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參數(shù)資料
型號: ISP1122BD
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Universal Serial Bus stand-alone hub
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP32
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-358-1, LQFP-32
文件頁數(shù): 15/48頁
文件大小: 1159K
代理商: ISP1122BD
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
15 of 48
9397 750 07002
Philips Electronics N.V. 2000. All rights reserved.
9.3 Descriptors
The ISP1122 hub controller supports the following standard USB descriptors:
Device
Configuration
Interface
Endpoint
Hub
String.
Table 10: Device descriptor
Values in square brackets are optional.
Offset
(bytes)
0
bLength
1
bDescriptorType
2
bcdUSB
4
bDeviceClass
5
bDeviceSubClass
6
bDeviceProtocol
7
bMaxPacketSize0
8
idVendor
Field name
Size
(bytes)
1
1
2
1
1
1
1
2
Value
(Hex)
12
01
10, 01
09
00
00
40
CC, 04
Comments
descriptor length = 18 bytes
type = DEVICE
USB Specification Rev. 1.1
HUB_CLASSCODE
-
-
packet size = 64 bytes
Philips Semiconductors vendor ID
(04CC); can be customized using an
external EEPROM (see
Table 23
)
ISP1122 product ID; can be
customized using an external
EEPROM (see
Table 23
)
device release 1.1; silicon revision
increments this value
no manufacturer string (default)
manufacturer string enabled
(using an external EEPROM)
no product string (default)
product string enabled
(using an external EEPROM)
no serial number string
one configuration
10
idProduct
2
22, 11
12
bcdDevice
2
01, 01
14
iManufacturer
1
00
[01]
15
iProduct
1
00
[02]
16
17
iSerialNumber
bNumConfigurations
1
1
00
01
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