User Guide

FIC CONFIDENTIAL AND PROPRIETARY
MB02 Functional Specifications Rev. 0.3 Page 59
FIC H/W
FIC CONFIDENTIAL AND PROPRIETARY 11-November-2002_
7.4.1 Mouse INT Mask(IRQ12 Mask)
The standard keyboard controller commands
Command AT PS/2 Description Remark
C8h x x Tristate IRQ12 Line
00h : Tristate IRQ12(Mouse INT Mask)
01h : Default IRQ12
Keyboard controller memory map
Symbol RAM
Location
(Range)
Description Remark
Kbc_State3 B3h Keyboard controller flag byte
Bits7-2 : Reserved
Bit1 : Enable IRQ12 tristate
Bit0 : Ghost keycheck disable
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