109
A
Watchdog Timer
MOV
DX,4FH
MOV
AL,02H
;Set CRF7[Bit:7,6]=11, WDT reset by mouse/keyboard
interrupt
OUT
DX,AL
;-------------------------------------------
;(3) Exit extended function mode
;-------------------------------------------
MOV
DX,4EH
MOV
AL,AAH
OUT
DX,AL