Arithmetic Pattern Generators for Built-In Self-Test

  • Authors:
  • Albrecht P. Stroele

  • Affiliations:
  • -

  • Venue:
  • ICCD '96 Proceedings of the 1996 International Conference on Computer Design, VLSI in Computers and Processors
  • Year:
  • 1996

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Abstract

Adders, subtracters, ALUs, and multipliers, which are available in many data paths, can be utilized to generate test patterns for built-in self-test. In this paper guidelines for the design of arithmetic pattern generators are developed. Experimental results show that the generated patterns achieve similar fault coverage as pseudo-random sequences and require about the same test length. Hence, instead of adding LFSR-based test registers, arithmetic pattern generators can be used, and performance degradation is avoided.