CY7C65621-56LTXI_技术文档

CY7C65621/31

EZ-USB HX2LP Lite™

Low Power USB 2.0 Hub Controller Family

EZ-USB HX2LP Lite™ Low Power USB 2.0 Hub Controller Family

■ Integrated port status indicator control

Features

■ 24 MHz external crystal (integrated phase locked loop (PLL))

■ In-system EEPROM programming

■ USB 2.0 hub controller

■ Automotive and Industrial Grade option (–40 °C to 85 °C)

■ Compliant with the USB 2.0 specification

■ Configurable with external SPI EEPROM:

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

❐ Number of active ports

■ USB-IF certified: TID# 30000009

❐ 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

❐ Indicator pin polarity

❐ Compound device

❐ Enable full speed only

■ 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™)

■ Space saving 56-pin QFN

■ Single power supply requirement

❐ Internal regulator for reduced cost

■ Integrated upstream pull-up resistor

❐ Disable port indicators

❐ Ganged power switching

❐ Self and bus powered compatibility

❐ Fully configurable string descriptors for multiple language

support

■ Integrated pull-down resistors for all downstream ports

■ Integrated upstream and downstream termination resistors

Block Diagram – CY7C65631

D+

D -

High-Speed

USB Control Logic

USB 2.0 PHY

PLL

Serial

Interface

Engine

24 MHz

Crystal

SPI_SCK

SPI_SD

SPI Communication

Block

SPI_CS

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]

LED

D+ D- PWR#[1]

OVR#[1]

LED D+ D- PWR#[2]

LED

OVR#[3]

OVR#[2]

OVR#[4]

Cypress Semiconductor Corporation

Document Number: 001-52934 Rev. *I

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised May 26, 2017

CY7C65621/31

Block Diagram – CY7C65621

D+

D -

High-Speed

USB Control Logic

USB 2.0 PHY

Serial

Interface

Engine

24 MHz

PLL

SPI_SCK

SPI_SD

SPI_CS

SPI Communication

Block

Crystal

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: 001-52934 Rev. *I

Page 2 of 27

CY7C65621/31

Contents

Functional Description .....................................................4

USB Serial Interface Engine ........................................4

Hub Repeater ..............................................................4

Transaction Translator ................................................4

Applications ......................................................................4

Functional Overview ........................................................4

System Initialization .....................................................4

Enumeration ................................................................4

Downstream Ports .......................................................5

Upstream Port .............................................................5

Power Switching ..........................................................5

Overcurrent Detection .................................................5

Port Indicators .............................................................5

Pin Configuration .............................................................7

Pin Description .................................................................8

Default Descriptors ........................................................10

Device Descriptor ......................................................10

Configuration Descriptor ............................................10

Interface Descriptor ...................................................11

Endpoint Descriptor ...................................................11

Device Qualifier Descriptor ........................................11

Hub Descriptor ..........................................................12

Configuration Options ...................................................13

0xD0 Load .................................................................13

0xD2 Load .................................................................13

0xD4 Load .................................................................14

Supported USB Requests ..............................................17

Device Class Commands ..........................................17

Hub Class Commands ..............................................18

Upstream USB Connection ............................................20

Downstream USB Connections .....................................20

LED Connections ............................................................20

System Block Diagram ...................................................21

Absolute Maximum Ratings ..........................................22

Operating Conditions .....................................................22

Electrical Characteristics ...............................................22

DC Electrical Characteristics .....................................22

USB Transceiver .......................................................22

AC Electrical Characteristics .....................................22

Ordering Information ......................................................23

Ordering Code Definitions .........................................23

Package Diagram ............................................................24

Acronyms ........................................................................25

Document Conventions .................................................25

Units of Measure .......................................................25

Document History Page .................................................26

Sales, Solutions, and Legal Information ......................27

Worldwide Sales and Design Support .......................27

Products ....................................................................27

PSoC® Solutions ......................................................27

Cypress Developer Community .................................27

Technical Support .....................................................27

Document Number: 001-52934 Rev. *I

Page 3 of 27

CY7C65621/31

hub, the route only includes the repeater and no Transaction

Translator because the device and the hub operate 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.

Functional Description

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

high performance, low power USB 2.0 hub controllers. HX2LP

Lite 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 Transaction Translator (TT) logic. Cypress has also

integrated many 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:

Applications

Typical applications for the HX2LP Lite device family are:

■ Standalone hubs

1. CY7C65631: 4-port/single transaction translator

■ Motherboard hubs

This device option is for ultra low power applications that

require four downstream ports. All four ports share a single

transaction translator. The CY7C65631 is available in a 56

QFN and is also pin-for-pin compatible with the CY7C65640.

■ Monitor hubs

■ Advanced port replicators

■ Docking stations

2. CY7C65621:

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

Both ports share a single transaction translator. The

CY7C65621 is available in a 56 QFN.

■ Split-PC designs

■ External personal storage drives

■ Keyboard hubs

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.

