Cypress CY7C656xx, EZ-USB HX2LP User Manual

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PRELIMINARY

™

ily

CY7C656x

EZ-USB HX2LP

Low-Power USB 2.0 Hub Controller Fam

1.0 Features

• USB 2.0 hub controller

• Compliant with the USB 2.0 specification



• Windows

• Up to four downstream ports supported

• Supports bus-power and self powered modes

• Single-TT and Multi-TT modes supported —Single-TT option for low-cost —Multi-TT option for high performance

•2-Port —Single TT option for bus power

• Fit/form/function compatible option with CY7C65640

(TetraHub)

• Multiple package options —Space -saving 56 QFN

• Single power supply requirement —Internal regulat or for reduced cost

• Integrated up stream pull-up resist or

• Integrated pull -down resistors for a ll downstream port s

• Integrated up stream and downstream terminati on

resistors

• Integrated port status indicator controls

• 24-MHz external crystal (inte grated PLL)

• Configurable with external SPI EEPROM —Ven dor ID, Product ID, Device ID (VID/PID/DID) —N um ber of active ports —N um ber of removable ports —Maximum power setting for high-speed and full-

speed —H ub controller power setting —Power-on timer —Overcurrent detection mode —Overcurrent timer —Enable/Disable overcurrent timer —Overcurrent pin polarity —indicator pin polar ity —Compound device —Enable full-speed only —Disable port indicators —Gang power switching —Enable single-TT mode only —Self/bus powered compatibility —Fully configurable string descriptors for multiple

language support

• In-system EEPROM programming

Hardware-quality lab (WHQL)-compliant

2.0 Introduction

EZ-USB HX2LP is Cypress’s nex t- generat ion fami ly of highperformance, low-powe r 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 Inter face Engine (SIE), USB Hub Con tr ol and Repeate r logic, and T ransac tion T ranslat or (TT) l ogic. Cypress has also integrated many of the external passive component s, such as pull-up and pull-down resistors, reducing the overall bill-ofmaterials required to implement a hub design. The entire HX2LP portfolio consi sts of:

1. CY7C65640B (TetraHub LP): 4-port/multiple transaction translator

This device option is fit/form/function compatible with Cypress’s existing CY7C65640 device. Cypress’s “Tetra” architecture provi des four downstream USB ports, each with a dedicated T ransact ion T ranslator (TT), maki ng it t he highest-performance hub available. The TetraHub LP also offers best-in-class power consumption. The CY7C65640B is available in a 56 QF N (TetraHub pin-compatible) for space saving designs.

2. CY7C65630: 4-port/single transaction translator This device option is for ultra low-cost applications where

performance is secondary consideration. All four ports must share a single transaction translator in this configuration. The CY7C65630 is available in a 56 QFN and is also pin for pin-compatible with the CY7C65640.

3. CY7C65620: This device option is for a 2-port bus powered application.

Both ports must share a single transaction translator in this configuration. The CY7C65620 is available in a 56 QFN and is also pin for pin compatible with the CY7C65640.

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.

Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 Document #: 38-08037 Rev. *D Revised March 31, 2005

3.0 Block Diagrams

D+ D -

PRELIMINARY

CY7C656x

MHz

Crystal

USB 2.0 PHY

PLL

USB Upstream Port

Hub Repeater

USB Downstream Port 1

USB 2.0

PHY

Port Power

Control

Port

Status

Interface

USB Downstream Port 2

USB 2.0

PHY

Port Power

Control

Serial

Engine

Transaction Translator (X4)

Routin g L o gi c

USB Downstream Port 3

Port

Status

USB 2.0

PHY

TT RAM

Port Power

Control

USB Control Logic

SPI Communication

Port

Status

USB 2.0

High-Speed

Block

USB Downstream Port 4

PHY

Port Power

Control

Port

Status

SPI_SCK

SPI_SD SPI_CS

OVR #[ 1 ]

LED

OVR #[ 2 ]

LEDD+ D- P WR#[1]

OVR#[3]

LEDD+ D- PWR#[2]

D+ D- PWR#[4]

OVR #[ 4 ]

LEDD+ D- PWR#[3]

Figure 3-1. CY7C65640B Block Diagram

Document #: 38-08037 Rev. *D Page 2 of 23

3.0 Block Diagrams (continued)

D+ D -

PRELIMINARY

CY7C656x

24 MHz

Crys ta l

USB 2.0 PHY

PLL

USB Upstream Port

Hub Repeater

USB Downstream Port 1

USB 2.0

Port Power

PHY

Control

OVR # [1]

Port

Status

LED

Interface

USB Downstream Port 2

USB 2.0

Port Power

PHY

Control

OVR # [2]

Serial

Engine

Transac t ion Translator (X1)

Routing Logic

USB Downstream Port 3

Port

USB 2.0

Status

PHY

LEDD+ D- P W R#[1]

TT RA M

Port Power

Control

OVR # [3]

USB C ontrol Logi c

SPI Communication

Port

USB 2 .0

Status

D+ D- PW R#[ 4 ]

LEDD+ D- PWR#[2]

High-Speed

Block

USB Downstream Port 4

PHY

Port Power

Control

OVR#[4]

Port

Status

SPI_SCK

SPI_SD SPI_CS

LEDD+ D- PW R#[3]

This applies to CY7C65630 only.

Figure 3-2. CY7C65630/CY7C65620 Block Diagram

Document #: 38-08037 Rev. *D Page 3 of 23

PRELIMINARY

CY7C656x

3.1 USB Serial Interface Engine (SIE)

The SIE allows the CY7C656x x to commu nicate wit h the USB host through the USB repeater component of the HUB. The SIE handles the following USB activity independently of the HUB Control Block:

• Bit stuffing/unstuffing

• Checksum generation/checking

• ACK/NAK/STALL

• TOKEN type identification

• Address checking.

3.2 Hub Repeater

The HUB Repeater manages the connectivity between upstream and downstream facing ports that are operating at the same speed. It supports full-/low-speed connectivity and high-speed connectivity. Per the USB 2.0 specification, the HUB Repeater provides the following functions:

• Sets up a nd tears down connectivity on packet boun daries

• Ensures orderly entry into and out of the Suspend state, including proper handling of remote wakeups.

3.3 Transaction T r anslator (TT)

The TT basically transl ates dat a from one sp eed to another. A TT takes high-speed split transactions and translates them to full-/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-/low-speed devices at tached. The operating spee d of a device at tached on a downstream fac ing port determi nes whether the Routing Logi c connects a port to the Transaction Translator or Hub Repeater section. If a low/full-speed device is connected to the hub operating at highspeed, the data transfer route includes the transaction translator. If a high-speed device is connected to this high-speed hub the route only includes the repeater and no transaction translator since the device and the hub are in conformation with respect to their data transfer speed. When the hub is operating at full speed (the upstream port is connected to a full-speed host controller), a high-speed peripheral will not operate at its f ull capabi lity . The se devices will onl y work at 1.1 speed. Full- and low-speed devices connected to this hub will operate at their 1. 1 speed.

4.0 Applications

• Ty pical applications for the HX2LP device family are :

• St andalone hubs

• Motherboard hubs

• Monitor hubs

• Advanced port replicators

• Docking stations

• Split-PC designs

• External personal storage drives

• Keyboard hubs

5.0 Functional Overview

The Cypress CY7C656xx USB 2.0 Hubs are a high-performance, low-system-cost solution for USB. The CY7C656xx USB 2.0 Hubs integrate 1.5k up stream pull-up resi stors for fullspeed operation and all downstream 15k pull-down resistors as well as 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.

