W6694 Datasheet, PDF (10/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
USB standard requests are supported by W6694, and W6694 will respond to requests according to
USB specification revesion 1.1. These includes “CLEAR_FEATURE, GET_CONFIGURATION,
GET_DESCRIPTOR, GET_INTERFACE, GET_STATUS, SET_ADDRESS, SET_CONFIGURATION,
SET_DESCRIPTOR, SET_FEATURE, SET_INTERFACE”. The “SYNC_FRAME” request is not
supported.
7.1.1 Control-IN Transactions (Endpoint 0)
7.1.1.1 Get Device Descriptor
OFFSET
FIELD
SIZE
0
bLength
1
1
bDescriptorType
1
2
bcdUSB
2
4
bDeviceClass
1
5
bDeviceSubClass
1
6
bDeviceProtocol
1
7
bMaxPacketSize
1
8
idVendor
2
10
idProduct
2
12
bcdDevice
2
14
iManufacturer
1
15
iProduct
1
16
iSerialNumber
1
17
bNumConfiguration
1
* Note: Refer to EEPROM session for its layout of contents.
DEFAULT VALUE
(HEX)
12
01
0110
FF
00
00
08
1046
6694
0100
00
01
00
01
7.1.1.2 Get Configuration Descriptor
OFFSET
0
1
2
4
5
6
7
FIELD
bLength
bDescriptorType
wTotalLength
bNumInterface
bConfigurationValue
iConfiguration
bmAttributes
SIZE
VALUE (HEX)
Configuration Descriptor
1
09
1
02
2
003E
1
01
1
01
1
00
1
A0
8
MaxPower
1
32
UPDATED BY EEPROM
Yes *
Yes *
Yes *
REMARK
62
Bus Powered,
Remote Wakeup
100 mA
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