AXIOMTEK tBOX320-852-FL Series User Manual page 92

tBOX320-852-FL Series User's Manual
;Activate WDT:
mov dx,2Eh
mov al,30h
out dx,al
mov dx,2Fh
mov al,01h
out dx,al
;Set Second or Minute :
mov dx,2Eh
mov al,F5h
out dx,al
mov dx,2Fh
mov al,Nh
out dx,al
;Set base timer :
mov dx,2Eh
mov al,F6h
out dx,al
mov dx,2Fh
mov al, Mh
out dx, al
;Disable WDT:
mov dx,2Eh
mov al,30h
out dx,al
mov dx,2Fh
mov al, 00h
out dx,al
Note:
When N's value is 00h, the time base is set second.
M = 00: Time-out Disable
01: Time-out occurs after 1 second
02: Time-out occurs after 2 seconds
03: Time-out occurs after 3 seconds
FF: Time-out occurs after 255 seconds
84
;N=00h or 08h(See below
;M=00h,01h,02h,.....FFh (Hex),Value=0 to 255
; (See below Note)
;Can be disable at ant time
Note)
Watchdog Timer