AT43USB326 datasheet(84/102 Pages) ATMEL

Il numero della parte	AT43USB326

Spiegazioni elettronici	Multimedia USB Keyboard Controller with Embedded Hub

PDF	102 Pages

Scroll/Zoom	100%

Produttore elettronici	ATMEL [ATMEL Corporation]

Homepage	http://www.atmel.com

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84 / 102 page

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

AT43USB326 Scheda tecnica(PDF) 84 Page - ATMEL Corporation

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