NEXCOM ICES 667 - Manual (Page 100)

Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved. 86 ICEK 667-T6 Starter Kit User Manual
Appendix A: Watchdog Timer
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SetupWDT PROC
mov dx, 2eh
mov al, 087h
out dx,al
nop
nop
out dx,al ;Write operations to special address
port (2E) for entering MB PnP Mode.
mov al, 07h
out 2eh,al
mov al, 08h ;Select logical device for Watch Dog.
out 2fh,al
ret
SetupWDT ENDP
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TimeBaseWDT
PROC
mov al,0F5h
out 2eh,al
mov al, 04h ; Here!! set 04h for second, set 0Ch for
minute(WDT output through WDTO)
out 2fh,al
ret
TimeBaseWDT ENDP
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TimeCountWDT PROC
mov al,0F6h ;WDT Time-out register.
out 2eh,al
mov al, 03h ;Here!! Set count 3.
out 2fh,al
ret
TimeCountWDT ENDP
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ExitSetup PROC
mov al, 0AAh
out 2eh,al
ret
ExitSetup ENDP
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