5.1 System Initialization

On power-up, the CY7C656xx will read an external SPI EEPROM for configuration information. At the most basic level, this EEPROM will have the Vendor ID ( VID) , Product ID (PID), and Device ID (DID) for the customer 's application. For more speciali zed appl icati ons, othe r conf igurat ion opt ions can be specified. See secti on 9.0 for more detail s.

After reading the EEPROM, if BUSPOWER (connected t o upstream VBus) is HIGH, CY7C656xx will enable the pull-up resistor on the D+ to indicate that it is connected to the upstream hub, after which a USB Bus Reset is expected. During this reset, CY7C656xx will initiate a chirp to indicate that it is a high-speed peripheral. In a USB 2.0 system, the upstream hub will respond with a chirp sequence, and CY7C656xx will be 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 will be seen, and CY7C656xx will op erat e as a normal 1. x hub (operating at full speed).

5.2 Enume ration

After a USB Bus Reset, CY7C656xx is in an unaddressed, unconfigured state (configuration value set to 0). During the enumeration process, the host will set the hub's address and configuration by sending a SetCongfiguration request.

For high-speed multi-TT support, the host must also set the alternate inter face set ting t o 1 (the defau lt mode is singl e-TT) . Once the hub is configured, the full hub functionality is available.

5.3 Multiple Transaction Translator Support

After the CY7C65640B is configured in a high-speed system, it will be in Singl e TT mode. The host may t hen set the hub into Multiple TT mode by sending a SetInterface command. In Multiple TT mode, each full speed port is handled independently and thus has a full 12-Mbps bandwidth available. In Single TT mode, all traffic from the host destined for full- or low-speed ports will be forwarded to all of those ports. This means that the 12-Mbps bandwidth is shared by all full- and low-speed ports.

5.4 Down stream P orts

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, see section 9.2 or 0xD4 EEPROM load, see section 9.3). Downstream D+ and D– pull-down resistors are incorporated in CY7C656xx for each port. Prior to the hubs being configured, the ports are driven SE0 (Single Ended Zero, where both D+ and D– are driven low) and are set to the

Document #: 38-08037 Rev. *D Page 4 of 23

PRELIMINARY

CY7C656x

unpowered stat e. Once the hubs ar e configu red, the por ts ar e not driven, and the host may power the ports by sending a SetPortPower command to 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 SetPort R eset command from the host, the hub will

• Drive SE0 on the corresponding port

• Put the port in an enabled state

• Enable the green por t indicator for that port (i f not previously overridden by t he host)

• Enable babble detection once the port is enabl ed.

Babble consists of either unterminated traffic from a downstream port (o r loss of activi ty), or a non-idle condi tion on the port after EOF2. If babble is detected on an enabled port, that port will be disabl ed. A Cle arPort Enable comm and from the host will also disable the specifie d port.

Downstream ports can be individually suspended by the host with the SetPortSuspend command. If the hubs are not suspended, any res ume will be con fined t o that in divid ual port and reflected to the host through a port change indication in the Hub Status Change Endpoint. If the hubs are suspended, a resume on this port will be forwarded to the host, but other resume events will not be seen on that port. The host may resume the port by sendi ng a ClearPortSuspend com m and.

5.5 Upstream Port

The upstream port includes the transmitter and the receiver state machine. The Transmitter and Receiver operate in highspeed and full-speed depending on the current hub configuration.

The transmitter state machine monitors the upstream facing port while the Hub Repeater has conn ectivity in the upstr eam direction. This monitoring activity prevents propagation of erroneous indications in the upstream direction. In particular, 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 att ached. This all ows the Hub to only disco nnect th e offensi ve port on detecting a babble from it.

5.6 Power Switching

The CY7C656xx includes interface signals for external port power switches. Both ganged and individu al (per-por t) confi gurations 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 command for that port. The power switching and over-current detection of downstream ports is managed by control pins connected to an external power 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 t his pin can be configured through the EEPROM, see section 9.3.

5.7 Over-current Detection

Over-current detection includes timed detection of 8 ms by default. This parameter is configured from the external EEPROM in a range of 0 ms to 15 m s for both an enabled por t and a disabled port individually. Detection of over-current on downstream ports is managed by control pins conn ected to an external power switch device.

The OVR[n]# pins of the CY7C656xx serie s are connected to the respective external power switch's port over-current indication (output) signals. Upon detecting an over-current condition, the hub device r eports the over-current condition to the host and disables the PWR# output to the external power device. The polarity of this pin can be configured through the EEPROM, see section 9.3.

5.8 Port I ndicators

The USB 2.0 port indicators are also supported directly by the CY7C656xx. As per the specification, each downstream port of the hub support s an opti onal st atus i ndicat or. 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, this should be disabled by the EEPROM.

Each port indicator is strategically located directly on the opposite edge of the port which it is associated with. The indicator provides two colors: green an d am ber. This is implemented as two separate LEDs, one amber and the other green. A combi nation of hardware and soft ware contr ol is u sed to inform t he user of the cur rent stat us of the port or the d evice attached to the port and to guide the user through problem resolution. Colors and bl inking are use d to provide infor mation to the user . The signific ance of the color of th e LED depend on the operational mode of the CY7C656xx. There are tw o modes of operation for the CY7C656xx port indicat ors: automatic and manual.

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 will turn on the green LED whenever the port is en abled and the amber LED when i t has had an overcurrent condition detected. The color of the port indicator is se t by the p ort st ate m achine . Bli nking of the LEDs is not supported in Automat ic Mode. Table 5-1 below identifies the mapping of color to port state in Automatic Mode.

T able 5-1. Automatic Port State to Port Indicator Color Mapping

Downstream Facing Hub Port State

Powered Off

Off or Amber if due to an Overcurrent Condition

Document #: 38-08037 Rev. *D Page 5 of 23

Disconnected, Disabled, Not

Configured, Resetting, Testing

Off Green Off

Enable d , Transmit, or

TransmitR

Suspended, Resuming, SendEOR, Restart _E /S

PRELIMINARY

CY7C656x

The LED control lines can also be modulated with a square wave for power conservat ion in s ystems u sing batteri es. Alon e with this there is also a polarity control for these pins, see section 9.3.

In manual mode, the indicators are under the control of the host, which can turn on one of the LEDs, or leave them off. This is done by a system software USB Hub class request. Blinking of the LEDs is supported in Manual Mode. The port indicators allow the user to intervene on any error detection. For example, when babble is detected on plugging in a defective device, o r on occur rence of a n overcu rrent con dition, the port indicators corresponding to the downstream port will blink green or only light the amber LED, respecti vely.

Note:

1. Information presented in Table 5-1 and Table 5-2 is from USB 2.0 specification Tables 11-6 and 11-7, respectively.

Table 5-2 displays the color definition of the indicators when

CY7C656xx is in Manual Mode.

