Lanner electronics AP-545L Manual page 59

APPENDIX A.
To use the watch-dog timer :
Step 1. Enable and retrigger the Watch-Dog timer: 443H
Step 2. Disable: 43H
EX.1: For DOS
Execute the DEBUG.EXE file under DOS, Then key-in i443. The system will reboot
automatically according to the time-out you set.
C:\DOS> DEBUG
-i443
EX.2: For assemble Language
Enable
MOV DX, 443H
IN AL, DX
Disable
IN AL, 43H
HOW TO USE WATCH-DOG TIMER
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