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ease of implementation, optional features, etc.

To: riscy@pyramid.com
Subject: ease of implementation, optional features, etc.
From: Drew Eckhardt <drew@kinglear.cs.Colorado.EDU>
Date: Sun, 04 Jul 1993 19:55:46 -0600
In-reply-to: Your message of "Sun, 04 Jul 1993 15:47:32 CDT." <9307042047.AA16903@rei.com>
Reply-to: riscy@pyramid.com
Sender: riscy-request@pyramid.com
As far as design :

People are forgetting one thing : application notes.  Most vendors 
have application notes that give a working sample implementation using
their chip.  For instance, National Semi's AN-479 has full schematics,
a materials list, and a PAL program (for the PAL that does shared memory
arbiting and address decode) for an ISA 8390 board (AUI / thinnet, 
jumper selectable).  If you were to go with a shared memory 8390 
implementation you could take this design, and write a new PAL program....

In any case, the analog side (what scares the non-EE's among us)
with the pulse transformers, etc would allready be done for you.


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