Intel Full-size CPU Card Network Card User Manual


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Full-size CPU Card FSB- 865G
Appendix B Programming the Watchdog Timer B-6
B.2 W83627HF Watchdog Timer Initial Program
Example: Setting 10 sec. as Watchdog timeout interval
;///////////////////////////////////////////////////////////////////////////////////////////////
Mov dx,2eh ;Enter W83627HF 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
;///////////////////////////////////////////////////////////////////////////////////////////////
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