Visualization and Resolution of Coding Conflicts in Asynchronous Circuit Design

  • Authors:
  • Agnes Madalinski;Alex Bystrov;Victor Khomenko;Alex Yakovlev

  • Affiliations:
  • University of Newcastle upon Tyne;University of Newcastle upon Tyne;University of Newcastle upon Tyne;University of Newcastle upon Tyne

  • Venue:
  • DATE '03 Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
  • Year:
  • 2003

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Abstract

Synthesis of asynchronous circuits from Signal Transition Graphs (STGs) involves resolving state coding conflicts. The refinement process is generally done automatically using heuristics and often produces sub-optimal solutions, which have to be corrected manually. This paper presents a framework for an interactive refinement process aimed to help the designer. It is based on the visualization of conflict cores, i.e., sets of transitions causing coding conflicts, which are represented at the level of finite and complete prefixes of STG unfoldings.