121
D
Watchdog Sample Code
MOV
DX,2Eh
MOV
AL,73h
;Select CR73 (Watch Dog Timer Time-Out Value
Register)
OUT
DX,AL
MOV
DX,2Fh
MOV
AL,02h
;Set CR73 value = 02h => Watch Dog Time = 2
(unit:Min)
OUT
DX,AL
;-------------------------------------------
;(3) Exit extended function mode
;-------------------------------------------
MOV
DX,2Eh
MOV
AL,02h
OUT
DX,AL
MOV
DX,2Fh
MOV
AL,02h
OUT
DX,AL