F71872 datasheet(91/115 Pages) FINTEK

91 / 115 page

July, 2007

V0.28P

F71872

7.7.2 KBC Configuration Registers

KBC Device Enable Register

 Index 30h

Bit

Name

R/W Default

Description

7-1 Reserved

Reserved

KBC_EN

R/W

0: disable KBC.

1: enable KBC.

When the DTR1# is pulled down. KBC_EN is reset to 0.DTR1# is internal pull

up.

Base Address High Register

 Index 60h

Bit

Name

R/W Default

Description

7-0 BASE_ADDR_HI

R/W

00h

The MSB of KBC command port address. The address of data port is

command port address + 4;

Base Address Low Register

 Index 61h

Bit

Name

R/W Default

Description

7-0 BASE_ADDR_LO

R/W

60h

The LSB of KBC command port address. The address of data port is command

port address + 4.

KB IRQ Channel Select Register

 Index 70h

Bit

Name

R/W Default

Description

7-4 Reserved

Reserved.

3-0 SELKIRQ

R/W

Select the IRQ channel for keyboard interrupt.

Mouse IRQ Channel Select Register

 Index 72h

Bit

Name

R/W Default

Description

7-4 Reserved

Reserved.

3-0 SELMIRQ

R/W

Select the IRQ channel for PS/2 mouse interrupt.

F71872 Datasheet(PDF) 91 Page - Feature Integration Technology Inc.

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