Advantech PCA-6742 Series, User Manual

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PCA-6742 User Manual 38
;-----------------------------------------------------------
Dec dx
; Set timeout interval as 5 minutes and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,5
Out dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HG
Mov al,0aah
Out dx,al
3. Enable watchdog timer to be reset by mouse
;-----------------------------------------------------------
Mov dx,2eh
; unlock W83627HG
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
;-----------------------------------------------------------
Dec dx
; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;-----------------------------------------------------------
Dec dx
; Enable watchdog timer to be reset by mouse
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,80h
Out
dx,al
;-----------------------------------------------------------
Dec dx
; lock W83627HG
Mov al,0aah
Out dx,al
4. Enable watchdog timer to be reset by keyboard
;-----------------------------------------------------------
Mov dx,2eh
; unlock W83627HG