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From: doudna@nsc.nsc.com (David Doudna)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: PC/AT (a.k.a. ISA) Technical Specs
Message-ID: <14119@nsc.nsc.com>
Date: 14 Aug 90 19:47:35 GMT
References: <866@gvlv2.GVL.Unisys.COM>
Distribution: na
Organization: National Semiconductor, Santa Clara
Lines: 30

miller@gvlv3.gvl.unisys.com (Bruce J. Miller) asks:

> Can anyone supply me with a source for the "official" PC/AT (a.k.a. ISA)
> technical specifications?  Hopefully this should include not only pinout
> info for the connector(s) but signal timing charts and relationships.  
> 
> Is there an IEEE spec published?

Yes, IEEE P996.

> Or does Big Blue have the last word?

No, IBM has absolutely nothing to do with this.   1/2 :-)

> Titles, names, addresses, phone #'s would be appreciated.

I recommend:

Interfacing to the IBM Personal Computer, 2nd Edition
Lewis C. Eggebrecht, (c) Sams 1990  ISBN 0-672-22722-3

for a good overview of PC/XT/AT/ISA/EISA/MicroChannel architectures, and

AT Bus Design  (paperback $70.00!!!)
Edward Solari, (c) Annabooks 1990  ISBN 0-929392-08-6

for the real hard-core ISA details.

-David Doudna
doudna@nsc.nsc.com