄ=

#

3%!4).' 0,!.%

ꢍꢃꢊꢈ;ꢄꢃꢆꢈꢊ=

ꢍꢃꢈꢈ;ꢄꢃꢆꢈꢇ=

127(6ꢅ

ꢀꢁꢂꢂꢂꢂꢂꢂꢂ+$7&+ꢂ$5($ꢂ,6ꢂ62/'(5$%/(ꢂ(;326('ꢂ0(7$/ꢁ

ꢃꢁꢂ5()(5(1&(ꢂ-('(&ꢄꢅꢂ02ꢆꢃꢃꢇ

ꢌꢁꢂ3$&.$*(ꢂ:(,*+7ꢅꢂꢇꢁꢀꢋꢃJ

ꢈꢁꢂ$//ꢂ',0(16,216ꢂ$5(ꢂ,1ꢂ00ꢂ>0,1ꢉ0$;@

ꢊꢁꢂ3$&.$*(ꢂ&2'(

3$57ꢂꢄ

/)ꢊꢋ

/<ꢊꢋ

'(6&5,37,21

67$1'$5'

3%ꢆ)5((

51-85144 *G

Document Number: 38-08037 Rev. *M

Page 23 of 25

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CY7C656xx

Document History Page

Document Title: CY7C656xx EZ-USB HX2LP™ Low Power USB 2.0 Hub Controller Family

Document Number: 38-08037

Orig. of

Change

Submission

Date

Rev. ECN No.

Description of Change

**

131505

231329

JTC

02/12/2004 New data sheet

*A

KKU

See ECN Changed load capacitors to 12 pF, updated part numbers, added functional

overviews, block descriptions, pin configurations, default descriptors, configura-

tions options, supported USB requests, electrical characteristics and package

diagram

*B

*C

250869

330195

ARI

See ECN Added typical values for Icc in the DC Electrical Characteristics table, changed MPN

CY7C65650 to CY7C65640B, added CY7C65620 package

KKU

See ECN Added Reset period in to the table in section ‘Serial Peripheral Interface’

Added 0xD4 EEPROM Load

Added vendor command values

Added V_CCramp rate

Updated block diagram

*D

342997

KKU

See ECN Updated features list

Removed from the Enumeration section “Once the hub is configured, the full hub

functionality is available”

Added reference to 0xD4 load to the Downstream Ports section

Added reference to polarity control in the Power Switching and Over-current

Detection sections

Updated the Automatic Port State to Port Indicator Color Mapping table to match

USB-IF spec changes

Added LED modulation to the Port Indicators section

Updated pin description table - SELFPWR# to SELFPWR and removed references

to limitations of bus powered. Added reference to polarity control on PWR#,

OVR# and LED control lines

Updated Default descriptors

Updated EEPROM list to include 25LC080

Removed NoEOPatEOF1 bit

Added LED polarity control

*E

498396

TEH

See ECN Removed all references to HX1TT and Multi-TT

Updated Block Diagrams to remove ports and TTs

Removed Preliminary

Updated Device ID default

Added Write Protect Description

Correct sample schematics to reflect latest RDK

Updated Power Consumption Numbers

Updated Part Numbers

*F

570287

852600

ARI

See ECN Corrected typo in Table 3. Changed downstream port 4 signal labels from [3] to [4].

Added dimensions of E-Pads to Figure 6.

*G

KKU

See ECN Changed feature “2-Port Single TT for bus power support” to “Bus powered config-

urations”

Updated figure 5.

Added blank EEPROM statement to the Device Descriptor section

Added blank EEPROM statement to the Configuration Options section

Added indicator for factory fusable options.

Document Number: 38-08037 Rev. *M

Page 24 of 25

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CY7C656xx

Document History Page (continued)

Document Title: CY7C656xx EZ-USB HX2LP™ Low Power USB 2.0 Hub Controller Family

Document Number: 38-08037

Orig. of

Change

Submission

Date

Rev. ECN No.

Description of Change

*H

1019740

KKU/ARI

See ECN Added to Features: Automotive AEC grade option (-40-85C).

Added to Part numbers: CY7C65630-56LFXA: 56-pin QFN 4-Port Automotive AEC

grade.

Added absolute ambient temperature with power applied for automotive part.

Added operational Ambient Temperature Under Bias for automotive part.

Replaced TBD under absolute maximum power dissipation with 0.9 Watts.

Removed internal part numbers referenced in figure 6 note 5.

Changed “USB 2.0-Compliant” to “USB 2.0-Certified”

Removable Ports updated to reflect logical ports. Edited for active voice.

*I

2238608

2370406

KKU

See ECN Block diagrams for CY7C656530 and CY7C65620 were altered in the *H revision

and should not have been. Reverted diagrams to *G version

*J

*K

*L

PYRS

See ECN Changing the status from Preliminary to Final as per author’s confirmation

02/10/09 Added package diagram for 56-pin Sawn QFN.

2657415 DPT/PYRS

2705817 GOR/PYRS

05/13/09 Added new part numbers to the ordering information table

*M

2719596 VIVG/AESA 06/16/2009 Added CY7C65620-56LFXA part in the ordering information table

Sales, Solutions, and Legal Information

Worldwide Sales and Design Support

Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office

closest to you, visit us at cypress.com/sales.

Products

PSoC

psoc.cypress.com

clocks.cypress.com

wireless.cypress.com

memory.cypress.com

image.cypress.com

Clocks & Buffers

Wireless

Memories

Image Sensors

any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for

medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as

critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems

application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),

United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,

and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress

integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without

the express written permission of Cypress.

Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not

assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where

a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer

assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

Document Number: 38-08037 Rev. *M

Revised June 12, 2009

Page 25 of 25

TetraHub and EZ-USB HX2LP are trademarks of Cypress Semiconductor Corporation. All other product and company names mentioned in this document are trademarks of their respective holders.

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型号：	CY7C65620-56LTXCT
厂家：	CYPRESS
描述：	EZ-USB HX2LP Low Power USB 2.0 Hub Controller Family EZ -USB HX2LP低功耗USB 2.0集线器控制器系列总线控制器微控制器和处理器外围集成电路时钟
文件：	总25页 (文件大小：535K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

CY7C65620-56LTXCT [CYPRESS]

相关型号：

CY7C65620-56LTXI

CY7C65620-56LTXI

CY7C65620-56LTXIT

CY7C65620-56LTXIT

CY7C656205-56LTXC

CY7C656205-56LTXCT

CY7C65620_1105

CY7C65620_12

CY7C65620_13

CY7C65621

CY7C65621-56LFXC

CY7C65621-56LTXC