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LPC47M14X Datasheet(PDF) 102 Page - SMSC Corporation

No. de pieza LPC47M14X
Descripción Electrónicos  128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
PDF  205 Pages
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Fabricante Electrónico  SMSC [SMSC Corporation]
Página de inicio  http://www.smsc.com
Logo SMSC - SMSC Corporation

LPC47M14X Datasheet(HTML) 102 Page - SMSC Corporation

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SMSC DS – LPC47M14X
Page 102
Rev. 03/19/2001
6.13 8042 KEYBOARD CONTROLLER DESCRIPTION
The LPC47M14x is a Super I/O and Universal Keyboard Controller that is designed for intelligent keyboard management
in desktop computer applications. The Universal Keyboard Controller uses an 8042 microcontroller CPU core. This
section concentrates on the LPC47M14x enhancements to the 8042. For general information about the 8042, refer to
the "Hardware Description of the 8042" in the 8-Bit Embedded Controller Handbook.
8042A
P27
P10
P26
TST0
P23
TST1
P22
P11
KDAT
KCLK
MCLK
MDAT
Keyboard and Mouse Interface
LS05
KIRQ is the Keyboard IRQ
MIRQ is the Mouse IRQ
Port 21 is used to create a GATEA20 signal from the LPC47M14x.



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