22 Mar
1999
22 Mar
'99
8:48 p.m.
Ok, now the "panel" if you can call it that
on the PDP-11/03 BA11-N has
three switches as well (restart (momentary), Halt, and Aux). I assume
that these are connected in some way to the BDV11 internally? tracking
the ribbon cable isn't easy on this chassis.
Not really connected to the BDV... the BDV has controls over BHALT
and the LTC... but so does the console. They both have to be
set correctly for the processor to be in RUN mode.
The Restart switch momentarily deasserts DCOK (if I remember correctly).
The halt switch enables/disables BHALT (again, IIRC), and the LTC switch
allows/disallows line frequency interrupts.
Megan Gentry
Former RT-11 Developer
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