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Date:      Tue, 21 May 1996 13:54:44 +0930 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        taob@io.org (Brian Tao)
Cc:        msmith@atrad.adelaide.edu.au, freebsd-questions@FreeBSD.org
Subject:   Re: NE2000 Plus not probed correctly?
Message-ID:  <199605210424.NAA24987@genesis.atrad.adelaide.edu.au>
In-Reply-To: <Pine.NEB.3.92.960520235202.1359c-100000@zot.io.org> from "Brian Tao" at May 20, 96 11:59:09 pm

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Brian Tao stands accused of saying:
> 
> On Tue, 21 May 1996, Michael Smith wrote:
> >
> > Odd.  Can you see if you can find out what the blob on the card is
> > (ie. is it an 83C90, or someone's clone?)
> 
>     This is what I got back from Ean (the fellow with the cards):
> 
> |  Here are the numbers I found on the card:
> |  n82s123n

Address decoder perhaps?

> |  m5m5165fp       (two of them with the samsung logo on them)

Memory chips.

> |  dl3516a         (big chip in the middle of the board)

Hmm.  'big' as in 'big and square', or big as in 'big and rectangular 
and tall'?  (It's either a custom blob or the +5 to -9V converter).

> |  dp83910an
> |  dp8392c

These sound like the meat; I don't have a card here in my pile (just checked)
with an 83910 on it, so I can't try it out.  Anyone else got one of
these?

> |  16r4bcn

Glue logic.

>     The "dp83910an" and "dp8392c" look significant?

Yup.  The latter is the 'line driver' part, but I'm fairly sure the
former is an 8390 superset part.  At any rate, I don't think it's an
oddball; the 'dp' prefix is NatSemi's current one for their parts.  It
should have a sort of oval-shaped 'N' on it as well if this is the
case.

Well, it looks like we can rule out 'busted hardware' and go for 'weird or
not-quite-compatible' instead.  8(

Short of building up a kernel with more debugging turned on in the 'ed' 
driver, I'm at a bit of a dead-end here, sorry.

David, as the 'ed' guru, do you have any ideas?

> Brian Tao (BT300, taob@io.org, taob@ican.net)

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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