T able 5-2. Por t Indica tor Color Definitions i n Manual Mode

Color Definition Port Stat e

Off Not operational Amber Error condition Green Fully Operational Blinking Off/Green Software At tention Blinking Off/ Am ber Hardware Attention Blinking Green/Amber Reserved

[1]

Document #: 38-08037 Rev. *D Page 6 of 23

6.0 Pin Configuration

PRELIMINARY

CY7C656x

DD–[4]/NC

DD+[4]/NC

VCC

GND

DD–[3]/NC

DD+[3]/NC

VCC

GND

DD–[2]

DD+[2]

VCC

GND

PWR#[3]/NC

VCC

545556

OVR#[3]/NC

53 52

PWR#[4]/NC

GND

OVR#[4]/NC

51 50 49 48 47 46 45 44 43

SPI_SD

GND

SPI_SCK

RESET

SELFPWR

AMBER#[4]/NC

GREEN#[4]/NC

AMBER#[3]/NC

GREEN#[3]/NC

GND

VCC

AMBER#[2]

GREEN#[2]

AMBER#[1]

GREEN#[1]

GND

VCC

OVR#[2]

GND

DD–[1]

DD+[1]

VCC

Note:

2. NC are for CY7C65620 ONLY.

D–

D+

GND

VCC

XIN

GND

VCC

XOUT

GND

SPI_CS

VBUSPOWER

Figure 6-1. 56-pin Quad Flat Pack No Leads (8 mm x 8 mm)

PWR#[2]

OVR#[1]

PWR#[1]

2827262524232221201918171615

VCC

GND

[2]

Document #: 38-08037 Rev. *D Page 7 of 23

7.0 Pin Description Table

Table 7- 1 below displays the pin assignments.

T able 7-1. Pin Assignments

CY7C65640B /

CY7C65630 Pin

CY7C65620

Pin Name Type Default Description

3 3 VCC Power N/A V

7 7 VCC Power N/A V 11 11 VCC Power N/A V 15 15 VCC Power N/A V 19 19 VCC Power N/A V 23 23 VCC Power N/A V 27 27 VCC Power N/A V 33 33 VCC Power N/A V 39 39 VCC Power N/A V 55 55 VCC Power N/A V

4 4 GND Power N/A GND. Connect to Ground with as short a path as possible.

8 8 GND Power N/A GND. Connect to Ground with as short a path as possible. 12 12 GND Power N/A GND. Connect to Ground with as short a path as possible. 16 16 GND Power N/A GND. Connect to Ground with as short a path as possible. 20 20 GND Power N/A GND. Connect to Ground with as short a path as possible. 24 24 GND Power N/A GND. Connect to Ground with as short a path as possible. 28 28 GND Power N/A GND. Connect to Ground with as short a path as possible. 34 34 GND Power N/A GND. Connect to Ground with as short a path as possible. 40 40 GND Power N/A GND. Connect to Ground with as short a path as possible. 47 47 GND Power N/A GND. Connect to Ground with as short a path as possible. 50 50 GND Power N/A GND. Connect to Ground with as short a path as possible. 56 56 GND Power N/A GND. Connect to Ground with as short a path as possible. 21 21 XIN Input N/A 24-MHz Crystal IN or External Clock Input. 22 22 XOUT OutputN/A 24-MHz Crystal OUT.

[3]

PRELIMINARY

. This signal provid es power to the chip.

CY7C656x

46 46 RESET# I nput N/A Active LOW Reset. This pin resets the entire chip. It is

normally tied to V through a 0.1-µF capac itor . Other than this, no other special

through a 100K resistor, and to GND

power-up procedur e is required.

45 45 SELFPWR Input N/A Indicator for bus/se lf powered. 0 is bus powered, 1 is self-

powered.

26 26 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 st ate, and may enable the D+ pull-up resistor to indicate a connection. (The hub will do so afte r the ext ernal EEPROM is read, unless it is put into a high-speed mode by the upstr eam hub).

SPI Interface

25 25 SPI_CS O O SPI Chip Select. Connect to CS pin of the EEPROM. 48 48 SPI_SCK O O SPI Clock. Connect to EEPROM SCK pin. 49 49 SPI_SD I /O/Z Z SPI Dataline Connect to GND wi th 15- KΩ

resistor and to t he

Data I/O pins of the EEPROM.

Note:

3. Unused port DD+/DD– lines can be left floating. The port power, amber, and green LED pins should be left unconnected, and the overcurrent pin should be tied HIGH. The overcurrent pin is an input and it should not be left floating.

Document #: 38-08037 Rev. *D Page 8 of 23

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CY7C656x

T able 7-1. Pin Assignments (continued)

CY7C65640B /

CY7C65630 Pin

Upstream Port

17 17 D– I/O/Z Z Upstream D– Signal. 18 18 D+ I/O/Z Z Upstream D+ Signal.

Downstream Port 1

13 13 DD–[1] I/O/Z Z Downstream D– Signal. 14 14 DD+[1] I/O/Z Z Downstream D+ Signal. 36 36 AMBER#[1] O 1 LED. Driver output for Ambe r LED. Port I ndicator Support.

35 35 GREEN#[1] O 1 LED. Driver output for Green LED. Port Indicator Support.

30 30 OVR#[1] Input 1 Overcurrent Condition Detection Input. Defau lt is Active

29 29 PWR#[1] O/Z Z Power Switch Driver Output. Default is Ac tive LOW . Po lari ty

Downstream Port 2

9 9 DD–[2] I/O/Z Z Downstream D– Signal. 10 10 DD+[2] I/O/Z Z Downstream D+ Signal. 38 38 AMBER#[2] O 1 LED. Driver output for Ambe r LED. Port I ndicator Support.

37 37 GREEN#[2] O 1 LED. Driver output for Green LED. Port Indicator Support.

32 32 OVR#[2] Input 1 Overcurrent Condition Detection Input. Defau lt is Active

31 31 PWR#[2] O/Z Z Power Switch Driver Output. Default is Ac tive LOW . Po lari ty

Downstream Port 3

5 - DD–[3] I/O/Z Z Downstream D– Signal.

6 - DD+[3] I/O/Z Z Downstream D+ Signal. 42 - AMBER#[3] O 1 LED. Driver output for Amber LED. Port Indicator Support.

41 - GREEN#[3] O 1 LED. Driver output for Green LED. Port Indicator Support.

53 - OVR#[3] Input 1 Overcurrent Condition Detection Input. Defa u lt is Active

54 - PWR#[3] O/Z Z Power Switch Driver Output. Default is Acti ve LOW . Pola rity

Downstream Port 4

1 - DD–[3] I/O/Z Z Downstream D– Signal.

2 - DD+[3] I/O/Z Z Downstream D+ Signal. 44 - AMBER#[3] O 1 LED. Driver output for Amber LED. Port Indicator Support.

43 - GREEN#[3] O 1 LED. Driver output for Green LED. Port Indicator Support.

51 - OVR#[3] Input 1 Overcurrent Condition Detection Input. Defa u lt is Active

52 - PWR#[3] O/Z Z Power Switch Driver Output. Default is Acti ve LOW . Pola rity

CY7C65620

Pin Name Type Default Description

[3]

Default is Active LOW . Polarity is control led through EEPROM.

LOW. Polarity is controlled through EEPROM.

is controlled th rough EEPROM.

Default is Active LOW . Polarity is control led through EEPROM.

LOW. Polarity is controlled through EEPROM.

is controlled th rough EEPROM.

Default is Active LOW . Polarity is control led through EEPROM.

Default is Active L OW. Polarity is controlled thro ugh EEPROM.

LOW. Polarity is controlled through EEPROM.

is controlled th rough EEPROM.

Default is Active L OW. Polarity is controlled thro ugh EEPROM.

LOW. Polarity is controlled through EEPROM.

is controlled th rough EEPROM.

Document #: 38-08037 Rev. *D Page 9 of 23

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CY7C656x

8.0 Default Descriptors

8.1 Device Descriptor

The standard devi ce descript or for CY7C656x x is based on the VID, PID, and DID found in the SPI EEPROM. This VID/PID/DID in the EEPROM will overwr ite the def au l t V ID/PID/D ID . If no EEPROM is used, the CY7C656xx will enumer ate w ith t h e d e fa u lt descriptor values as shown below.

