Aaeon PFM-540I Rev.А Uživatelský manuál stáhnout pdf (Strana 51)

PC 104 CPU Module PFM-540I

Appendix A Programming the Watchdog Timer A-6

A.2 IT8712F-A Watchdog Timer Initial Program

.MODEL SMALL

.CODE

Main:

CALL Enter_Configuration_mode

CALL Check_Chip

mov cl, 7

call Set_Logic_Device

;time setting

mov cl, 10 ; 10 Sec

dec al

Watch_Dog_Setting:

;Timer setting

mov al, cl

mov cl, 73h

call Superio_Set_Reg

;Clear by keyboard or mouse interrupt

mov al, 0f0h

mov cl, 71h

call Superio_Set_Reg

;unit is second.

mov al, 0C0H

mov cl, 72h

call Superio_Set_Reg

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Aaeon PFM-540I Rev.А Uživatelský manuál Strana 51