From rohrer@fncrd8.fnal.gov  Ukn Jun 29 12:50:28 1993
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From: rohrer@fncrd8.fnal.gov (Keith Rohrer)
Message-Id: <9306291641.AA22265@fncrdh.fnal.gov>
Subject: isa wishlist
To: riscy@pyramid.com
Date: Tue, 29 Jun 1993 11:41:09 -0600 (CDT)
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Since we more or less need an ISA bus on this puppy, can we also put in a
jumper between (I'd guess) 8 MHz and 10 MHz (assuming 40 MHz for the
processor, that's a divide-by-5 and a divide-by-4)?  I don't think that
would be too much trouble, and a relatively large number of things will
successfully deal with a 10 MHz ISA bus...

	Keith



 
From wolff@tardis.et.tudelft.nl  Ukn Jun 29 12:59:35 1993
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Date: Tue, 29 Jun 93 18:53:30 +0200
From: wolff@tardis.et.tudelft.nl (Rogier Wolff)
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To: riscy@pyramid.com, rohrer@fncrd8.fnal.gov
Subject: Re:  isa wishlist
Status: RO
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> jumper between (I'd guess) 8 MHz and 10 MHz (assuming 40 MHz for the

I'd rather not put an "arbritrary" limit on such things. Why not a 
"divide-by-N" counter? This way you'd be able to choose between
40, 20, 13, 10 and 8 (and maybe even less). This way if I happen to
have only a card that happily runs on a 40Mhz ISA bus, I can use it at
that speed...... Ok. Not that many cards will run at 40Mhz, but who 
knows......

					Roger.

 