Byte Full Speed High Speed Field Name Description

0 0x12 0x12 bLength 18 Bytes 1 0x01 0x01 bDescriptorType DEVICE_DESCRIPTOR

2,3 0x0110 0x 0200 bcdUSB USB specif ic ati on 2.0 in HS (1.1 if forced FS)

4 0x09 0x09 bDeviceClass HUB 5 0x00 0x00 bDeviceSubClass None 6 0x00 0x01

[4]

7 0x40 0x40 bMaxPacketSize0 64 bytes

8,9 0x04B4 0xx04B4 wIdV endor VID (overwritten by what is defined in EEPROM)

10,11 0x6560 0x6560 wIdProduct PID (overwritten by what is defined in EEPROM)

12, 13 0x0910

0x0810

0x0910

0x0810 14 0x00 0x00 iManufacturer No ma nufacturer stri ng supported 15 0x00 0x00 iProduct No product string supported 16 0x00 0x00 iSerialNumber No serial string supported 17 0x01 0x01 bNumConfigurations One configuration supported

8.2 Configuration Descriptor

Byte Full Speed High Speed Field Name Description

0 0x09 0x09 bLength 9 Bytes 10x02

[7]

2 0x0019

0x0029

/ 0x07

[8]

0x02

[7]

0x0019

0x0029 4 0x01 0x01 bNumInterfaces 1 5 0x01 0x01 bConfigurationValue The configuration to be used 6 0x00 0x00 iConfiguration 70xA0

0xE0

0xA0 0xE0

80x280x57

8.3 Interface Descriptor

Byte Full Speed High Speed Field Name Description

0 0x09 0x09 bLength 9 Bytes 1 0x04 0x04 bDescriptorType I NTERFACE_DESCRIPTOR 2 0x00 0x00 bInterfaceNumber 3 0x00 0x00 bAlternateSetting 4 0x01 0x01 bNumEndpoints 5 0x09 0x09 bInterfaceClass 6 0x00 0x00 bInterfaceSubClass 70x00

[4]

8 0x00 0x00 iInterface

Notes:

4. If configured as single-TT hub.

5. If configured as multi-TT hub and other speed.

6. This value is configured through the External EEPROM.

7. Configured speed descriptor

8. Other speed descriptor

/ 0x01

[5]

0x00

[4]

/ 0x02

/ 0x07

[4] [5]

[6]

/ 0x01

[5]

bDeviceProtocol None

wbcdDevice DID (overwritten by what is defined in EEPROM)

[8]

bDescriptorType CONFIG_DESCRIPTOR wTotalLength Length of all other descriptors

bmAttributes Value depends on pin 45 - SELFPWR signal

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

bMaxPower

[5]

bInterfaceProtocol

Document #: 38-08037 Rev. *D Page 10 of 23

PRELIMINARY

8.4 Endpoint Descriptor

Byte Full Speed High Speed Field Name Description

0 0x07 0x07 bLength 7 Bytes 1 0x05 0x05 bDescriptorTy pe ENDPOI NT_DESCRIPTOR 2 0x81 0x81 bEndpointAddress IN Endpoint #1 3 0x03 0x03 bmAttributes Interrupt

4,5 0x0001 0x0001 wMaxPacketSize Maximum Packet Size

6 0xFF 0x0C bIn te r va l Pollin g Ra te

CY7C656x

8.5 Interface Descriptor

Byte Full Speed High Speed Field Name Description

0 N/A 0x09 bLength 9 Bytes 1 N/A 0x04 bDescriptorType INTERFACE_DESCRIPTOR 2 N/A 0x00 bInterfaceNumber Interface Descriptor Index 3 N/A 0x01 bAlternateSetting Al ternate Setting for the Interface 4 N/A 0x01 bNumEndpoints Number of Endpoints Defined 5 N/A 0x09 bInterfaceClass Interface Class 6 N/A 0x00 bInterfaceSubClass Interf ace Sub-Class 7 N/A 0x02 bInterfaceProtocol Interface Protocol 8 N/A 0x00 bInterface Interface String Index

8.6 Endpoint Descriptor

Byte Full Speed High Speed Field Name Description

0 N/A 0x07 bLength 7 Bytes 1 N/A 0x05 bDescriptorType ENDPOINT_DESCRIPTOR 2 N/A 0x81 bEndpointAddress IN Endpoint #1 3 N/A 0x03 bmAttributes Interrupt

4,5 N/A 0x0001 wMaxPacketSize Maxi mu m Pack et Si ze

6 N/A 0x0C bInterval Polling Rate

[9,10]

8.7 Device Qualifier Descriptor

Byte Full Speed High Speed Field Name Description

0 0x0A 0x0A bLength 10 Bytes 1 0x06 0x06 bDescriptorType DEVICE_QUALIFIER

2,3 0x0200 0x0200 bcdUSB

4 0x09 0x09 bDeviceClass 5 0x00 0x00 bDeviceSubClass 60x01

7 0x40 0x40 bMaxPacketSize0 8 0x01 0x01 bNumConfigurations 9 0x00 0x00 bReserved

Note:

9. If CY7C65640B is configured for singled-TT only or CY7C65630 or CY7C65620 (from the external EEPROM), this descriptor is not present.

10. If connected at high-speed

Document #: 38-08037 Rev. *D Page 1 1 of 23

0x02

[4] [5]

0x00 bDeviceProtocol

PRELIMINARY

8.8 Hub Descriptor

Byte All Speed Field Name Description

0 0x09 bLength 9 Bytes 1 0x29 b D escriptorType HUB Descriptor

0x02

0xAE

[11]

bNbrPorts Number of ports supported, CY7C65640B or CY7C65630.

Number of ports supported, CY7C65620.

[11]

wHubCharacteristics b1, b0: Logical Power Swi tching Mode

00: Ganged power switc hing (all ports’ power at once) 01: Individual port power switching (Def ault 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: Over-current Protection Mode

00: Global Overcurrent Protection. The hub reports over current 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 ov er- curre nt st atus ( Default in CY7C656 xx) . 1X: No Overcurrent Prot ection. This option is al lowed only for bus-powere d hubs that do not implem ent overcurrent prot ection.

b6, b5: TT Think Time

00: TT requires at most 8 FS bit ti me s of i nter transaction gap on a full-/low-speed downstream bus (Default in CY7C656xx).

b7: Port Indicators Supported,

0: Port Indicators are not supported on i ts downstream facing ports and the PORT_INDICATOR request has no effect.

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

PORT_INDICATOR request controls the indicators. See Section 5.0 and 10.0 (Default in CY7C656xx).

b15,. b8: Reserved

[11]

bPwrOn2PwrGood Time from when the port is powered to when the power is good on that port

[11]

bHubContrCurrent Maximum current requirement for the Hub Controll er at full-speed.

[11]

bDeviceRemov able Indicates if the port has a removabl e device attached

[11]

bPortPwrCtrlMask Required for compatibility with software written f or 1. 0 com pliant devices

Maximum current requirement for the Hub Controller at high-speed.

20x04

3,4 0x0089

50x32 60x28

70x00 80xFF

Note:

11. This value is configured through the External EEPROM.

CY7C656x

9.0 Configuration Options

Systems using CY7C656xx that do not have the fuse ROM pre-set at the fact ory mus t have an ext ernal EEPROM in or der for the device to have a unique VID, PID, and DID. The CY7C656xx can communicate with SPI EEPROM that are either double byte addressed or a single byte with the 9th bit within the inst ruction byte, such as the 24LC040 parts use. The 25LC080 EEPROM uses t he double byte addr ess format , and therefore the CY7C656xx can communicate with these parts. The '010s and '020s uses the s am e command for m at as used to interface wi th the ‘ 040 and hen ce th ese ca n also be us ed to interface with the CY7C656xx.

