CY4605 Cypress Semiconductor Corp, CY4605 Datasheet - Page 9

• Manufacturer Part Number: CY4605
• Description: KIT EZ-USB HX2LP 2PORT HUB
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB HX2LP™r

Specifications of CY4605

• Main Purpose: Interface, USB 2.0 Hub
• Utilized Ic / Part: CY7C65620
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Not Compliant

Default Descriptors
This section presents the different descriptors that are available. The following tables lists the functionality of each descriptor.
Device Descriptor
The standard device descriptor for CY7C656xx is based on the information found in the SPI EEPROM. The information in the
EEPROM overrides the default descriptor values. If no EEPROM is used, the CY7C656xx enumerates with the default descriptor
values as shown in the following table. If a blank EEPROM is connected, the hub enumerates as vendor defined class instead of a
hub class. This is for the purpose of programming the EEPROM with the Cypress driver.
Configuration Descriptor
Document Number: 38-08037 Rev. *L
Notes
4. Configured speed descriptor.
5. Other speed descriptor.
12, 13
10,11
Byte
Byte
2,3
8,9
14
15
16
17
0
1
4
5
6
7
0
1
2
4
5
6
7
8
0x02
Full Speed
Full Speed
0x04B4
0x6560
0x0915
0x0019
0x0110
0xA0
0xE0
0x12
0x01
0x09
0x00
0x00
0x40
0x00
0x00
0x00
0x01
0x09
0x01
0x01
0x00
0x28
[4]
/0x07
[5]
0x02
High Speed
High Speed
0x04B4
0x0200
0x6560
0x0915
0x0019
0x57
0x12
0x01
0x09
0x00
0x01
0x40
0x00
0x00
0x00
0x01
0xA0
0xE0
0x09
[4]
0x01
0x01
0x00
/0x07
[4]
[5]
bLength
bDescriptorType
bcdUSB
bDeviceClass
bDeviceSubClass
bDeviceProtocol
bMaxPacketSize0
wIdVendor
wIdProduct
wbcdDevice
iManufacturer
iProduct
iSerialNumber
bNumConfigurations
bLength
bDescriptorType
wTotalLength
bNumInterfaces
bConfigurationValue
iConfiguration
bmAttributes
bMaxPower
Field Name
Field Name
9 bytes
CONFIG_DESCRIPTOR
Length of all other descriptors
1
The configuration to use
Value depends on pin 45 - SELFPWR signal
SELFPWR = 0 yields 0xA0 and =1 yields 0xE0
18 bytes
DEVICE_DESCRIPTOR
USB specification 2.0 (1.1 if forced FS)
HUB
None
None
64 bytes
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
Overridden by EEPROM
Overridden by EEPROM
One configuration supported
Description
Description
CY7C656xx
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