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I n d u s t r i a l M o t h e r b o a r d
Bit 5-4
Bit 3
Bit 2
Bit 1-0
WatchDog Timer Register II (Index=F6h, Default=00h)
Bit 7-0
Appendix A Programming the Watchdog Timer
= 01 Power LED pin is drived low.
= 10 Power LED pin is a 1Hz toggle pulse
with 50 duty cycle.
= 11 Power LED pin is a 1/4Hz toggle pulse
with 50 duty cycle.
: Reserved
: select WDTO count mode.
= 0
second
= 1
minute
: Enable the rising edge of keyboard Reset
(P20) to force Time-out event.
= 0 Disable
= 1 Enable
: Reserved
= 0 x 00 Time-out Disable
= 0 x 01 Time-out occurs after 1
second/minute
= 0 x 02 Time-out occurs after 2
second/minutes
= 0 x 03 Time-out occurs after 3
second/minutes
......................................
= 0 x FF Time-out occurs after 255
A-4
I M B A - 8 8 0
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