27 Apr
1998
27 Apr
'98
7:54 p.m.
On Sun, 26 Apr 1998 11:18:49 -0400, allisonp(a)world.std.com (Allison J
Parent) wrote:
There are a couple of blank sockets, and a TMM2016P-2
memory chip (a
2716??)...
>First off 2016 is a byte wide ram.
I had never seen that Toshiba chip before. The 2716 was just a guess
based on the part number. I'd guess that it's 200ns RAM. Is it a 2kw chip?
>I sounds like someone stripped the card.
Actually, of 63 chips, only the 16 RAM chips, a 24-pin socket next to
the uP, and two 16-pin chips near the PIO and CTC chips are empty.
>The SBC-1 was a complete Z80cpu(4 or
6mhz)/64kram/eprom/IO card it was
designed to >>be used as a slave to the
Systemaster cpu card. The 2016 was
used to create a FIFO so >>that block IO could be used to communicate with
it. The only thing it lacked to be a complete >>S100 cp/m system on a board
was disk IO. The system master card had all that
>and FDC as well.
Do you have any schematics or other info on this board?
Rich Cini/WUGNET
<nospam_rcini(a)msn.com> (remove nospam_ to use)
ClubWin! Charter Member (6)
MCP Windows 95/Windows Networking
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