It8712 Initial Watchdog Timer Program - Aaeon PCM-6897/L Manual

Compact Board
6 WDT output through KRST (pulse) enable
5-4 Reserved
3-0 Select the interrupt level
WatchDog Timer Time-out Value Register (Index=73h,
Default=00h)
Bit Description
7-0 WDT Time-out value 7-0
A.3 IT8712 initial WatchDog timer program
MODEL SMALL
.CODE
Main:
CALL
CALL
mov
call
;time setting
mov cl, 10 ; 10 Sec
dec al
Watch_Dog_Setting:
;Timer setting
mov al, cl
mov cl, 73h
Appendix A Programming the Watchdog Timer
Enter_Configuration_mode
Check_Chip
cl, 7
Set_Logic_Device
P C M - 6 8 9 7 / L
for WDT
Note
A-5