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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

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