28 Feb
1999
28 Feb
'99
10:22 p.m.
Off almost certainly means leaving the pin open.
Depends on whether the signal is active-low or active-high.
Shouldn't matter that the memory isn't on
board, since it's PMI memory.
The real question is whether the KA650 allows the bus arbiter to be
disabled, and provides the interprocessor doorbell interrupt.
Yeah, it would... to be able to use it, there would have to be enough
Q/CD slots to have the main processor, then the KA650 and its memory.
With an 11/83 and 4mb, that leaves no slots in a BA23. Even if I
cut back to one 2mb memory board, that only leaves one slot, which
the CPU would occupy, with no room for a memory board for it...
Are there KA650 and KA655 manuals comparable to the
KA630-AA CPU Module
User's Guide? I haven't been able to find one. I recently got a KA655
(M7625-BA) with three M7622 16M RAM boards (two M7622-AT and one
M7622-AP). I'm hoping that I can just swap it with the KA630 and MS630
in my BA123. (In the BA23, IIRC, there are only three CD slots, so I'd
only be able to use two of the memory cards.)
I went looking yesterday and found my KA650 CPU module Technical manual,
so they do exist... EK-KA650-UG
Megan Gentry
Former RT-11 Developer
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