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 W83627DHG-P
Mov
al,0aah
Out
dx,al
4.
Enable watchdog timer to be reset by keyboard
;-----------------------------------------------------------
Mov dx,2eh
; unlock W83627DHG-P
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 strobed reset by keyboard
Mov
al,0f7h
Out
dx,al
Inc
dx
In
al,dx
Or al,40h
Out
dx,al
59
PCA-6013 User Manual