Article View: comp.sys.amiga.tech
Article #5772Re: Possible E-Clock fixes
From: Joseph Peck
Date: Fri, 12 Oct 1990 17:00
Date: Fri, 12 Oct 1990 17:00
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1112 bytes
Another question on the 8520's.....
At exactly what point is the 14Mhz speed the problem?
Is it when we are reading and writing to the CIA's?
Or, do the CIA's use the E-clock for internal timing when the
chip is not being accessed?
Secondly, if E is used for internal timing once the processor is
done with the CIA's, how important is the six-low four-high
duty cycle?
One last question (this time :)
What data book would I find the 8520's in? It's kind of hard
to theorize the design of glue logic when you don't know exactly
what you are glueing..... :)
Joe Peck
peck@ral.rpi.edu
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!rpi!peck From: peck@ral.rpi.edu (Joseph Peck) Newsgroups: comp.sys.amiga.tech,comp.sys.amiga.hardware Subject: Re: Possible E-Clock fixes Summary: Questions Message-ID: <?|X%GN$@rpi.edu> Date: 12 Oct 90 17:00:48 GMT References: <1990Oct11.193142.13719@ecst.csuchico.edu> <1990Oct12.124753.14723@sisd.kodak.com> Organization: Rensselaer Polytechnic Institute, Troy NY Lines: 18