Intel MB875 Manuale Utente Scaricare il pdf (Pagina 60)

APPENDIX

56 MB890 User’s Manual

mov cl, 0F5h

call Read_Reg

and al, NOT 08h

call Write_Reg ;set count mode as second

pop ax

mov cl, 0F6h

call Write_Reg ;set watchdog timer

mov al, 01h

mov cl, 30h

call Write_Reg ;watchdog enabled

call Lock_Chip

ret

Enable_And_Set_Watchdog Endp

;[]===============================================

; Name : Disable_Watchdog

; IN : None

; OUT : None

;[]===============================================

Disable_Watchdog Proc Near

call Unlock_Chip

mov cl, 07h

mov al, 08h

call Write_Reg ;switch to LD8

xor al, al

mov cl, 0F6h

call Write_Reg ;clear watchdog timer

xor al, al

mov cl, 30h

call Write_Reg ;watchdog disabled

call Lock_Chip

ret

Disable_Watchdog Endp

;[]===============================================

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Intel MB875 Manuale Utente Pagina 60