Re: HP-41 Time Module question Message #7 Posted by Monte Dalrymple on 15 Oct 2010, 12:27 a.m., in response to message #6 by PeterP
Peter,
Thanks, but the polling points are tested while the processor is running. The CPU executes POWOFF to go into light sleep after processing. I couldn't figure out how it started right back up. But after reading the spec for the timer chip (duh... rookie mistake) I figured out that the timer chip drives the ISA bus High, which is one of the wake-up conditions. Sorry for wasting everyone's time.
Monte
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