Aaeon AEC-6841, Руководство пользователя

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E m b e d d e d C o n t r o l l e r A E C - 6 8 4 1
Appendix A Programming the Watchdog Timer
A-4
= 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.
Bit 5-4 : Reserved
Bit 3 : select WDTO count mode.
= 0 second
= 1 minute
Bit 2 : Enable the rising edge of keyboard Reset
(P20) to force Time-out event.
= 0 Disable
= 1 Enable
Bit 1-0 : Reserved
WatchDog Timer Register II (Index=F6h, Default=00h)
Bit 7-0 = 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
second/minutes