Document #: 38-08037 Rev. *D Page 12 of 23

9.1 Default – 0xD0 Load

When used in default mode, 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:

Byte Value

00xD0 1 VID (LSB) 2 VID (MSB) 3 PID (LSB) 4 PID (MSB) 5 reversed 6 DID (MSB)

PRELIMINARY

CY7C656x

9.2 Configured – 0xD2 Load

Byte Value (MSB->LSB)

00xD2 1 VID (LSB) 2 VID (MSB) 3 PID (LSB) 4 PID (MSB) 5reversed 6 DID (MSB) 7 EnableOverCurrent Timer[3: 0], DisableOvercurrent-

Timer[3:0] 8 ActivePorts[3:0], RemovablePorts[3:0] 9MaxPower

10 HubControllerPower

11 PowerOnTimer

12 IllegalHubDescriptor, CompoundDevice,

FullspeedOnly, NoPortIndicators, Reserved,

GangPowered, SingleTTOnly, Reserved

Byte 0: 0xD2

Needs to be programmed with 0x D2

Byte 1: VID (LSB)

Least Significant Byte of Vendor ID

Byte 2: VID (MSB)

Most Significant Byte of V endor ID

Byte 3: PID (LSB)

Least Significant Byte of Product ID

Byte 4: PID (MSB)]

Most Significant Byte of Product ID

Byte 5: Reserved

Reserved.

Byte 6: DID (MSB)]

Most Significant Byte of Device ID

Byte 7: EnableOvercurrentTimer[3:0], DisabledOvercurrentTimer[3:0]

Count time in ms f or filteri ng overcurr ent detect ion. Bits 7– 4 are for an enable d port, and bit s 3–0 are for a disabl ed port. Both range from 0 ms to 15 ms. See section 5.8. Default: 8 ms = 0x88.

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

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 por ts 1 and 4 would se t this fi eld to 0x09 . The tot al 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 port is r emovable ( set t o hi gh). T his bi t val ues a re reco rded appropriat ely in the HubDescr iptor: DeviceRemovabl e field. Default: 0xFF.

Byte 9: MaximumPower

This value i s reported in the Confi gurationDes criptor:bMax Power field and is the current in 2-mA intervals 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 value is re ported in t he HubDescri ptor:bHub Contr Current field and is th e curr ent in milliamper es required by the hub controller. Default: 0x28 = 80 mA for full-speed and 0x57 = 174 mA for high-speed.

Byte 11: 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 corresponding downstream port is good. Default: 0x32 = 100 ms.

Byte 12: IllegalHubDescriptor, CompoundDevice, FullspeedOnly, NoPortIndicators, Reserved, GangPowered, SingleTTOnly

Bit 7: Illeg alHubDescriptor: For GetHubDesc riptor request, some USB hosts use a DescriptorTypeof 0x00 instead of HUB_DESCRIPTOR, 0x29. According to the USB 2.0 st andard, a hub must treat thi s 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 CY7C656xx to accept a DescriptorType of 0x00 for this command. Default is 1.

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 t he hub to be a full -speed only device. Default set to 0.

Bit 4: NoPortIndicators: Turns off the port indicators and does not report them as present in the HubDescriptor, wHubCharacteristi cs b7 fi eld. Default set to 0.

Bit 3: Reserved. Should be set 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 set to 0.

Bit 1: SingleTT Only: Indi cates that the hub shoul d only support single T ransact ion Tran slator mode. This changes var ious descriptor values. Default set to 0.

Bit 0: Reserved. Default set to 0.

9.3 Configured – 0xD4 Load

Byte Value (MSB-> L S B )

00xD4 1 VID (LSB) 2 VID (MSB) 3 PID (LSB) 4 PID (MSB) 5 reserved 6 DID (MSB)

Document #: 38-08037 Rev. *D Page 13 of 23

PRELIMINARY

CY7C656x

Byte Value (MSB->LSB)

7 EnableOverCurr entTimer[3:0], DisableOvercur-

rentTimer[3:0] 8 MaxPower (Full-speed) 9 MaxPower (High-spee d)

10 Reserved 11 Reserved 12 HubControllerPower Full-Speed 13 HubControllerPower High -Speed 14 Reserved 15 Reserved 16 PowerOnTimer 17 IllegalHubDescriptor, CompoundDevice,

FullspeedOnly, NoPortIndicators, Rese rved,

GangPowered, Singl eTTOnly, Reserved

18 AmberPolarity , GreenPolar ity, Modul ateIndicators,

PowerControlPolarity, OverCurrentPolarity,

OverCurrentMode1, OverCurrentMode2

19 Write Protect 20 NumLangs 21 SupportedStrings 22 ActivePorts[3:0] 23 RemovablePorts[3:0] 24 LangID

iManufacturer

=24+2N

iProduct

=a+2N

iSerialNumber

=b+2N

iConfiguration(FS)

=c+2N

iConfiguration(HS)

=d+2N

iInterface(0)

=e+2N

iInterface(1)

=f+2N

h=g+2N Strings

N:NumLangs

Byte 0: 0xD3

Needs to be programmed with 0xD3

Byte 1: VID (LSB)

Least Significant Byte of Vendor ID

Byte 2: VID (MSB)

Most Significant Byte of V endor ID

Byte 3: PID (LSB)

Least Significant Byte of Product ID

Byte 4: PID (MSB)]

Most Significant Byt e of Product ID

Byte 5: Reserved

Reserved.

Byte 6: DID (MSB)]

Most Significant Byte of Device ID

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

rentTimer[3:0]

Count time in ms fo r filtering o vercurrent detection. Bits 7–4 are for an enabled port, and bits 3–0 are for a disabled por t. Both range from 0 ms to 15 ms. See section 5.8. Default: 8 ms = 0x88.

Byte 8: MaximumPower (Full-Speed)

This value i s reported in the Confi gurationDes criptor:bMax Power field and is the current in 2-mA intervals that is required from the upstream hub when connected at fullspeed. Default: 0x28 = 160 mA for f ull -speed.

Byte 9: MaximumPower (High-Speed)

This value i s reported in the Confi gurationDes criptor:bMax Power field and is the current in 2-mA intervals that is required from the upstream hub when connected at highspeed. Default: 0x57 = 348 mA for hi gh-speed.

Byte 10: Reserved

Zeros should be written t o thi s location.

Byte 11: Reserved

Zeros should be written t o thi s location.

Byte 12: HubControllerPower (Full-Speed)

This value is re ported in t he HubDescri ptor:bHub Contr Current field and is th e curr ent in milliamper es required by the hub controller when connected on the upstream hub as a full-speed. Default: 0x50 = 80 mA for full-speed.

Byte 13: HubControllerPower (High- speed)

This value is re ported in t he HubDescri ptor:bHub Contr Current field and is th e curr ent in milliamper es required by the hub controller when connected on the upstream hub as a high-speed. Default: 0xAE = 174 mA for high-speed.

Byte 14: Reserved

Zeros should be written t o thi s location.

Byte 15: Reserved

Zeros should be written t o thi s location.

Byte 16: PowerOnTimer

Byte 17: IllegalHubDescriptor, CompoundDevice, FullspeedOnly, NoPortIndicators, Reserved, GangPowered, SingleTTOnly

Document #: 38-08037 Rev. *D Page 14 of 23

PRELIMINARY

CY7C656x

tems that do not accept this, the IllegalHubDescriptor configuration bit may be set to allow CY7C656xx to accept a DescriptorType of 0x00 for this comm and. Def ault is 0 , recommended setting is 1.

