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W83C42

Winbond
Part Number W83C42
Manufacturer Winbond
Description KEYBOARD CONTROLLER
Published Sep 14, 2006
Detailed Description www.DataSheet4U.com W83C42 KEYBOARD CONTROLLER GENERAL DESCRIPTION The W83C42 keyboard controller is programmed to supp...
Datasheet PDF File W83C42 PDF File

W83C42
W83C42

Overview
www.
DataSheet4U.
com W83C42 KEYBOARD CONTROLLER GENERAL DESCRIPTION The W83C42 keyboard controller is programmed to support the IBM® compatible personal computer keyboard serial interface.
The keyboard controller receives serial data from the keyboard, checks the parity of the data, translates the scan code, and presents the data to the system as a byte of data in its output buffer.
The controller will interrupt the system when data is placed in its output buffer.
The byte of data will be sent to the keyboard serially with an odd parity bit automatically inserted.
The keyboard is required to acknowledge all data transmissions.
No transmission should be sent to the keyboard until acknowledge ...


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