IBASE IB530 User Manual
Page 54
![background image](/files/790378/content/doc054.png)
APPENDIX
50
IB530F User’s Manual
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