Advantech PCA-6186 User Manual

;-----------------------------------------------------------
Dec dx

; Set second as counting unit 

Mov al,0f5h
Out dx,al
Inc

dx

In

al,dx

And al,not 08h 
Out dx,al            
;-----------------------------------------------------------
Dec dx                ; Set timeout interval as 10 seconds and start counting
Mov al,0f6h
Out dx,al
Inc

dx

Mov al,10
Out dx,al            
;-----------------------------------------------------------
Dec dx                ; lock W83627HF 
Mov al,0aah
Out dx,al
2.

Enable watchdog timer and set 5 minutes as timeout interval

;-----------------------------------------------------------
Mov dx,2eh            ; unlock W83627H
Mov al,87h
Out dx,al
Out dx,al             
;-----------------------------------------------------------
Mov al,07h            ; Select registers of watchdog timer
Out dx,al
Inc

dx

Mov al,08h
Out dx,al