Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!ucbvax!pasteur!ames!mailrus!tut.cis.ohio-state.edu!bloom-beacon!bu-cs!spike
From: spike@bu-cs.BU.EDU (Spike)
Newsgroups: comp.sys.apple
Subject: Re: 2 MHz 65C02
Message-ID: <21734@bu-cs.BU.EDU>
Date: 16 Apr 88 17:04:50 GMT
References: <8804152211.aa11958@SMOKE.BRL.ARPA>
Reply-To: spike@bu-it.bu.edu (Joe Ilacqua)
Followup-To: comp.sys.apple
Organization: Boston University Distributed Systems Group
Lines: 25

In article <8804152211.aa11958@SMOKE.BRL.ARPA> pgoetz@loyvax.bitnet writes:
<
<        Does anyone have experience with using a 2 MHz 65C02?  Can you just
<drop it in & run the computer?  I am certain that it would not initialize nor
<write to disks correctly, but suspect that it could read from disks.  Is this
<correct?

	The processor should run fine, however it still will be 1 MHz.
The clock in the apple drives the processor at 1 MHz, so changing the
processor in it will not change the speed.  The MHz rating off a chip
is how fast it *can* go.  In fact, a common manufacturing technique is
to test the chip at the highest speed, if fails try again at lower
speeds until one is found at which it works.

	Could you put a faster clock in?  Maybe.  You would have to
worry about RAM access, video timing, drive access, etc.  The only
thing that is sure is that it would require a great deal of work.

	"Last night I had that dream again. I dreamt I had to take a
		test, in a Dairy Queen, on another planet."
 UUCP:	...!harvard!bu-cs!bu-it!spike  INTERNET: spike@bu-it.bu.edu
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->Spike