Appendix A Programming the Watchdog Timer
111
A.1.4 Example Program
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
Summary of Contents for PCA-6180 Series
Page 1: ...PCA 6180 Full size socket 370 Intel Pentium III Celeron processor based PCI ISA bus CPU card ...
Page 22: ...8 PCA 6180 User s Manual 1 4 Board Layout Main Features Figure 1 1 Board layout main features ...
Page 73: ...Chapter 5 AGP SVGA Setup 61 2 Click Next when you see the following message ...
Page 113: ...Chapter 8 Onboard Security Setup 103 6 Click OK to restart Windows ...
