Overvew
▍
MS-S0571
1-5
Overvew
▍
MS-S0571
Watch Dog Timer Setting
Setup procedures
A. Enter super I/O configuration mode -
mov
dx, 04eh
mov
al, 087h
out
dx, al
out
dx, al
B. Select Logcal Devce 8
mov
dx, 04eh
mov
al, 07h
out
dx, al
;pont to Logcal Devce Number Regster
nc
dx
mov
al, 08h ;select Logcal Devce 8
out
dx, al
C. Enable watchdog tmer
Actvate WDTO#
mov
dx, 04eh ;CR 30h: bit 0 fill in 1
mov
al, 030h
out
dx, al
nc
dx
n
al, dx
or
al, 01h
out
dx, al
; Setup WDTO# count mode
; Set bt 4 and bt 3 by request
; Set bt 2 to 0
; Set bt 1 to 1