Functional Overview

The Cypress CY7C65621/31 USB 2.0 hubs are high

performance, low system cost solutions for USB. The

CY7C65621/31 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.

USB Serial Interface Engine

The Serial Interface Engine (SIE) allows the CY7C65621/31 to

communicate with the USB host. The SIE handles the following

USB activity independently of the Hub Control Block.

■ Bit stuffing/unstuffing

■ Checksum generation/checking

■ TOKEN type identification

■ Address checking.

System Initialization

On power up, the CY7C65621/31 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 13 for more

details.

Hub Repeater

The Hub Repeater manages connectivity between upstream and

downstream facing ports that are operating at the same speed.

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

According to the USB 2.0 specification, the HUB Repeater

provides the following functions:

After reading the EEPROM, if VBUSPOWER (connected to

up-stream V_BUS) is high, CY7C65621/31 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,

CY7C65621/31 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 CY7C65621/31 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 CY7C65621/31 operates as a normal 1.x hub (operating at

full speed).

■ 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.

Transaction Translator

The Transaction Translator (TT) basically 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 a 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 Transaction Translator 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 Transaction

Translator. If a high speed device is connected to this high speed

Enumeration

After a USB Bus Reset, CY7C65621/31 is in an unaddressed,

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

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

configuration.

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

Document Number: 001-52934 Rev. *I

Page 4 of 27

CY7C65621/31

switch device. PWR [n]# output pins of the CY7C65621/31 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 can

be configured through the EEPROM; see 0xD4 Load on page 14.

Downstream Ports

The CY7C65621/31 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 13.

Downstream D+ and D– pull down resistors are incorporated in

CY7C65621/31 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). Upon 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 CY7C65621/31 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 0xD4 Load on page 14.

■ 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 when the port is enabled.

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.

Port Indicators

The USB 2.0 port indicators are also supported directly by

CY7C65621/31. 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 CY7C65621/31 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.

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.

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

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

operational mode of CY7C65621/31. The CY7C65621/31 port

indicators has two modes of operation: automatic and manual.

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.

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.

On power up the CY7C65621/31 defaults to automatic mode,

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

the functional status of the CY7C65621/31 port. In automatic

mode, the CY7C65621/31 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 on page 6 identifies the mapping of

color to port state in automatic mode.

Power Switching

The CY7C65621/31 includes interface signals for external port

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

configurations 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 over-current detection of

downstream ports is managed by control pins connected to an

external power

Document Number: 001-52934 Rev. *I

Page 5 of 27

CY7C65621/31

Table 1. Automatic Port State to Port Indicator Color Mapping ^[1]

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

programmable, see 0xD4 Load on page 14.

Table 2. Port Indicator Color Definitions in Manual Mode ^[2]

Color Definition Port State

Not Operational

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 allow 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, respectively.

Off

Amber

Error Condition

Fully Operational

Software Attention

Hardware Attention

Reserved

Green

Blinking Off/Green

Blinking Off/Amber

Blinking Green/Amber

Table 2 displays the color definition of the indicators when

CY7C65621/31 is in manual mode.^[1]

Notes

1. Information presented in Table 1 is from USB 2.0 Specification Tables 11-6.

2. Information presented in Table 2 is from USB 2.0 Specification 11-7.

Document Number: 001-52934 Rev. *I

Page 6 of 27

CY7C65621/31

Pin Configuration

Figure 1. 56-pin Quad Flat Pack No Leads (8 mm × 8 mm) ^[3]

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

3. NC and Rsvd are for CY7C65621 only.

Document Number: 001-52934 Rev. *I

Page 7 of 27

CY7C65621/31

Pin Description

Table 3. Pin Assignments ^[4]

CY7C65631 CY7C65621

Type

Default

Description

Name

VCC

GND

XIN

Name

VCC

GND

XIN

3

Power

Input

N/A

V_CC. This signal provides power to the chip.

7

V_CC. This signal provides power to the chip.

11

15

19

23

27

33

39

55

4

V_CC. This signal provides power to the chip.

GND. Connect to ground with as short a path as possible.

24 MHz Crystal IN or external Clock Input.

8

12

16

20

24

28

34

40

47

50

56

21

22

46

XOUT

RESET#

XOUT

RESET#

Output

Input

24 MHz Crystal OUT. (NC if external clock is used)

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. Other than this, no other special power up

procedure is required.

45

26

SELFPWR

Input

N/A

Self Power. Indicator for bus or self powered. 0 is bus powered,

1 is self powered.

VBUSPOWE VBUSPOWE

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).

R

SPI Interface

25

48

49

SPI_CS

SPI_SCK

SPI_SD

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 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

4. 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: 001-52934 Rev. *I

Page 8 of 27

CY7C65621/31

Table 3. Pin Assignments ^[4]<continue> (continued)

CY7C65631 CY7C65621

Type

Default

Description

Name

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] GREEN#[1]

Output

Input

O/Z

1

Z

LED. Driver output for green LED. Port indicator Support.

Default is Active LOW. Polarity is controlled through EEPROM.

