AAEON ACP-5212 User Manual
Page 46
M u l t i - T o u c h P a n e l P C
A C P - 5 2 1 2
Appendix A Programming the Watchdog Timer
A-7
A.2 W83627DHG Watchdog Timer Initial Program
Example: Setting 10 sec. as Watchdog timeout interval
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov dx,2eh
;Enter W83627DHG config mode
Mov al,87h
(out 87h to 2eh twice)
Out dx,al
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov al,07h
Out dx,al
Inc dx
Mov al,08h
;Select Logical Device 8 (GPIO Port
2)
Out dx,al
;///////////////////////////////////////////////////////////////////////////////////////////////
Dec dx
Mov al,30h
;CR30 (GP20~GP27)
Out dx,al
Inc dx
Mov al,01h
;Activate GPIO2
Out dx,al