24 Jun
2003
24 Jun
'03
10:39 a.m.
Does anyone have the technical reference for the 16-bit version
of the PC/AT prototype adapter, part 6450220? Or a pointer to
it online?
Thanks,
Dave
--
David C. Jenner
djenner(a)earthlink.net
24 Jun
24 Jun
10:53 a.m.
Does anyone have the technical reference for the
16-bit version
of the PC/AT prototype adapter, part 6450220? Or a pointer to
it online?
I'm pretty sure I have it. IIRC, though, it's just buffers and maybe
address decoder circuits, so it should be trivial to reverse-engineer the
card, if you need to know what signals appear on what solder pads, etc
The TechRef is nothing more than the physical dimensions of the card and
the schematic of the IBM-built part. There are no examples of how to use
it, or anything like that.
-tony
12:53 p.m.
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
of the PC/AT
prototype adapter, part 6450220? Or a pointer to
it online?
I'm pretty sure I have it. IIRC, though, it's just buffers and maybe
address decoder circuits, so it should be trivial to reverse-engineer the card, if you need to know what signals appear on what
solder pads, etc
I have _a_ third-party PC/AT proto card, with select logic on one
end, and a sea of holes on the other - no map of what chips go in
which spots (but a couple of them should be easy to guess). I should
scan it, put it on my web site, then ask if anyone has seen that model
before.
-ethan
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days inactive
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participants (3)
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ard＠p850ug1.demon.co.uk -
djenner＠earthlink.net -
erd_6502＠yahoo.com