Enhanced Reduced Pin-Count Test for Full-Scan Design

  • Authors:
  • Harald Vranken;Tom Waayers;Hervé Fleury;David Lelouvier

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ITC '01 Proceedings of the 2001 IEEE International Test Conference
  • Year:
  • 2001

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Abstract

This paper presents enhanced reduced pin-count test(E-RPCT) for low-cost test.E-RPCT is an extension oftraditional RPCT for circuits in which a large number ofdigital IC pins is multiplexed for scan.The basic conceptof E-RPCT is to provide access to the internal scan chainsvia an IEEE 1149.1 compatible boundary-scan architecture,instead of direct access via the IC pins.The boundary-scanchain performs serial/parallel conversion of testdata.E-RPCT also provides I/O wrap to test non-contactedpins.The paper presents E-RPCT for full-scandesign, as well as for full-scan core-based design.