OVR#[1]

PWR#[1]

OVR#[1]

PWR#[1]

Overcurrent Condition Detection Input. Default is active

LOW. Polarity is controlled through EEPROM.

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] GREEN#[2]

Output

Input

O/Z

1

Z

LED. Driver output for green LED. Port indicator support.

Default is active LOW. Polarity is controlled through EEPROM.

OVR#[2]

PWR#[2]

OVR#[2]

PWR#[2]

Overcurrent Condition Detection Input. Default is active

LOW. Polarity is controlled through EEPROM.

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 on the

CY7C65621/31.

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 on the

CY7C65621/31

52

PWR#[4]

NC

O/Z

Z

Power Switch Driver Output. Default is active LOW. Polarity

is controlled through EEPROM.

Document Number: 001-52934 Rev. *I

Page 9 of 27

CY7C65621/31

Default Descriptors

This section presents the different descriptors that are available. There is a table for each that lists the functionality of each descriptor.

Device Descriptor

The standard device descriptor for CY7C65621/31 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 CY7C65621/31 enumerates with the default descriptor

values as shown in the 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

2,3

4

0x0110

0x09

0x0200

0x09

USB Specification 2.0 (1.1 if forced FS)

Hub

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 ^[5]/0x07 ^[6]0x02 ^[5]/0x07 ^[6]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^[5]

bMaxPower

Notes

5. Configured speed descriptor.

6. Other speed descriptor.

Document Number: 001-52934 Rev. *I

Page 10 of 27

CY7C65621/31

Interface Descriptor

Byte

Full Speed

High Speed

0x09

Field Name

bLength

Description

0

1

2

3

4

5

6

7

8

0x09

0x04

0x00

0x01

0x09

0x00

9 bytes

0x04

bDescriptorType

bInterfaceNumber

bAlternateSetting

bNumEndpoints

bInterfaceClass

bInterfaceSubClass

bInterfaceProtocol

iInterface

Interface_Descriptor

0x00

0x01

0x09

0x00

Endpoint Descriptor

Byte

Full Speed

High Speed

0x07

Field Name

bLength

Description

0

1

0x07

0x05

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: 001-52934 Rev. *I

Page 11 of 27

CY7C65621/31

Hub Descriptor

Byte

All Speed

0x09

Field Name

bLength

Description

0

1

2

9 bytes

0x29

0x04 ^[7]

0x02

bDescriptorType

bNbrPorts

Hub descriptor

Number of ports supported, CY7C65631.

Number of ports supported, CY7C65621.

3, 4

0x0089 ^[7]wHubCharacteristics

b1, b0: Logical power switching mode

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

01: Individual port power switching (Default in CY7C65621/31)

b2: Identifies a compound device,

0: Hub is not part of a compound device (Default in CY7C65621/31),

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 over-current status (Default in

CY7C65621/31).

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 or

low speed downstream bus (Default in CY7C65621/31).

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 CY7C65621/31).

b15,. b8: Reserved

5

6

0x32 ^[7]

bPwrOn2PwrGood

bHubContrCurrent

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

0x28 ^[7]

Maximum current requirement for the Hub Controller at full speed.

Maximum current requirement for the Hub Controller at high speed.

0xAE ^[7]

7

8

0x00 ^[7]

0xFF ^[7]

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

7. This value is configured through the external EEPROM.

Document Number: 001-52934 Rev. *I

Page 12 of 27

CY7C65621/31

Byte 0: 0xD2

Configuration Options

Needs to be programmed with 0xD2

Byte 1: VID (LSB)

Systems using CY7C65621/31 may 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 CY7C65621/31 can

communicate with SPI EEPROM that are either double byte

addressed or single byte with the 9th bit within the instruction

byte, such as the 24LC040 parts use. The 25LC080 EEPROM

uses the double byte address format, and therefore the

CY7C656xx can communicate with these parts. The '010s and

'020s use the same command format as is used to interface with

the ‘040. Therefore, these can also be used to interface with the

CY7C65621/31.

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

Byte 7: EnabledOvercurrentTimer[3:0],

DisabledOvercurrentTimer[3:0]

0xD0 Load

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

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

0

1

2

3

4

5

6

0xD0

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

corresponding 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 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

VID (LSB)

VID (MSB)

PID (LSB)

PID (MSB)

reserved

DID (MSB)

reported

appropriately

in

the

0xD2 Load

HubDescriptor:DeviceRemovable field. Default: 0xFF.

Byte

Value (MSB->LSB)

Byte 9: MaximumPower

0

1

2

3

4

5

6

7

0xD2

This

value

is

reported

in

the

VID (LSB)

VID (MSB)

PID (LSB)

PID (MSB)

reserved

DID (MSB)

ConfigurationDescriptor:bMaxPower field and is the current

in 2 mA increments that is required from the upstream hub.

Default: 0x28 = 80 mA for full speed and 0x57 = 174 mA for

high speed.

