Design of asynchronous circuits by synchronous CAD tools

  • Authors:
  • Alex Kondratyev;Kelvin Lwin

  • Affiliations:
  • Cadence Berkeley Laboratory, Berkely, CA;Reshape Inc., Mountain View, CA

  • Venue:
  • Proceedings of the 39th annual Design Automation Conference
  • Year:
  • 2002

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Abstract

The roadblock to wide acceptance of asynchronous methodology is poor CAD support. Current asynchronous design tools require a significant re-education of designers, and their features are far behind synchronous commercial tools. This paper considers a particular subclass of asynchronous circuits (Null Convention Logic or NCL) and suggests a design flow that is based entirely on commercial CAD tools. This new design flow shows a significant area improvement over known flows based on NCL.