B.3 Example Programs
1.Enable watchdog timer and set 10 sec. as timeout interval ;-----------------------------------------------------------
Mov dx,2eh ; Unlock W83627HF Mov al,87h
Out dx,al Out dx,al
Mov al,07h ; Select registers of watchdog timer Out dx,al
Inc dx Mov al,08h Out dx,al
Dec dx ; Enable the function of watchdog timer Mov al,30h
Out dx,al Inc dx Mov al,01h Out dx,al
Dec dx ; Set second as counting unit Mov al,0f5h
Out dx,al Inc dx In al,dx
And al,not 08h Out dx,al
Dec dx ; Set timeout interval as 10 seconds and start counting Mov al,0f6h
51 | ChapterB |
