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From: qwerty@drutx.UUCP (JonesBD)
Newsgroups: net.lsi
Subject: Re: Self timed vs synchronous, lets discuss
Message-ID: <1046@drutx.UUCP>
Date: Thu, 6-Sep-84 13:11:26 EDT
Article-I.D.: drutx.1046
Posted: Thu Sep  6 13:11:26 1984
Date-Received: Sun, 16-Sep-84 12:04:26 EDT
References: <265@rochester.UUCP>, <18@sdcsvax.UUCP>, <3019@utah-cs.UUCP> <1393@wateng.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 7

Self timed circuits/chips become even more of a headache when used in larger
circuits/assemblies.  If no provision is made for external control of the
self timing circuitry, the circuit becomes nearly untestable with any
technique other than overall functional operation.  This yields zero
diagnostics when something is wrong.  People who design/use self timed
circuits without any provisions for testing manage to keep life interesting
for those of us employed in the test area.