Byte 10: HubControllerPower

This

HubDescriptor:bHubContrCurrent 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.

value

is

reported

in

the

EnabledOverCurrentTimer[3:0],

DisableOvercurrentTimer[3:0]

8

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

MaxPower

Byte 11: PowerOnTimer

9

This

value

is

reported

in

the

HubDescriptor:

10

11

12

HubControllerPower

PowerOnTimer

bPwrOn2PwrGood field and is the time in 2 ms intervals from

the SetPortPower command until the power on the

corresponding

downstream

port

is

good.

IllegalHubDescriptor, CompoundDevice,

FullspeedOnly, NoPortIndicators, Reserved,

GangPowered, Reserved, Reserved

Default: 0x32 = 100 ms.

Document Number: 001-52934 Rev. *I

Page 13 of 27

CY7C65621/31

Byte 12: IllegalHubDescriptor, CompoundDevice, Full

speedOnly, NoPortIndicators, Reserved, GangPowered,

SingleTTOnly

Factory

Byte

Value (MSB->LSB)

Fusible

15

HubControllerPowerHighSpeedSelf

Powered

Bit 7: IllegalHubDescriptor. For GetHubDescriptor request,

some USB hosts use a DescriptorTypeof 0x00 instead of

HUB_DESCRIPTOR, 0x29. According to the USB 2.0

standard, 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 may be set to allow CY7C65621/31 to accept a

DescriptorType of 0x00 for this command. Default is 1.

16

17

PowerOnTimer

IllegalHubDescriptor,

X

CompoundDevice, FullspeedOnly,

NoPortIndicators, Reserved,

GangPowered, SingleTTOnly,

Reserved

18

AmberPolarity, GreenPolarity,

ModulateIndicators,

PowerControlPolarity,

OverCurrentPolarity,

OverCurrentMode1,

OverCurrentMode2

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’.

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

only device. Default is set to ‘0’.

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’.

19

20

21

22

23

24

Write Protect

NumLangs

SupportedStrings

ActivePorts[3:0]

RemovablePorts[3:0]

LangID

Bit 3: Reserved. Set this bit to ‘0’.

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’.

X

a = 24 + 2N iManufacturer

b = a + 2N iProduct

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

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

c = b + 2N iSerialNumber

d = c + 2N iConfiguration(FS)

e = d + 2N iConfiguration(HS)

f = e + 2N iInterface(0)

g = f + 2N reserved

0xD4 Load

Factory

Fusible

Byte

Value (MSB->LSB)

0

1

2

3

4

5

6

7

0xD4

h = g + 2N Strings

VID (LSB)

VID (MSB)

PID (LSB)

PID (MSB)

reserved

X

N:NumLangs

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

HubControllerPowerHighSpeedBus

Powered

Reserved.

HubControllerPower Full Speed Self

Powered

Byte 6: DID (MSB)

Most Significant Byte of Device ID

Document Number: 001-52934 Rev. *I

Page 14 of 27

CY7C65621/31

Byte 7: EnabledOvercurrentTimer[3:0],

DisabledOvercurrentTimer[3:0]

Byte 17: IllegalHubDescriptor, CompoundDevice, Full

speedOnly, NoPortIndicators, Reserved, GangPowered,

Reserved

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 7: IllegalHubDescriptor. For GetHubDescriptor request,

some USB hosts use a DescriptorTypeof 0x00 instead of

HUB_DESCRIPTOR, 0x29. According to the USB 2.0

standard, 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 may be set to allow CY7C65621/31 to accept a

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

Byte 8: MaximumPower (Full Speed)

This

value

is

reported

in

the

ConfigurationDescriptor:bMaxPower field and is the current

in 2 mA increments that is required from the upstream hub

when connected at full speed. Default: 0x28 = 80 mA for full

speed.

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 9: MaximumPower (High Speed)

This

value

is

reported

in

the

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

only device. Default is set to ‘0’.

ConfigurationDescriptor:bMaxPower field and is the current

in 2 mA increments that is required from the upstream hub

when connected at high speed. Default: 0x57 = 174 mA for

high speed.

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

not report them as present in the HubDescriptor,

wHubCharacteristics b7 field. Default is set to ‘0’.

Byte 10: Reserved

Bit 3: Reserved. Set this bit to ‘0’.

Write zeros to this location.

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 11: Reserved

Write zeros to this location.

Byte 12: HubControllerPower (Full Speed, bus powered)

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

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

This

value

is

reported

in

the

HubDescriptor:bHubContrCurrent 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.

Byte 18: AmberPolarity, GreenPolarity, SelfPowerable,

ModulateIndicators, PowerControlPolarity,

OverCurrentPolarity, OverCurrentMode1,

OverCurrentMode2

Byte 13: HubControllerPower (High Speed, bus powered)

Bit 7: AmberPolarity. Indicates the polarity of the amber

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

This

value

is

reported

in

the

HubDescriptor:bHubContrCurrent 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 6: GreenPolarity. Indicates the polarity of the green

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

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.

