Advantech PCA-6029, User Manual

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PCA-6029 User Manual 102
Dec dx ; Lock NCT6776D
Mov al,0aah
Out dx,al
3. Enable watchdog timer to be reset by mouse
;-----------------------------------------------------------
Mov dx,2eh ; Unlock NCT6776D
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
In al,dx
Or 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 NCT6776D
Mov al,0aah
Out dx,al
4. Enable watchdog timer to be reset by keyboard
;-----------------------------------------------------------
Mov dx,2eh ; Unlock NCT6776D
Mov al,87h
Out dx,al
Out dx,al
;-----------------------------------------------------------
Mov al,07h ; Select registers of watchdog timer