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 W83627DHG Mov al,0aah
Out dx,al
Enable watchdog timer and set 5 minutes as the timeout interval
Mov dx,2eh ; unlock W83627DHG 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 ; Set minute as counting unit Mov al,0f5h
Out dx, al Inc dx In al,dx Or al, 08h Out dx,al
Dec dx ; Set timeout interval as 5 minutes and start counting Mov al,0f6h
Appendix A Programming the Watchdog Timer
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