Byte 14: HubControllerPower (Full Speed, self powered)

This

value

is

reported

in

the

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

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

savings. If ‘0’, the outputs are static.

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

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

active LOW.

Byte 15: HubControllerPower (High speed, self powered)

This

value

is

reported

in

the

HubDescriptor:bHubContrCurrent 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 2: OverCurrentPolarity. If set, the over-current inputs are

active HIGH. If not set, the over-current inputs are active

LOW.

Bit 1: OverCurrentMode1. Reported as bit 4 of the

wHubCharacteristics field of the hub descriptor. If set to ‘1’,

this bit disables over-current detection.

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

Bit 0: OverCurrentMode2. Reported as bit 3 of the

wHubCharacteristics field of the hub descriptor. If Bit 1 of this

byte is set to ‘0’, over-current detection is enabled. If this bit

(Bit 0) is set to ‘1’, the hub reports over-current on a per-port

basis. If set to ‘0’, the hub reports over-current as the

summation of all ports’ current draw.

corresponding

downstream

port

is

good.

Default: 0x32 = 100 ms.

Document Number: 001-52934 Rev. *I

Page 15 of 27

CY7C65621/31

Byte 19: Write Protect

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.

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

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

Byte 20: NumLangs

Byte 24: LangID

Number of supported string languages. CY7C656xx supports

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

number larger than 31, all string support is disabled.

Array of LangID codes supported by the hub. Each LangID

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

NumLangs entries (2 × NumLangs bytes).

Byte 21: SupportedStrings

Byte a: iManufacturer

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

supported, 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 addresses for the iManufacturer strings. Each

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

NumLangs entries (2 × NumLangs bytes). (The starting

EEPROM address is based upon the number entered for

NumLangs. The address a = 24 + (2 × NumLangs).

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).

Table 4. Byte 21 Supported Strings

Bit

7

Name

Description

The address b = a + (2 × NumLangs).

Reserved

Byte c: iSerialNumber

6

Array of addresses for the iSerialNumber strings. Each

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

NumLangs entries (2 × NumLangs bytes).

5

Interface (0) The iInterface string index

reported in the first interface

descriptor (alternate setting 0)

The address c = b + (2 × NumLangs).

4

3

iConfiguration (High speed) The iConfiguration

string index reported in the

Byte d: iConfiguration(Full Speed)

configuration descriptor, when

operating at high speed

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).

iConfiguration (Full speed) The iConfiguration

string index reported in the

The address d = c + (2 × NumLangs).

configuration descriptor, when

operating at full speed

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).

2

1

0

iSerial Number The iSerialNumber string index

reported in the device descriptor

The address e = d + (2 × NumLangs).

iProduct

The iProduct string index

reported in the device descriptor

Byte f: iInterface(0)

iManufacturer The iManufacturer string index

reported in the device descriptor

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 22: ActivePorts[3:0]

Byte g: iInterface(1)

Reserved

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

corresponding port is usable. For example, a two-port hub

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

number of ports reported in the Hub Descriptor: bNbrPorts

field is calculated from this. 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.

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

Document Number: 001-52934 Rev. *I

Page 16 of 27

CY7C65621/31

Supported USB Requests

Device Class Commands

Table 5. Device Class Requests

Request

bmRequestType bRequest

wValue

0x0000

wIndex

0x0000

wLength

Data

GetDeviceStatus

10000000B

0x00

0x0002

2 Byte Device

Status

GetInterfaceStatus

GetEndpointStatus

10000001B

0x00

0x0000

Zero or

0x0002

2 Byte

Interface

Status

10000010B

0x00

2 Byte

Endpoint

Status

GetDeviceDescriptor

10000000B

00000000B

10000001B

0x06

0x08

0x09

0xA

0x0001

0x0002

0x0006

0x0007

0x0000

Descriptor Descriptor

Language ID Length

GetConfigDescriptor

Zero or

Language ID Length

Descriptor Descriptor

GetDeviceQualifierDescriptor

GetOtherSpeedConfigurationDescriptor

GetConfiguration ^[8]

Zero or

Language ID Length

Descriptor Descriptor

Zero or

Language ID Length

Descriptor Descriptor

0x0000

0x0001

0x0000

0x0001

Configuration

Value

SetCongfiguration ^[8]

Configuration

Value

None

GetInterface

0x0000

Interface

Number

SetInterface

00000001B

0x0B

Alternate Setting Interface

Number

0x0000

None

SetAddress

00000000B

0x05

0x03

0x01

Device Address 0x0000

0x0000

None

SetDeviceRemoteWakeup

SetDeviceTest_J

0x01

0x02

0x00

0x01

0x00

0x0000

0x0100

0x0200

0x0300

0x0400

0x0000

SetDeviceTest_K

SetDeviceTest_SE0_NAK

SetDeviceTest_Packet

SetEndpointHalt

ClearDeviceRemoteWakeup

ClearEndpointHalt

Note

8. Only one configuration is supported in CY7C656xx.

Document Number: 001-52934 Rev. *I

Page 17 of 27

CY7C65621/31

Hub Class Commands

Table 6. Hub Class Requests

Request

bmRequestType bRequest

wValue

wIndex

0x0000

wLength

Data

GetHubStatus

10100000B

0x00

0x0000

0x0004

Hub status (See Table 11-19

of USB 2.0 Specifications)

