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Fourteen Ways to Fool Your Synchronizer
Vancouver, B.C., Canada May 12-May 15
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ASYNC.2003.1199169Ninth IEEE International Symposium on ...
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Ran Ginosar, "Fourteen Ways to Fool Your Synchronizer," Asynchronous Circuits and Systems, International Symposium on, pp. 89, Ninth IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC'03), 2003.
 
 
BibTex
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@article{ 10.1109/ASYNC.2003.1199169,
author = {Ran Ginosar},
title = {Fourteen Ways to Fool Your Synchronizer},
journal ={Asynchronous Circuits and Systems, International Symposium on},
volume = {0},
year = {2003},
issn = {1522-8681},
pages = {89},
doi = {http://doi.ieeecomputersociety.org/10.1109/ASYNC.2003.1199169},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
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TY - CONF
JO - Asynchronous Circuits and Systems, International Symposium on
TI - Fourteen Ways to Fool Your Synchronizer
SN - 1522-8681
SP
EP
A1 - Ran Ginosar,
PY - 2003
KW - null
VL - 0
JA - Asynchronous Circuits and Systems, International Symposium on
ER -
 
Ran Ginosar, Israel Institute of Technology
Transferring data between mutually asynchronous clock domains requires safe synchronization. However, the exact nature of synchronization sometimes eludes designers, and as a result synchronization circuits get "optimized" to the point where they do no longer operate correctly. This paper reviews a number of such cases, analyzes the causes of the errors, and offers a correct synchronizer circuit for each case. A correct two-flop synchronizer is presented. After discussing cases that avoid synchronization, the following synchronizers are reviewed: one flop, sneaky path, greedy path, wrong protocol, global reset, async clear, DFT leakage, pulse, slow-to-fast, metastability blocker, parallel and shared flop synchronizers.
Citation:
Ran Ginosar, "Fourteen Ways to Fool Your Synchronizer," async, pp.89, Ninth IEEE International Symposium on Asynchronous Circuits and Systems (ASYNC'03), 2003
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