Date   : Sat, 13 Jan 1990 00:09:51 EST
From   : mbeck@ai.mit.edu (Mark Becker)
Subject: NEED info on Morrow Designs S100 CP/M machine

Hello *

In front of me is a Morrow Designs CP/M S100 machine.  It has a hard
drive, a floppy (8"), and some boards in the card cage.  The boards are:

       * MPZ80 Processor board.  Everything is here.. EPROM is
         labelled "MON 4.45".  There is a DIP switch on the card, 8
         positions.  There is one empty socket; looks like room for
         another EPROM.

       * DJDMA Floppy controller board.

       * MM65K16S 64K memory card.  Loaded with 32 6116 2K x 8 static
         RAM chips.  Two sets of DIP switches, lots of headers with
         push-on shorting blocks.  There is one empty 20-pin socket.
         (My guess is that the board would do 16-bit transfers if the
          host processor could handle it.)

       * An HDCA-4A Winchester Controller.  It's wired to an 8" 20
         MByte hard drive.

       * Lastly, a Multi-IO Interface board.  Three 8250's, an 8259
         PIA, room for two EPROMS, and what looks like a real-time
         clock.

For those that have some experience in dealing with Morrow hardware, a
question: Turning the box ON and pressing RESET causes the hard drive
to move it's heads a bit.. and then a message is displayed: DFBA4

I then see a ":" prompt.  In tinkering around, I can display memory.

The previous owner said he had never seen anything like this; his
experience was that the machine had always booted up, displaying an A>
prompt.

Sigh.  No books, no manuals, nothing.  The machine was to serve a
useful purpose; with YOUR help it may still serve.

If YOU (the reader) have ANY info on these boards, switch settings,
whatever, please get in touch with me.  Pointers to hardcopy on the
manuals would be very much appreciated.

Save bandwidth - use e-mail.  I will reply.  If sufficient interest, I
will summarize to the group.

Regards,
Mark
+-----------------------------------------------+-----------------------+
| Mark Becker                                  | .signature under      |
| Internet: mbeck@ai.mit.edu                   |       construction    |
| USENET:   {backbone}!mbmm!mbeck              |                       |
+-----------------------------------------------+-----------------------+