MemCals Needing RFD Tweeking Before Finding A Home......

[Walter Sherwin]

Thanks Ludis.  I have now had a chance to go over your site material, and
I'll ponder further. Two quick questions about the snippet below, plus one
more:

1)which trace was the RFD disabler in your case, and were there any
ramifications from the computer "thinking" that the MEMCAL was missing?
2)when you bench run a P4 without NETRES's, I assume you still must find the
moding pin(s) and arrange for a suitable voltage on same?
3)can a person physically disect the NETRES blocks so as to deduce the inner
architecture, or is that simply impractical/impossible?

Walt.


>
> A while ago, I think I found that one of the NETRES to RFD connections
> could tell the RFD to shut up.  In other words, this one signal is used
> to detect a missing MEMCAL.  When I bench run a P4 without NETRES's
> installed, the RFD remains mute.
>


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