參數(shù)資料
型號: GL850
廠商: Electronic Theatre Controls, Inc.
英文描述: USB 2.0 4-PORT HUB Controller
中文描述: 個USB 2.0 4端口集線器控制器
文件頁數(shù): 36/40頁
文件大?。?/td> 382K
代理商: GL850
GL850 USB 2.0 4-Port HUB Controller
2000-2003 Genesys Logic Inc.—All rights reserved.
Page 36
5.4.2.8 Endpoint Descriptor in Other Speed Configuration Descriptor
Table 5.22 - Other Speed Endpoint Descriptor for High Speed
Offset
Field
Value
Description
I/O
Configuration
EEPROM
Configuration
0
bLength
07h
7bytes for this descriptor
-
-
1
bDescriptorType
05h
Endpoint descriptor type
-
-
2
bEpointAddress
81h
Address of the endpoint
-
-
4
bAttribute
03h
Interrupt endpoint
Max. packet size of the
endpoint
FFh Polling interval (ms)
-
-
5
wMaxPacketSize
01h
-
-
6
bInterval
-
-
5.4.2.9 String Descriptor
All the values of all the String Descriptors for high speed are the same as those for full speed.
Table 5.23 - String Index0 for High Speed
Offset
Field
Value
Description
I/O
Configuration
EEPROM
Configuration
0
bLength
04h
4 bytes for this descriptor
-
-
1
bDescriptorType
03h
String descriptor type
-
-
2
wLangid
0409
Language : English
-
-
Table 5.24 - String Index1 for High Speed
Offset
Field
Value
Description
I/O
Configuration
EEPROM
Configuration
0
bLength
16h
16 bytes for this descriptor
-
Y
1
bDescriptorType
03h
String descriptor type
Unicode encoded manufacture
string - USB2.0 Hub as default
setting
-
Y
2
bString
-
Y
Table 5.25 - String Index2 for High Speed
Offset
Field
Value
Description
I/O
Configuration
EEPROM
Configuration
0
bLength
XXh
x bytes for this descriptor
-
Y
1
bDescriptorType
03h
String descriptor type
Unicode encoded product string –
No default setting
-
Y
2
bString
-
Y
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