Appendix A - Watchdog Sample Code - DFI KS150-BT User Manual

Appendix A - Watchdog Sample Code

;Software programming example:
;---------------------------------------------
;(1) Enter Super IO Con f guration mode
;---------------------------------------------
MOV DX,2EH
MOV AL,87H
OUT DX,AL
OUT DX,AL
;-------------------------------------------------------------------------------------------
;(2) Con f guration Logical Device 7 , register CRF5/CRF6 (WD T Control /WD T
timer)
;-------------------------------------------------------------------------------------------
MOV DX,2EH
MOV AL,07H ;Ready to Progr am Logical Device
OUT DX,AL
MOV DX,2FH
MOV AL,07H ;Select Logical Device 7
OUT DX,AL
MOV DX,2EH
MOV AL, F6H ;Select watchdog timer register
OUT DX,AL
MOV DX,2FH
MOV AL,10H ;Set watchdog timer v alue
OUT DX,AL
MOV DX,2EH
MOV AL, F5H ;Select watchdog Control R egister
OUT DX,AL
MOV DX,2FH
MOV AL,61H ;Set Watchdog Control Value
OUT DX,AL
;----------------------------------------------------------------
;(1) Exit extended f unction mode
;----------------------------------------------------------------
MOV DX,2EH
MOV AL,AAH
OUT DX,AL
Appendix A Watchdog Sample Code
Appendix A
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