Generating interconnect models from prototype hardware

  • Authors:
  • Frank W. Angelotti

  • Affiliations:
  • -

  • Venue:
  • ITC '98 Proceedings of the 1998 IEEE International Test Conference
  • Year:
  • 1998

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Abstract

With widespread acceptance of the IEEE 1149.1 Standard,structured interconnect testing has become extremelyimportant at the MCM, PWB and system levels. In the conventionalparadigm, an interconnect topology model of thesystem under test is extracted from design information.From this model, interconnect test patterns can be generatedby means of well understood algorithms. We demonstratea new approach whereby the interconnect topologymodel is extracted by directly probing a hardware prototypeof the system under test. This Golden Model can thenbe used to generate interconnect tests for other systemswhose interconnect topology matches that of the prototype.Algorithms for this Golden Model extraction are presentedand analyzed, empirical results are given, and the benefitsand drawbacks of the approach are discussed.