FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

8042 KEYBOARD CONTROLLER DESCRIPTION

A Universal Keyboard Controller designed for

intelligent keyboard management in desktop

computer applications is implemented. The

Universal Keyboard Controller uses an 8042

microcontroller CPU core. This section

concentrates on the 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

LS05

Keyboard and Mouse Interface

KIRQ is the Keyboard IRQ

MIRQ is the Mouse IRQ

Port 21 is used to create a GATEA20 signal

from the FDC37B78x.

KDAT

KCLK

MCLK

MDAT

129

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