Bit 6: CompoundDevice: Indicates whether the hub is part of a compound de vice. This is reported in the HubDes criptor, wHub-Characteristics: b2. Default set to 0.

Bit 5: Fullspeed: Only configures the hub to be a full-speed only device. Defaul t set to 0.

Bit 4: NoPortIndicators: Turns off the port indicators and does not report them as present in the HubDescriptor, wHubCharacteristics b7 field. Default set to 0.

Bit 3: Reserved. Should be set 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 set to 0.

Bit 1: SingleTT Only: Ind icates tha t the hub should on ly support single Transact ion Tr anslator mode. This cha nges various descriptor values. Default set to 0.

Bit 0: Reserved. Default set to 0.

Byte 18: AmberPolarity, GreenPolarity, SelfPowerable, ModulateIndicators, PowerControlPolarity, OverCurrentPolarity, OverCurrentMode1, OverCurrentMode2

Bit 7: AmberPolarity—Indicates the polarity of the amber indicator control.

Bit 6: Gree nPolarity—Indicates the polarity of the green indicator control.

Bit 5: Self Powerable—Indi cates whet her the hub is capa ble of operati ng in self- powered mode. If ‘ 0’, the hu b is c apa ble of bus-powered oper ation only.

Bit 4: Modul ateIndicato rs—If thi s bit i s set, the i ndicator outputs will be modulated by a square wave of programmable frequency , for power savings. If ‘0’, the out puts will be sta tic.

Bit 3: PowerControlPolarity—If set, the power control outputs will be active HIGH. If not set, the power control outputs will be active LOW.

Bit 2: OverCurrentPolarity—If set, the over-current inputs will be active HIGH. If not set, the over-current inputs will be 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.

Bit 0: OverCurrentMode2—Reported as bit 3 of the wHubCharacteristi cs field of the hub descrip tor. 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’, t he hub report s over-current as the summation of all ports’ current draw.

Byt e 1 9: Writ e P rotect

Byte 20: NumLangs

Number of supported string languages. CHC supports a maximum of 31 lan guages; if this f ield is set to 0 or a number larger than 31, all string support will be disabled.

Byte 21: SupportedStrings

This field cont ains a bi tmap of st rings supp orted by t he 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 will return a non-zero index for each string which is supported, and will return 0x00 for each string not supported, as indicat ed by this fiel d. The bit s in this f ield cor respond to the following standard strings.

Bit Name Description 7 reserved 6 iInterface (1) The iInterface string index reported in

the second interface descriptor (alternate setting 1).

5 iInterface (0) The iInterface string index reported in

the first interface descriptor (alternate setting 0).

4 iConfiguration (high-speed) The iConfiguration string

index reported in the configuration descriptor, when operating at highspeed.

3 iConfiguration (full-speed) The iConfiguration string

index reported in the configuration descriptor, when operating at fullspeed.

2 iSerialNumber The iSerialNumber string index

reported in the device descriptor.

1 iProduct The iProduct string index reported in

the device descriptor.

0 iManufacturer The iManufacturer string index

reported in the device descriptor.

Document #: 38-08037 Rev. *D Page 15 of 23

PRELIMINARY

CY7C656x

Byte 22: ActivePorts[3:0]

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 por ts 1 and 4 would se t this fi eld to 0x09 . The tot al number of ports reported in the Hub Descriptor: bNbrPorts field is calcul ated from this.

Byte 23: RemovablePorts[3:0]

Bits 3–0 are the RemovablePorts[3:0] bits that indicates whether the corresponding port is removable (set to high). This bit values are recorded appropriately in the HubDescriptor:DeviceRemovable field. Default: 0xFF.

Byte 24: LangID

Array of LangID code s support ed by the hub. Eac h LangID consists o f two byt es, st ored LSB first. The arra y has NumLangs entries ( 2 * NumLa ngs bytes).

Byte a: iManufacturer

Array of addresses for the iManufacturer strings. Each address is two bytes long, stored LSB first. The array has NumLangs entries (2 * NumLangs byt es). (The star ting 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 * NumLa ngs bytes). The address b = a + 2*NunLangs.

Byte c: iSerialNumber

Array of addresses for the iSerialNum ber strin gs. Each address is two bytes long, stored LSB first. The array has NumLangs entries (2 * NumLangs bytes). The address c = b + 2 * NumLangs.

Byte d: iConfiguration(Full-Speed)

Array of addresses for the iConfiguration (full-speed) strings. Each address is two bytes long, stored LSB first. The array has NumLangs entri es (2 * NumLangs bytes). The address d = c + 2*NumLangs.

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 entri es (2 * NumLangs bytes). The address e = d + 2 * NumLangs.

Byte f: iInterface(0)

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)

Array of addresses for the iInterface(1) strings. Each address is two bytes long, stored LSB first. The array has NumLangs entries (2 * NumLangs bytes). The address g = f + 2 * NumLangs.

Byte h: Strings

String s addresse d by the string point ers. S trings must comply with the USB specification. The first byte must be the length of t he string in bytes, the second must be 0x03, and the string must be in Unicode.

10.0 Supported USB Requests

10.1 Device Class Commands

T able 10-1. Device Class Request s

Request bmRequestType bRequest wValue wIndex wLength Data

GetDev iceStatus 10000000B 0x00 0x0000 0x0000 0x0002 2 Byte Devi ce Status GetInterfaceStatus 10000001B 0x00 0x0000 0x0000 0x0002 2 Byte Endpoint

GetEndpointStatus 10000010B 0x00 0x0000 0x0000 0x0002 2 Byte Endpoint

GetDev iceDescriptor 100000 00B 0x06 0x0001 Zero or

GetConfigDescriptor 10000000 B 0x06 0x0002 Zero or

GetDeviceQualifierDescriptor

GetOtherSpeedConfigurationDescriptor

GetConfiguration SetCongfiguration

GetInterface 10000001B 0xA 0x0000 0x0000 0x0001 Interface Num ber

Note:

12. Only one configuration is supported in CY7C656xx.

[12]

100000 00B 0x06 0x0006 Zero or

100000 00B 0x06 0x0007 Zero or

10000000B 0x08 0x0000 0x0000 0x0001 Configuration value 00000000B 0x09 Configuration

Value

Language ID

0x0000 0x0000 None

Descriptor Length

Status

Status Descriptor

Descriptor

Document #: 38-08037 Rev. *D Page 16 of 23

PRELIMINARY

CY7C656x

T able 10-1. Device Class Request s (continued)

Request bmRequestType bRequest wValue wIndex wLength Data

SetInterface 00000001B 0x0B Alternate

Setting

Interface Number

0x0000 None

SetAdd ress 00000000B 0x05 Device Address 0x0000 0x0000 None SetDeviceRemoteWakeup 00000000B 0x03 0x01 0x0000 0x0000 None SetDeviceTest_J 00000000B 0x03 0x02 0x0100 0x0000 None SetDeviceTest_K 00000000B 0x03 0x02 0x0200 0x0000 None SetDeviceTest_SE0_NAK 00000000B 0x03 0x02 0x0300 0x0000 None SetDeviceTest_Packet 00000000B 0x03 0x02 0x0400 0x0000 None SetEndpointHalt 00000000B 0x03 0x00 0x0000 0x0000 None ClearDeviceRe-

00000000B 0x01 0x01 0x0000 0x0000 None

moteWakeup ClearEndpointHalt 00000000B 0x01 0x00 0x0000 0x0000 None

10.2 Hub Class Commands

T able 10-2. Hub Class Requests

Request bmRequestType bRequest wValue wIndex wLength Data

GetHubS tatus 10100000B 0x00 0x0000 0x000 0 0x0004 Hub S tatus (See T abl e 11-19

