Watchdog Timer - DFI-ITOX EL330-DR User Manual

B

Watchdog Timer

MOV
MOV
OUT
MOV
IN
OR
OUT
MOV
MOV
OUT
MOV
MOV
OUT
MOV
MOV
OUT
MOV
MOV
OUT
mov
mov
out
;================ RETURN DOS ===================
mov
int
end begin
136
DX,SIO_CON_PORT
AL,0F5H
DX,AL
DX,SIO_DATA
AL,DX
AL,02H
DX,AL
DX,SIO_CON_PORT
AL,0F6H
DX,AL
DX,SIO_DATA
AL,0AH
DX,AL
DX,SIO_CON_PORT
AL,0F7H
DX,AL
DX,SIO_DATA
AL,00H
DX,AL
DX,SIO_CON_PORT
al, 0AAh
dx, al
ah,4ch
21h
;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)
;WATCH DOG COUNTER
;Clear WDTO
;SUPERIO EXIT CONFIG
;return dos