HD2BIST: a Hierarchical Framework for BIST Scheduling, Data patterns delivering and diagnosis in SoCs

  • Authors:
  • Alfredo BENSO;Silvia CHIUSANO;Stefano DI CARLO;Paolo PRINETTO;Fabio RICCIATO

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

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Abstract

This paper proposes HD2BIST, a complete hierarchicalframework for BIST scheduling, data patterns delivering,and diagnosis of a complex system including embeddedcoreswith different test requirements as Full Scan cores,Partial Scan cores, or BIST-ready cores. The main goal ofHD2BIST is to maximize and simplify the reuse of thebuilt-in test architectures, giving the chip designer thehighest flexibility in planning the overall SoC teststrategy. HD2BIST defines a Test Access Method (TAM)able to provide a direct "virtual" access to each core ofthe system, and can be conceptually considered as apowerful complement to the P1500 standard, whose maintarget is to make the test interface of each coreindependent from the vendor.