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參數(shù)資料
| 型號： | AT43USB326-AU |
| 廠商： | Atmel Corp. |
| 英文描述： | Multimedia USB Keyboard Controller with Embedded Hub |
| 中文描述： | 多媒體USB鍵盤控制器的嵌入式集線器 |
| 文件頁數(shù)： | 85/102頁 |
| 文件大?。?/td> | 511K |
| 代理商： | AT43USB326-AU |
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85
AT43USB326
3313D–USB–04/06
Address locations 0x04 through 0x6E store the VID, PID, Release Number and String
Descriptors if they are enabled by the mask bits in location 0x03. The data are stored sequen-
tially as described below:
Initial Check Byte
This check byte is located immediately after the last VID, PID or stings. It is computed as the
truncated sum of Mask1 and all the string length specified.
Keyboard Matrix
The keyboard matrix is 144 bytes. If specified, its check byte is located in address 0x6F while
the matrix itself is located from address 0x70 - 0xFF.
0x70 = Col 0, Row 0
0x71 = Col 0, Row 1
.......
0x78 = Col 1, Row 0
0x79 = Col 1, Row 1
.....
0xF8 = Col 17, Row 0
0xF9 = Col 17, Row 1
.....
0xFF = Col 17, Row 7
Example of
SEEPROM Data
Table 26 through Table 34 illustrate the contents of a SEEPROM for a typical AT43USB326-
based keyboard.
Table 24.
VID and PID
VID
Byte 1
VID
Byte 2
PID
Byte 1
PID
Byte 2
Release #
Byte 1
Release #
Byte 2
Check
Byte
Table 25.
Language ID and Strings
Length
(N)
Byte 1
Byte 2
Byte
N
- 1
Check Byte
Table 26.
Preamble
Address
Data
Description
00
17
Fixed ID
01
5A
Fixed ID
02
00
Reserved
03
BF
Mask bits
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相關(guān)代理商/技術(shù)參數(shù) |
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| AT43USB351M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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