Single Output Distributed Two-Rail Checker with Diagnosing Capabilities for Bus Based Self-Checking Architectures

  • Authors:
  • Michele Favalli;Cecilia Metra

  • Affiliations:
  • DI, University of Ferrara, Viale Saragat, 1-44100 Ferrara, Italy. mfavalli@ing.unife.it;DEIS, University of Bologna, Viale Risorgimento, 2-40136 Bologna, Italy. cmetra@deis.unibo.it

  • Venue:
  • Journal of Electronic Testing: Theory and Applications
  • Year:
  • 2002

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Abstract

This paper proposes a distributed two-rail checker architecture which is specifically targeted to self-checking bus-based systems. The architecture makes use of a single bus line to provide error indication. With respect to conventional two-rail checkers additional diagnosing capabilities are provided. The checker is totally-self-checking with respect to stuck-at faults. It features also good self-testing properties with respect to parametric faults, such as bridgings and delay faults.