Korenix JetBox 8180 User Manual page 50

Out dx,al
;------------------------------------------------------------------------------------------------------
; Logical device 8, configuration register CRF5 Bit 3,CRF6 Bit 0~7
;------------------------------------------------------------------------------------------------------
Mov dx,2fh
Mov al,08h
Out dx,al
Mov dX,2eh
Mov al,0f5h
Out dx,al
Mov dx,2fh
In al,dx
Or al,c0
And al,not c8h
;And al,c8h
Out dx,al
Mov dx,2eh
Mov al,0f6h
Out dx,al
Mov dx,2fh
Mov al,28h
Out dx,al
;------------------------------------------
; Exit extended function mode
;------------------------------------------
Mov dx,2eh
Mov al,0aah
Out dx,al
Watchdog Timer Trigger
After you enabled the watchdog timer, your program must write the same factor as
enabling to the watchdog register at least once every time-out period to its previous
setting. You can change the time-out period by writing another timer factor to the
watchdog register at any time, and you must trigger the watchdog before the new
time-out period in next trigger.
Watchdog Timer Disabled
50 Software Installation | Korenix
; Select Logical Device 8 of watchdog timer
;Set second as counting unit
; Trigger P/W LED.
;Set Second.
;Set Minute.
; Set timeout interval as 28seconds and start counting