GetPortStatus 10100011B 0x00 0x0000 Byte 0: 0x00

0x0004 Port Status (Se e T able 11- 21

Byte 1: Port

ClearHubFeature 00100000B 0x01 Feature

Selectors

ClearPortFeature 00100011B 0x01 Feature

Selectors

[13]

0 or 1

0x0000 0x0000 None

Byte 0: 0x00

0x0000 None

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

ClearPortFeature 00100011B 0x01 Feature Selectors

22 (PORT_INDICATOR)

[13]

Byte 0:

Selectors

0, 1, 2, or 3

0x0000 None

[14]

Byte 1: Port

SetHubFeature 00100000B 0x03 Feature

Selector

[13]

0x0000 0x0000 0 or 1

SetPortFeature 00100011B 0x03 Feature

Selectors

[13]

Port 0x0000 None 2, 4 or 8

SetPortFeature 00100011B 0x03 Feature

Selector (PORT_TEST)

[13]

Byte 0:

Selectors

1,2, 3, 4 or 5

0x0000 None

[15]

Byte 1: Port

SetPortFeature 00100011B 0x03 Feature

Selector (PORT_INDICATOR)

[13]

Byte 0:

Selectors

0, 1, 2, or 3

0x0000 None

[14]

Byte 1: Port

GetHubDescriptor 10100000B 0x06 Descri ptor Type and

Descriptor Index

Hub Descriptor Length

Notes:

13. Feature selector values for different feature is presented in Table 10-3.

14. Selector values for different feature is presented in Table 10-5.

of S pec) Change Status (See Table 11-20 of Spec)

Document #: 38-08037 Rev. *D Page 17 of 23

PRELIMINARY

T able 10-2. Hub Class Requests (continued)

Request bmRequestType bRequest wValue wIndex wLength Data

ClearTTBuffer 00100011B 0x08 Dev_Addr, EP_Num TT_Port 0x0000 None ResetTT 00100000B 0x09 0x0000 Byte 0: 0x00

Byte 1: Port

GetTTState 10100011B 0X0A TT_Flags Byte 0: 0x00

Byte 1: Port

StopTT 00100011B 0x0B 0x0000 Byte 0: 0x00

Byte 1: Port

Vendo r Commands

Read EEPROM 11000000B 0x02 0x00 0x00 Length Data This request resu lts in Length bytes of Dat a being r ead from the ext ernal memory devi ce, and ret urned to the host . Data is read

beginning with addr ess 0. This reque st wi ll fai l if there is no e xte rnal memor y device pres ent. This r eque st is on ly val id if the hub is in the Configured state; the request will fail otherwise.

Write EEPROM 01000000B 0x01 0x00 0x00 Length Data This request resul ts in Length byt es of Data bei ng written t o the exte rnal memory device. Dat a is writt en beginni ng with address

0. This request will fail if there is no external memory device present. This request is only valid if the hub is in the Configured state; the request will fail otherwise.

0x0000 None

TT State Length

0x0000 None

TT State

CY7C656x

T able 10-3. Hub Class Feature Selector

Feature Selector Recipient Value

C_HUB_LOCAL_POWER Hub 0 C_HUB_OVER_CURRENT Hub 1 PORT_CONNECTION Port 0 PORT_ENABLE Port 1 PORT_SUSPEND Port 2 PORT_RESET Port 4 PORT_POWER Port 8 PORT_LOW_SPEED Port 9 C_PORT_CONNECTION Port 16 C_PORT_ENABLE Port 17 C_PORT_SUSPEND Port 18 C_PORT_OVER_CURRENT Port 19 C_PORT_RESET Port 20 PORT_TEST Port 21 PORT_INDICATOR Port 22

T able 10-5. Port Indicator Selector for Feature Selector PORT_INDICA TOR (0x22)

Port Indicator Color Selector Value Port Indicator Mode

Color Set Automatically as shown in Table 5-1 0 Automatic Mode Amber 1 Manual Mode Green 2 Manual Mode Off 3 Manual Mode

Note:

15. Selector values for different features are presented in Table 10-4.

Table 10-4. Test Mode Selector for Feature Selector PORT_TEST (0x21)

PORT_TEST Mode Description Selector Value

Test_J 1 Test_K 2 Te st_SE0_NAK 3 Test_Packet 4 Test_Force_Enable 5

[15]

Document #: 38-08037 Rev. *D Page 18 of 23

PRELIMINARY

CY7C656x

11.0

Upstream USB Connection

The following is a schemat ic of the USB upstream connector.

VCC

D–

D+

GND

SHELL

D–

D+

4.7 nF 250V

1 MΩ

Figure 11-1. USB Upstream Port Connection

12.0

Downstream USB Connections

The following is a schematic of the USB downstream connector.

PWRx

150 µF

10V

0.01 µF

DD–[X]

2.2 µF 10V

BUSPOWER

100 kΩ

VCC

D–

Figure 12-1. USB Downstream Port Connec ti on

13.0

LED Connections

The following is a schematic of the LED circuitr y.

GREEN#[x]

AMBER#[x]

Figure 13-1. USB Downstream Port Connec ti on

680Ω

DD+[X]

D+

GND

SHELL

3.3V

Document #: 38-08037 Rev. *D Page 19 of 23

14.0 System Block Di ag ram

PWR3

VCC

D–

D+

GND

SHELL

BUSPOWER

D–

D+

4.7 nF 250V

1 MΩ

2.2 µF 10V

100 kΩ

PRELIMINARY

PWR1

OVR1

OVR2

OVR3

OVR4

Power

Management

PWR2

PWR3

PWR4

PWR3

PWR2

PWR1

150 µF 10V

GREEN#[1]

AMBER#[1]

0.01 µF

680Ω

CY7C656x

DD–[1] DD+[1]

VCC D– D+

GND

SHELL

3.3V

BUSPOWER

3.3V

100K

0.1µF

D– D+

DD–[1] DD+[1]

DD–[2] DD+[2]

DD–[3] DD+[3]

DD–[4] DD+[4]

VCC1

VCC2

VCC3

VCC4

BUSPOWER

RESET DD+

DD-[1] DD+[1]

DD-[2] DD+[2]

DD-[3] DD+[3]

DD-[4] DD+[4]

SPI_SD

SPI_SCK

SPI_CS

24 MHz

12 pF

SPI

EEPROM

12 pF

SPI_SD

PWR2

150 µF 10V

GREEN#[2]

AMBER#[2]

680Ω

0.01 µF

DD–[2] DD+[2]

VCC

D– D+

GND SHELL

3.3V

XIN

VCC5

VCC6

VCC7

VCC8

VCC9

VCC10

VCC11

HX2LP

XOUT

GREEN[1] AMBER[1]

GREEN[2] AMBER[2]

GREEN[3] AMBER[3]

GREEN[4] AMBER[4]

PWR1

PWR2

PWR3

PWR4

SPI_CS

SPI_SCK

SPI_SD

OVR1

OVR2

OVR3

OVR4

GREEN[1] AMBER[1]

GREEN[2] AMBER[2]

GREEN[3] AMBER[3]

GREEN[4] AMBER[4]

PWR1 OVR1

PWR2 OVR2

PWR3 OVR3

PWR4 OVR4

SPI_CS SPI_SCK

SPI_SD

150 µF 10V

GREEN#[3]

AMBER#[3]

PWR4

150 µF 10V

GREEN#[4]