Change Status (See Table

11-20 of USB 2.0

Specifications)

GetPortStatus

10100011B

0x00

Byte 0: 0x00 0x0004

Byte 1: Port

Port status (See Table 11-21

of USB 2.0 Specifications)

Change Status (See Table

11-20 of USB 2.0

Specifications)

ClearHubFeature

ClearPortFeature

SetHubFeature

SetPortFeature

00100000B

00100011B

00100000B

00100011B

0x01

0x03

Feature Selectors^[9]0 or 0x0000

1

Feature Selectors^[9]1, Byte 0: 0x00 0x0000

2, 8, 16, 17, 18, 19, or 20 Byte 1: Port

0x0000

None

Feature Selectors^[9]22 Byte 0: -

0x0000

(PORT_INDICATOR)

Byte 1: Port

Feature Selector^[9]0 or 0x0000

1

Feature Selectors^[9]2, 4 Port

or 8

None

Feature Selector^[9]21 Byte 0:

(PORT_TEST)

Selectors^[9]

1,2, 3, 4 or 5

Byte 1: Port

SetPortFeature

00100011B

10100000B

0x03

0x06

Feature Selector^[9]22 Byte 0:

0x0000

None

(PORT_INDICATOR)

Selectors^[10]

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

0x0000

TT_Port

0x0000

None

Byte 0: 0x00 0x0000

Byte 1: Port

GetTTState

StopTT

10100011B

00100011B

0X0A

0x0B

TT_Flags

0x0000

Byte 0: 0x00 TT State TT State

Byte 1: Port Length

Byte 0: 0x00 0x0000

Byte 1: Port

None

Notes

9. Feature selector values for different features are presented in Table 7 on page 19.

10. Selector values for different features are presented in Table 9 on page 20.

Document Number: 001-52934 Rev. *I

Page 18 of 27

CY7C65621/31

Table 6. Hub Class Requests<continue> (continued)

Request

bmRequestType bRequest

wValue

wIndex

0x00

wLength

Data

Vendor Commands

Read EEPROM

11000000B

0x02

0x00

Length

Data

This request results in length bytes of data being read 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 length bytes of data being written 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 7. Hub Class Feature Selector

Table 8. Test Mode Selector for Feature Selector

PORT_TEST (0x21)^[11]

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

Note

11. Selector values for different features are presented in Table 8 on page 19.

Document Number: 001-52934 Rev. *I

Page 19 of 27

CY7C65621/31

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

Port Indicator Color

Selector Value

Port Indicator Mode

Color set automatically as shown in Table 1 on page 6

0

1

2

3

Automatic mode

Manual mode

Amber

Green

Off

Upstream USB Connection

The following is a schematic of the USB upstream connector.

Figure 2. USB Upstream Port Connection

BUSPOWER

VCC

D–

2.2 μF

10 V

D+

100 kΩ

GND

SHELL

Downstream USB Connections

The following is a schematic of the USB downstream connector.

Figure 3. USB Downstream Port Connection

PWRx

VCC

150 µF

10 V

0.01 µF

DD–[X]

DD+[X]

D–

D+

GND

SHELL

LED Connections

The following is a schematic of the LED circuitry.

Figure 4. USB Downstream Port Connection

3.3 V

680Ω

GREEN#[x]

AMBER#[x]

680Ω

Document Number: 001-52934 Rev. *I

Page 20 of 27

CY7C65621/31

System Block Diagram

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

5 V

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

10 V

Power

Management

D+

150 kΩ

0.01 μF

D+

PWR2

OVR2

PWR3

GND

SHELL

GND

OVR3

PWR4

OVR4

SHELL

3.3 V

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

10 V

CS

SPI

GND

EEPROM

SHELL

24 MHz

3.3 V

680Ω

GREEN#[2]

AMBER#[2]

3.3 V

12 pF

680Ω

10K

SELFPWR

DsPWR3

VCC

D–

GREEN[1]

AMBER[1]

GREEN[1]

AMBER[1]

DD-[3]

DD+[3]

0.01 μF

VBUSPOWER

3.3 V

VBUSPOWER

150 μF

10 V

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 Lite

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

10 V

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: 001-52934 Rev. *I

Page 21 of 27

CY7C65621/31

Absolute Maximum Ratings

Operating Conditions

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

T_A(Ambient temperature under bias):

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

Industrial ..................................................... –40 °C to 85 °C

Automotive .................................................. –40 °C to 85 °C

Ambient temperature with power applied:

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

Industrial ..................................................... –40 °C to 85 °C

Automotive .................................................. –40 °C to 85 °C

Supply voltage .........................................+3.15 V to +3.45 V

Ground voltage ................................................................ 0 V

