Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!caen!uwm.edu!ogicse!usenet!prism!rudolpe
From: rudolpe@prism.cs.orst.edu (Eric Rudolph)
Newsgroups: comp.sys.m68k
Subject: HELP HELP HELP on some Technical Questions for the 680000!!!
Message-ID: <1991Apr02.174845.5076@lynx.CS.ORST.EDU>
Date: 2 Apr 91 17:48:45 GMT
Sender: rudolpe@jacobs.cs.orst.edu
Reply-To: rudolpe@prism.CS.ORST.EDU (Eric Rudolph)
Organization: Oregon State Univ. -- Computer Science
Lines: 18
Nntp-Posting-Host: prism.cs.orst.edu


I need to know about how VPA* VMA* E* and AS* are related. I have one
timing diagram for them and a little chart that tells the relative
timings, but I need to know WHAT they do and how they relate in English.
Things like "what would happen if the device didn't assert VPA" and 
"Why does the 68k assert VMA* and how does it relate to VPA*" stuff like
that.... I would be very grateful. I am designinga the famed speedup circuit
for the Amiga....

Thanks

rudolpe@jacobs.cs.orst.edu
rudolpe@mist.cs.orst.edu
rudolpe@ure.cs.orst.edu

and if you could spare the call

503-745-7466 (oregon) after 5.