680Ω

0.01 µF

DD-[3] DD+[3]

DD-[4] DD+[4]

VCC D– D+

GND

SHELL

3.3 V

VCC D– D+

GND

SHELL

3.3 V

GND1

GND2

GND3

GND4

GND5

GND6

GND7

GND8

GND9

GND10

GND11

GND12

AMBER#[4]

680Ω

Figure 14-1. Sample Schematic

Document #: 38-08037 Rev. *D Page 20 of 23

15.0 Electrical Characteristics

PRELIMINARY

CY7C656x

15.1 Absolute Maximum Ratings

St orage Temperature ................... .............–65°C to +150 °C

Ambient Temperature with Power Applied........0°C to +70°C

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

DC Voltage Applied to Output s in High Z State

...............................................................–0.5V to V

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

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

+ 0.5V

15.2 Oper ating Conditions

TA (Ambient Temperature Under Bias)........... ..0°C to +70°C

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

Grou nd Voltage ........... .. .......... .......... .......... ......... .......... ... 0V

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

parallel re s o na n t,

fundamental mode,

12-pF load capacitance,

0.5 mW

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

15.3 DC Electrical Characteristics

Parameter Description Conditions Min. Typ. Max. Unit

RampUp Ramp rate on V

SUSP

Supp ly Voltage 3.15 3.3 3. 4 5 V

18 V/ms Input High Voltage 2 5.25 V Input Low Voltage –0.5 0.8 V Input Leakage Current 0 < V Output Voltage High I Outp u t Lo w Vol tage I

< V

= 4 mA 2.4 V

OUT

= –4 mA 0.4 V

OUT

±10 µA

Output Current High 4mA Output Current Low 4mA Input Pin Capacitance 10 pF Suspend Current TBD µA

Supply Current

4 Active port s Full-speed Host, Full-speed Devices 53 mA

High-speed Host, High- speed Devices 174 mA High-speed Host, Full -speed Devices 77 mA

2 Active Port s Full-speed Host, Ful l- speed Devices 50 mA

High-speed Host, High- speed Devices 123 mA High-speed Host, Full -speed Devices 75 mA

No Active Ports Full-speed Host 48 mA

High-speed Host 72 mA

15.4 USB Transceiver

USB 2.0-Compliant in fu ll -, low-, and high-speed modes.

15.5 AC Electrical Characteristics

Both the upstream USB transceiver and all four downstream transceivers hav e pass ed the USB-I F USB 2.0 Electr ical Certi fication Testing.

15.5.1 Serial Peripheral Interface

Parameter Description Conditions Min. Typ. Max. Unit

Clock Rise/Fall Time 500 ns Clock Frequency 250 KHz Data Set-up Time 50 ns Hold Time 100 ns Reset Period 1.9 ms

Document #: 38-08037 Rev. *D Page 21 of 23

PRELIMINARY

CY7C656x

16.0 Ordering Information

Ordering Code Package Type

CY7C65640B-56LFXC 56-pin QFN Mult-TT CY7C65630-56LFXC 56-pin QFN Single-TT CY7C65620-56LFXC 56-pin QFN 2-Port Single-TT CY46XX CY7C656xx USB 2.0 4 port Hub Reference Desi gn Kit

17.0 Package Diagrams

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

56-Lead QFN 8 x 8 MM LF56A

0.80[0.031]

TOP VIEW

DIA.

7.90[0.311]

8.10[0.319]

7.70[0.303]

7.80[0.307]

1.00[0.039] MAX.

0.80[0.031] MAX.

SIDE VIEW

0.08[0.003]

0.05[0.002] MAX.

0.20[0.008] REF.

BOTTOM VIEW

0.18[0.007]

0.28[0.011]

PIN1 ID

0.20[0.008] R.

0.45[0.018]

E-PAD

(PAD SIZE VARY BY DEVICE TYPE)

6.45[0.254]

6.55[0.258]

0.50[0.020]

0.24[0.009]

0.60[0.024]

6.55[0.258]

6.45[0.254]

(4X)

51-85144-*D

Dimensions in mm E-Pad size 6.0 x 6.0 mm typ

7.80[0.307]

7.70[0.303]

8.10[0.319]

7.90[0.311]

0°-12°

0.30[0.012]

0.50[0.020]

SEATING PLANE

Windows is a regist ered t r ademark of Mi crosof t Co rporat ion. TetraHub and EZ-USB HX2LP ar e trad emarks of Cy press Se micon ductor Corporation. All product and company names mentioned in this document are trademarks of their respective holders.

Document #: 38-08037 Rev. *D Page 22 of 23

© Cypress Semiconductor Corporation, 2005. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress

PRELIMINARY

CY7C656x

Document History Page

Document Title: CY7C656xx EZ-USB HX2LP™ Low-Power USB 2.0 Hub Controller Family Document Number: 38-08037

REV. ECN NO. Issue Date

** 131505 02/12/2004 JTC New Data Sheet

*A 231329 See ECN KKU Changed load capaci tors to 12 pF, updated part numbers, added functional

*B 250869 See ECN ARI Added typical values for Icc in Table 15.3, changed MPN CY7C65650 to

*C 330195 See ECN KKU Added Reset period in table 15.5.1

*D 342997 See ECN KKU Updated features list.

Orig. of Change Description of Change

overviews, block descriptions, pin configurati ons, default descriptor s, configurations options, supported USB requests, electrical char acteristics and package dia gram

CY7C65640B, added CY7C65620 package

Added 0xD4 EEPROM Load Added vendor command values Added V Updated block diagram

Removed from section 5. 2 “Once the hub is conf igured, the full hub function-

ality is available.” Added reference to 0xD4 load to section 5.4 Added reference to polarity control in sections 5.6 and 5.7 Updated table 5-1 to match USB-IF spec changes. Added LED modulation to sec ti on 5.8 Updated pin des cription t able - SELFPWR# to SEL FPWR and remove d refer-

ences to limitations of bus powered. Added reference to polarity control

on PWR#, OVR# and LED control lines. Updated Default descri ptors Updated EEPROM list to include 25LC080 Removed NoEOPatEOF1 bit. Added LED polarity control

ramp rate

Document #: 38-08037 Rev. *D Page 23 of 23

Cypress CY7C656xx, EZ-USB HX2LP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.0 Features

2.0 Introduction

3.0 Block Diagrams

3.1 USB Serial Interface Engine (SIE)

3.2 Hub Repeater

3.3 Transaction T r anslator (TT)

4.0 Applications

5.0 Functional Overview

5.1 System Initialization

5.2 Enume ration

5.3 Multiple Transaction Translator Support

5.4 Down stream P orts

5.5 Upstream Port

5.6 Power Switching

5.7 Over-current Detection

5.8 Port I ndicators

6.0 Pin Configuration

7.0 Pin Description Table

8.0 Default Descriptors

8.1 Device Descriptor

8.2 Configuration Descriptor

8.3 Interface Descriptor

8.4 Endpoint Descriptor

8.7 Device Qualifier Descriptor

8.8 Hub Descriptor

9.0 Configuration Options

10.0 Supported USB Requests

10.1 Device Class Commands

10.2 Hub Class Commands

Upstream USB Connection

Downstream USB Connections

LED Connections

14.0 System Block Di ag ram

15.0 Electrical Characteristics

15.1 Absolute Maximum Ratings

15.2 Oper ating Conditions

15.3 DC Electrical Characteristics

15.4 USB Transceiver

15.5 AC Electrical Characteristics

15.5.1 Serial Peripheral Interface

16.0 Ordering Information

17.0 Package Diagrams