Article View: comp.sys.transputer
Article #2391Re: External Memory Write Cycle ...
From: Ravi Masand
Date: Tue, 20 Dec 1988 19:45
Date: Tue, 20 Dec 1988 19:45
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952 bytes
In article <> you write: >When writting a single byte to external memory, what happens with >the rest of the MemADxx lines, are they in tristate or driven by the >Tp to a known value? Thanks in advance. >-- >Dario. The transputer reference manual (Oct 1986, pg 46) says: "A seperate MemWrB signal is provided for each byte. A word (32 bit ??) write uses all the notMemWrB signals. If a particular byte is not to be written, then the corresponding data outputs are tristated" So, yes, they are tristated. Ravi Masand bellcore!thumper!rtm1
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!bellcore!faline!thumper!rtm1 From: rtm1@thumper.bellcore.com (Ravi Masand) Newsgroups: comp.sys.transputer Subject: Re: External Memory Write Cycle ... Message-ID: <1412@thumper.bellcore.com> Date: 20 Dec 88 19:45:39 GMT Reply-To: rtm1@thumper.UUCP (Ravi Masand) Organization: Bellcore MRE Lines: 16