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6/2012 : Metastability Containment for Muller-C Elements

RR Number
6/2012
Author(s)
Thomas Polzer, Andreas Steininger
Abstract
Wherever circuit blocks operate concurrently with unrelated timing behavior, metastability concerns arise at their interfaces. Metastability mitigation is very well researched in the synchronous domain. However, within the asynchronous design paradigm it is normally assumed that the local timing information prevents metastability. Unfortunately this is only true within the timing closure of the circuit and in the absence of external failures. When interfacing to other timing domains, metastability may also arise in asynchronous circuits. This paper analyzes the vulnerability of asynchronous circuits to metastability, using the example of a Muller C-element which is a key element for building highly concurrent systems. Traditional synchronous mitigation techniques are adopted for this kind of circuits and their fitness for the asynchronous domain is analyzed.
Bibtex
@techreport{ polzer:2012-6,
  author =       "Thomas Polzer and Andreas Steininger",
  title =        "Metastability Containment for Muller-C Elements",
  institution =  "Technische Universit{\"a}t Wien, Institut f{\"u}r Technische Informatik",
  address =      "Treitlstr. 1-3/182-1, 1040 Vienna, Austria",
  type =         "Research Report",
  year =         "2012",
  number =       "6/2012"
}
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