mwilson@pnet01.UUCP (Marc Wilson) (10/27/88)
Can anyone tell me anything about a board I just acquired? It's
a Morrow Designs MULT/IO S-100 board. It has:
1) 3 8250's
2) 1 8259 interrupt controller
3) 2k of static RAM
4) a funny connector that I was told is a parallel port, although
I don't see how ( a 50-pinner... looks like an 8" drive port )
I know the board supports extended addressing for the memory on
it, but beyond that I haven't experimented ( missing a 25LS2521 for
the port selection ).
It sounds a *lot* like my CompuPro System Support 1, except of
course for the fact that the Morrow board doesn't include a clock.
Does anyone use this beast? I'd like to get it working... three
more serial ports would be VERY useful right now... as would a
Centronics port, if that's what this 50-pin connector is.
Thanks.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
ARPA: ...!crash!mwilson@nosc.mil
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INET: mwilson@crash.CTS.COM
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~CUMMINGS@s55.prime.COM ("Kevin J. Cummings") (10/30/88)
I don't have any schematics or user manual for your board, but I do have some
BIOS drivers (From a Morrow BIOS) for your board. It is indeed 3 serial ports,
and Morrow used this board in it's Decision-1 S-100 machines. Morrow used
Port 1 for CON, Port 2 for RDR/PUN, and Port 3 for LPT (according to the
BIOS source). I suspect that the 50-pin connector is used for all three
serial ports, but I don't have the pin mappings.
============================================================================
Kevin J. Cummings Prime Computer Inc.
20 Briarwood Road 500 Old Connecticut Path
Framingham, Mass. Framingham, Mass.
InterNet: CUMMINGS@S55.Prime.COM
CSNet: CUMMINGS%S55.Prime.COM@RELAY.CS.NET
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Std. Disclaimer: "Mr. McKittrick, after careful consideration, I've come
to the conclusion that your new defense system SUCKS..."
============================================================================bms@bdt.UUCP (Vance Chin) (11/05/88)
If you need any documentation for Morrow products you can get them from Silicon Valley Surplus. They also have misc. boards, software, and manuals. They can be reached at 415 261-4662. I have no connection with the above mentioned company. Vance Chin @ Berkeley Microsystems