Watch Dog Timer Setting - MSI P1-109N-L70 User Manual

Watch Dog Timer Setting

MS-91A2 watchdog timer is using Super I/O W inbond W 83627EHG.
Setup procedures
A. Enter super I/O configuration mode -
mov dx, 04eh
mov al, 087h
out dx, al
out dx, al
B. Set pin 77 to W DTO# function
mov dx,04eh
mov al,02Dh;;
out dx,al
inc d x
in al,dx
and al,0FEh
out dx,al
C. Select Logical Device 8
mov dx, 04eh
mov al, 07h
out dx, al
inc d x
mov al, 08h
out dx, al
D. Enable watchdog timer
Activate WDTO#
;Register 2Dh
;Config Bit 0 As 0
;Config PIN 77 as WDTO#
;point to Logical Device Number Register
;select Logical Device 8
Getting Started
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