Implicit test generation for behavioral VHDL models

  • Authors:
  • Fabrizio Ferrandi;Franco Fummi;Donatella Sciuto

  • Affiliations:
  • -;-;-

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

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Abstract

This paper proposes a behavioral-level test patterngeneration algorithm for behavioral VHDL descriptions.The proposed approach is based on the comparison between the implicit description of the fault-free behaviorand the faulty behavior, obtained through a new behavioral fault model. The paper will experimentally showthat the test patterns generated at the behavioral levelprovide a very high stuck-at fault coverage when applied to different gate-level implementations of the givenVHDL behavioral specification. Gate-level ATPGs applied on these same circuits obtain lower fault coverage,in particular when considering circuits with hard to detect faults.