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From: jdsb@egr.duke.edu (John D. S. Babcock)
Newsgroups: comp.sys.mac.misc
Subject: Re: reset button for si?
Message-ID: <1299@cameron.egr.duke.edu>
Date: 27 Jan 91 19:42:34 GMT
References: <kscott.664550201@locke.mmwb.ucsf.edu> <bic.664574995@pom.mmwb.ucsf.edu> <42971@ut-emx.uucp> <22883@well.sf.ca.us>
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Organization: Duke University EE Dept.; Durham, NC
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In article <22883@well.sf.ca.us> oster@well.sf.ca.us (David Phillip Oster) writes:
>According to Apple's notes for developers, in addition to the 68030 in the
>si, there is a processor in the keyboard, and a third processor, a 6800,
>in the CPU box, who's dole job is to service the keyboard. If the 6800
>sees a long <Command><Power>, it sends an NMI to the 68030. Unlike on an
>IBM PC, on a 68030 you can't mask an non-maskable interrupt.

Does that mean that I cannot do a NMI from my IIsi with a Datadesk Switchboard?
I have noticed several times when the mac will crash and I cannot reboot.  I
have to use the power switch.  The silly switch is configured so I have to 
turn off power altogether and turn it back on.  I cannot "reset".  This usually
happens with new programs or inits I get.  I just need to reboot and
deactivate them.
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J. D. Sterling Babcock             Duke University Electrical Engineering
jdsb@dukee.egr.duke.edu
att!egr.duke.edu!jdsb