Supply voltage to ground potential ..............–0.5 V to +4.0 V

DC voltage applied to outputs

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

Oscillator or Crystal Frequency (F_OSC),

parallel resonant,

12-pF load capacitance, 0.5 mW ................24 MHz ± 0.05%

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

Static discharge voltage ..........................................> 2000 V

Maximum output sink current per I/O ......................... 10 mA

Electrical Characteristics

DC Electrical Characteristics

Parameter

V_CC

V_CCRampUp Ramp rate on V_CC

Description

Conditions

Min

3.15

–

Typ

3.3

–

Max

3.45

18

Unit

V

Supply voltage

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

Supply Current

2

–

5.25

0.8

–0.5

–

V

I_l

0 < V_IN< V_CC

–

±10

μA

V

V_OH

V_OL

I_OH

I_OL

I_OUT= 4 mA

I_OUT= –4 mA

2.4

–

0.4

4

V

–

mA

pF

μA

–

4

C_IN

I_SUSP

I_CC

–

10

–

80

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: 001-52934 Rev. *I

Page 22 of 27

CY7C65621/31

Table 10. Serial Peripheral Interface

Parameter Description

Clock rise/fall time

Conditions

Min

–

Typ

–

Max

500

250

–

Unit

ns

Clock frequency

Data setup time

Hold time

–

kHz

ns

50

100

1.9

–

ns

Reset period

–

ms

Ordering Information

Ordering Code

Package Type

CY7C65621-56LTXC

CY7C65621-56LTXI

CY7C65621-56LTXCT

CY7C65621-56LTXIT

CY7C65631-56LTXC

CY7C65631-56LTXI

CY7C65631-56LTXCT

CY7C65631-56LTXIT

CY4606

56-pin QFN 2-Port

56-pin QFN 2-Port – Tape and Reel

56-pin QFN 4-Port

56-pin QFN 4-Port – Tape and Reel

CY7C65631 USB 2.0 4-Port hub reference design kit

CY7C65621 USB 2.0 2-Port hub reference design kit

CY4605

Ordering Code Definitions

CY

7

C

65 XXX - 56LT

X

X = blank or T

blank = Tube; T = Tape and Reel

Temperature Range: X = C or I or A

C = Commercial; I = Industrial; A = Automotive

Pb-free

Package Type:

56LT = 56-pin QFN (Sawn Type)

XXX = 621 or 631

621 = Two port hub; 631= Four port hub

Family Code:

65 = USB Hubs

Technology Code: C = CMOS

Marketing Code: 7 = Cypress products

Company ID: CY = Cypress

Document Number: 001-52934 Rev. *I

Page 23 of 27

CY7C65621/31

Package Diagram

The CY7C65621/31 is available in a space saving 56-pin QFN (8 × 8 mm).

Figure 6. 56-pin QFN (8 × 8 × 1.0 mm) LT56 6.1 × 6.1 E-Pad (Sawn) Package Outline, 51-85187

51-85187 *G

Document Number: 001-52934 Rev. *I

Page 24 of 27

CY7C65621/31

Acronyms

Document Conventions

Table 11. Acronyms Used in this Document

Units of Measure

Acronym

Description

Table 12. Units of Measure

EEPROM

electrically erasable programmable read-only

memory

Symbol

°C

Unit of Measure

degree Celsius

kilohertz

kilohm

I/O

input/output

kHz

kΩ

MHz

µA

µF

mA

mm

ms

mW

ns

LED

LSB

MSB

PLL

SIE

light-emitting diode

least-significant bit

megahertz

microampere

microfarad

milliampere

millimeter

millisecond

milliwatt

most-significant bit

phase locked loop

serial interface engine

serial peripheral interface

read-only memory

SPI

ROM

QFN

TT

quad-flat no-leads

nanosecond

ohm

transaction translator

universal serial bus

universal serial bus implementor’s forum

Ω

USB

USB-IF

%

percent

pF

picofarad

volt

V

W

watt

Document Number: 001-52934 Rev. *I

Page 25 of 27

CY7C65621/31

Document History Page

Document Title: CY7C65621/31, EZ-USB HX2LP Lite™ Low Power USB 2.0 Hub Controller Family

Document Number: 001-52934

Orig. of

Change

Submission

Date

Rev.

ECN

Description of Change

**

2683316

OGC /

PYRS

04/15/2009 New data sheet.

*A

2937054

STVC

05/25/2010 Updated table formats across the document.

Updated Pin Description:

Updated Table 3:

Updated details in “Description” column corresponding to Pin 51 and Pin 53.

Updated Ordering Information:

No change in part numbers.

Rearranged parts in alphabetical order.

Updated Package Diagram:

spec 51-85187 – Changed revision from *C to *E.

Removed spec 51-85144 *G.

Updated to new template.

*B

*C

2953993

3180356

DSG

ODC

06/16/2010 Updated Ordering Information:

Updated part numbers.

02/23/2011 Removed Automotive Temperature Range related information in all instances

across the document.

