A.2 W83627Dhg Watchdog Timer Initial Program - Aaeon TKS-G20-LN05 Manual

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A.2 W83627DHG Watchdog Timer Initial Program

Example: Setting 10 sec. as Watchdog timeout interval
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov dx,2eh
Mov al,87h
Out dx,al
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov al,07h
Out dx,al
Inc dx
Mov al,08h
2)
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Dec dx
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
T K S - G 2 0 - L N 0 5
;Enter W83627DHG config mode
(out 87h to 2eh twice)
;Select Logical Device 8 (GPIO Port
;CR30 (GP20~GP27)
;Activate GPIO2
Appendix A Programming the Watchdog Timer
A-7