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參數(shù)資料
| 型號(hào)： | ISD-300A1 |
| 英文描述： | Universal Serial Bus |
| 中文描述： | 通用串行總線 |
| 文件頁(yè)數(shù)： | 26/67頁(yè) |
| 文件大小： | 580K |
| 代理商： | ISD-300A1 |
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ISD-300A1
21
October 19, 2001
Address
Field Name
Description
On-board
Defaults
0xC2
0xC3
0xC4
0xC5
0xC6
0xC7
0xC8
0xC9
0xCA
0xCB
0xCC
0xCD
0xCE
0xCF
0xD0
0xD1
0xD2
0xD3
0xD4
0xD5
0xD6
0xD7
0xD8
0xD9
0xDA
0xDB
0xDC
0xFF
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
bString
Unused ROM space
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
ASCII character.
(“NUL”)
0x6F (“o”)
0x00
0x72 (“r”)
0x00
0x61 (“a”)
0x00
0x67 (“g”)
0x00
0x65 (“e”)
0x00
0x20 (“ “)
0x00
0x41 (“A”)
0x00
0x64 (“d”)
0x00
0x61 (“a”)
0x00
0x70 (“p”)
0x00
0x74 (“t”)
0x00
0x65 (“e”)
0x00
0x72 (“r”)
0x00
0x00
Table 10 – String Descriptors
Descriptor Requirements
Descriptors programmed into an I
2
C memory device must observe the following constraints.
String Descriptor Indexes
An index of 0x00 indicates the string is absent. If the string descriptor is present, the index value is the
beginning address location divided by 2. String descriptors must not cross I
2
C memory device block
boundaries, i.e., the starting address must be moved to the next I
2
C memory device boundary.
Pipes
The ISD-300A1 provides four USB pipes: Default Control, Bulk Out, Bulk In, and Interrupt.
Default Control Pipe
The default pipe is used to transport standard, class and vendor-specific USB requests to the ISD-300A1.
Bulk Out Pipe
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