Advantech PCE-5120 - Manual (Page 103)

87 Appendix A
In al,dx
Or al,08h
Out dx,al
;-----------------------------------------------------------
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 W83627HF
Mov al,0aah
Out dx,al
3.
Enable watchdog timer to be reset by mouse
;-----------------------------------------------------------
Mov dx,2eh ; unlock W83627HF
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