AXIOMTEK OPS830 Series, Руководство пользователя

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OPS830 Series
User’s Manual
Watch Dog Timer 55
Sample Program
Assembly sample code :
;Enable WDT:
mov
dx,2Eh
mov al,87 ;Un-lock super I/O
out dx,al
out dx,al
;Select Logic device:
mov
dx,2Eh
mov al,07h
out dx,al
mov dx,2Fh
mov al,07h
out dx,al
;WDT Device Enable:
mov dx,2Eh
mov al,2Bh
out dx,al
mov dx,2Fh
mov al,00h
out dx,al
mov dx,2Eh
mov al,30h
out dx,al
mov dx,2Fh
mov al,01h
out dx,al
;Activate WDT:
mov
dx,2Eh
mov al,0F0h
out dx,al
mov dx,2Fh
mov al,80h
out dx,al
;Set Second or Minute :
mov
dx,2Eh
mov al,0F5h
out dx,al
mov dx,2Fh
mov al,Nh ;N=71h or 79h(see below Note)
out dx,al