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AT43USB326 датащи(PDF) 84 Page - ATMEL Corporation

номер детали AT43USB326
подробное описание детали  Multimedia USB Keyboard Controller with Embedded Hub
PDF  102 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB326 датащи(HTML) 84 Page - ATMEL Corporation

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AT43USB326
3313D–USB–04/06
Typical
Application
The Atmel sample version of the AT43USB326 contains firmware that supports customization
of the Vendor ID, Product ID, String Descriptor and the keyboard matrix. This information is
stored in an external AT24C02A serial EEPROM. Data in the EEPROM is stored in the follow-
ing format:
Detailed
Description
Mask Bits
The mask bits identify what features are stored in the EEPROM. A “1” in the mask bit location
means that the feature is stored and should be read. A “0” means that the feature is not stored
and should not be read.
Address Range
Content
0x00 - 0x01
EEPROM's signature
0x02 - 0x03
Mask Bits
0x04 onwards
VID, PID and strings
Initial Check Byte
0x70 - 0xFF
Keyboard matrix
Address Location
Value/Content
0x00
0x17
0x01
0x5A
Mask 1
Address Location
Remark
0x02
0x03
Mask 2 - Reserved for Future Use
Bit 7: Keyboard Matrix
Bit 6: Reserved
Bit 5: Extra Hot Key Codes
Bit 4: Serial Number String
Bit 3: Product String
Bit 2: Manufacturer String
Bit 0: VID, PID, Version
Bit 1: Language String



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