Added Ordering Code Definitions under Ordering Information.

Added Acronyms and Units of Measure.

Updated to new template.

*D

*E

3404912

3453432

AASI

10/13/2011 Added watermark “Not Recommended for New Designs” across the document.

ASHC

12/07/2011 Removed watermark “Not Recommended for New Designs” across the

document.

Updated Package Diagram:

spec 51-85187 – Changed revision from *E to *F.

Updated to new template.

*F

3846590

4799279

PDAV

GINS

12/19/2012 Updated Features (Added Industrial Grade and Automotive Grade

information).

Updated Absolute Maximum Ratings (Added Industrial Grade and Automotive

Grade information).

Updated Operating Conditions (Added Industrial Grade and Automotive Grade

information).

Updated Ordering Information (Updated part numbers).

*G

06/16/2015 Updated Package Diagram:

spec 51-85187 – Changed revision from *F to *G.

Updated to new template.

Completing Sunset Review.

*H

*I

5316710

5751250

HBM

06/21/2016 Updated System Block Diagram:

Updated Figure 5.

HARA

05/26/2017 Updated logo and copyright.

Document Number: 001-52934 Rev. *I

Page 26 of 27

CY7C65621/31

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 Locations.

®

Products

PSoC Solutions

ARM^®Cortex^®Microcontrollers

cypress.com/arm

cypress.com/automotive

cypress.com/clocks

cypress.com/interface

cypress.com/powerpsoc

cypress.com/memory

cypress.com/psoc

Automotive

PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP

Clocks & Buffers

Interface

Cypress Developer Community

Community | Forums | Blogs | Video | Training

Lighting & Power Control

Memory

Technical Support

cypress.com/support

PSoC

Touch Sensing

USB Controllers

Wireless/RF

cypress.com/touch

cypress.com/usb

cypress.com/wireless

including any software or firmware included or referenced in this document ("Software"), is owned by Cypress under the intellectual property laws and treaties of the United States and other countries

worldwide. Cypress reserves all rights under such laws and treaties and does not, except as specifically stated in this paragraph, grant any license under its patents, copyrights, trademarks, or other

intellectual property rights. If the Software is not accompanied by a license agreement and you do not otherwise have a written agreement with Cypress governing the use of the Software, then Cypress

hereby grants you a personal, non-exclusive, nontransferable license (without the right to sublicense) (1) under its copyright rights in the Software (a) for Software provided in source code form, to

modify and reproduce the Software solely for use with Cypress hardware products, only internally within your organization, and (b) to distribute the Software in binary code form externally to end users

(either directly or indirectly through resellers and distributors), solely for use on Cypress hardware product units, and (2) under those claims of Cypress's patents that are infringed by the Software (as

provided by Cypress, unmodified) to make, use, distribute, and import the Software solely for use with Cypress hardware products. Any other use, reproduction, modification, translation, or compilation

of the Software is prohibited.

TO THE EXTENT PERMITTED BY APPLICABLE LAW, CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS DOCUMENT OR ANY SOFTWARE

OR ACCOMPANYING HARDWARE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. To the extent

permitted by applicable law, Cypress reserves the right to make changes to this document without further notice. Cypress does not assume any liability arising out of the application or use of any

product or circuit described in this document. Any information provided in this document, including any sample design information or programming code, is provided only for reference purposes. It is

the responsibility of the user of this document to properly design, program, and test the functionality and safety of any application made of this information and any resulting product. Cypress products

are not designed, intended, or authorized for use as critical components in systems designed or intended for the operation of weapons, weapons systems, nuclear installations, life-support devices or

systems, other medical devices or systems (including resuscitation equipment and surgical implants), pollution control or hazardous substances management, or other uses where the failure of the

device or system could cause personal injury, death, or property damage ("Unintended Uses"). A critical component is any component of a device or system whose failure to perform can be reasonably

expected to cause the failure of the device or system, or to affect its safety or effectiveness. Cypress is not liable, in whole or in part, and you shall and hereby do release Cypress from any claim,

damage, or other liability arising from or related to all Unintended Uses of Cypress products. You shall indemnify and hold Cypress harmless from and against all claims, costs, damages, and other

liabilities, including claims for personal injury or death, arising from or related to any Unintended Uses of Cypress products.

Cypress, the Cypress logo, Spansion, the Spansion logo, and combinations thereof, WICED, PSoC, CapSense, EZ-USB, F-RAM, and Traveo are trademarks or registered trademarks of Cypress in

the United States and other countries. For a more complete list of Cypress trademarks, visit cypress.com. Other names and brands may be claimed as property of their respective owners.

Document Number: 001-52934 Rev. *I

Revised May 26, 2017

Page 27 of 27


型号：	CY7C65621-56LTXI
厂家：	CYPRESS
描述：	USB Bus Controller, CMOS, QFN-56 时钟外围集成电路
文件：	总27页 (文件大小：380K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

CY7C65621-56LTXI [CYPRESS]

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