DFI-ITOX G7L630-B User Manual page 122

D
Watchdog Sample Code
MOV DX,SIO_DATA
MOV AL,08H
OUT DX,AL
MOV DX,SIO_CON_PORT
MOV AL,030H
OUT DX,AL
MOV DX,SIO_DATA
OR AL,01H
OUT DX,AL
MOV DX,SIO_CON_PORT
MOV AL,0F5H
OUT DX,AL
MOV DX,SIO_DATA
IN AL,DX
OR AL,02H
OUT DX,AL
MOV DX,SIO_CON_PORT
MOV AL,0F6H
OUT DX,AL
MOV DX,SIO_DATA
MOV AL,0AH
OUT DX,AL
mov DX,SIO_CON_PORT
mov al, 0AAh
out dx, al
;================ RETURN DOS =================
mov ah,4ch
int 21h
end begin
122
;SELECT DEVICE 8 (WATCH DOG)
;ACTIVATE REGISTER
;0= INACTIVATE, 1=ACTIVATE
;WATCH DOG CONTROL REGISTER
;BIT1 DIS/EN WDTO# OUTPUT
LOW PULSE TO KBRST#PIN(0=DIS,
1=ENABLE)
;BIT3 COUNTER MODE SLEECT
(0=SECOND MODE, 1=MINUTE
MODE)
;WATCH DOG COUNTER
;SET COUNTER (EX 10 SEC)
;SUPERIO EXIT CONFIG
;return dos
;procdure pclock.asm end