( ESNUG 404 Item 15 ) -------------------------------------------- [01/08/03]
From: John Gyurek <gyurekj/gyurekj atatat tttccceee pot calm frogfrog>
Subject: How Are The Tools/Techniques For Sync/Async Resets Down At 0.13 ??
Hi, John,
I would like to hear from anyone with experience in 0.13 um and below on
the reset synchronous vs. asynchronous issue. In the past this was purely
a religious debate but now with signal integrity issues, momentum toward
synchronous global resets is building. Several articles have been
published, but I have not heard from anyone with a horror story about
glitches causing unwanted resets of flops. What about the output of the
signal integrity tools? Have glitches above threshold been reported? How
many? Bottom line: is this a manageable problem in today's tools or
something one should just avoid altogether? Does anyone recommend
re-writing legacy code?
- John Gyurek
Thomson Consumer Electronics Indianapolis, IN
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