IBASE Technology IB704, Руководство пользователя

Страница: 49 / 51

APPENDIX
IB704 User’s Manual 45
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
;[]===============================================
; Name
: Unlock_Chip
; IN : None
; OUT
: None
;[]===============================================
Unlock_Chip
Proc Near
mov dx, 4Eh
mov al, 87h
out dx, al
out dx, al
ret
Unlock_Chip Endp
;[]================================================
; Name
: Lock_Chip
; IN : None
; OUT
: None