20 Jun
2000
20 Jun
'00
2:33 p.m.
AM2901APC/7829DP; AM2909PC/7811DP; AM2907PC/7828DM Those are the
bigger chips on the board.
John Keys
----- Original Message -----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, June 20, 2000 12:58 PM
Subject: Re: New Finds
:-).
> 6. AMD AM 2900 Evaluation & Learning kit. A
nice single board
computer
with the box
but no manuals. There was a sheet titled "Am2900 Kit
Programming Work Sheet". Anyone have more info on this unit ?
The AM2900 series are bit-slice chips for making your own processors The main ones are either 4 bit ALU/registers (2901 and
2903) that you
can
cascade up to the word size you want and microcode
sequencer chips
(2909,
2911, 2910).
There were various evaluation boards. Typically they gave you an ALU
of
perhaps 8 or 16 bits, a sequencer, and a RAM based
control store that
you
loarded your own microcode into.
You'll need a copy of the AMD bipolar processor databook (or 2900
databook) to do much with this board. And a copy of 'Mick & Brick' (a
book entitled 'Bit Slice Microprocessor Design') would be useful as
well.
Post the numbers on the larger chips (or anything that's not plain
74xx
TTL) on your board and we'll see if we can work
out what you have.
-tony