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From: whitewolf@gnh-starport.cts.com (Tae Song)
Newsgroups: comp.sys.apple2
Subject: Re: rnews batch
Message-ID: <m0jFE9Y-000045C@jartel.info.com>
Date: 10 Mar 91 00:54:40 GMT
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X-Unparsable-Date: Sat Mar  9 91 at 16:00:19 (EST)

Zip doesn't access main memory at 8Mhz, it access it at 2.5-2.8Mhz. Only the
cache RAM get accessed at full 8Mhz.  Oops, change that to 1-2.8Mhz for main
memory.  I can't verify if using 150ns affects it, since all my chips are 120ns
or better.

All of Zips are DMA compatible except for one model... they're cheapest one. 
Transwarp are also DMA compatible, they're earlier models needed new PALs
to be DMA comaptible... all current TWGS are DMA compatible though.
 
whitewolf@gnh-starport!info-apple