NEXCOM NISE 3100eP2 - Manual (Page 75)

Copyright © 2009 NEXCOM International Co., Ltd. All Rights Reserved. 62 NISE 3100e, NISE 3100eP2, NISE 3150e User Manual
Appendix C: Watchdog Timer Setting
A
ppendix
C: W
AtChdog
t
imer
S
etting
;*Enter the MB PnP mode with 0x87, 0x01, 0x55, 0x55
mov
dx, 2eh
mov al, 87h
out dx, al
mov dx, 2eh
mov al, 01h
out dx, al
mov dx, 2eh
mov al, 55h
out dx, al
mov dx, 2eh
mov al, 55h
out dx, al
;*Set LDN=0x07 point to the WDT function
mov
dx, 2eh
mov al, 07h
out dx, al
mov dx, 2fh
mov al, 07h
out dx, al
;*Setup configuration register 0x72, if set 0c0h is second, set 40h is
minute(WDT output through KRST)
mov
dx, 2eh
mov al, 72h
out dx, al
mov dx, 2fh
mov al, 0c0h
out dx, al
;*Setup WDT time-out value. this demo code is used to program the tim-
out value with 4 sec.
mov
dx, 2eh
mov al, 73h
out dx, al
mov dx, 2fh
mov al, 4
out dx, al
;*Exit the MB PnP Mode
mov
dx, 2eh
mov al, 02h
out dx, al
mov dx, 2fh
mov al, 02h
out dx, al