17 Feb
2000
17 Feb
'00
11:09 a.m.
> I just found a "Software Results
Corporation" Unibus
> (hex-height) board with an array of 32 2114 memory chips and
> a big fat 68000 chip on it. There's a COM5025 (UART?) and two
> 40-pin headers on the edge.
Yup. Cool.
Even cooler that you know all about it :-).
Out of perverse curiosity, what's the S/N? I can
eventually
look it up and tell you who used to own it. I might have even been the
guy that pulled the parts from inventory and tested the finished product.
SN 1245, Rev 3.0. There's a handwritten "O" before the "CBD-X31"
designation on the board.
I have all the software, firmware, schematics,
wire-wrap prototypes,
*everything* for them. Unless you want to speak 3780 or HASP to some other
device from your Unibus PDP-11 or VAX, that board is useless.
In that case, would anyone else on the list want to grab it?
Unless I am seriously misinformed, this board was the
first single-board
DMA device for the Unibus.
The RL11 and RX211 both date from 1978 or so and do DMA from a single Unibus
slot. Seeing how the date on this 68000 board is 1982, does this mean that
a predecessor to this board was being made in 1978 or earlier?
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927