Resource-and-time-aware test strategy for configurable quaternary logic blocks

  • Authors:
  • Érika Cota;Luigi Carro;Felipe Pinto;Ricardo Reis;Marcelo Lubaszewski

  • Affiliations:
  • UFRGS, Porto Alegre, Brazil;UFRGS, Porto Alegre, Brazil;UFRGS, Porto Alegre, Brazil;UFRGS, Porto Alegre, Brazil;UFRGS, Porto Alegre, Brazil

  • Venue:
  • Proceedings of the 22nd Annual Symposium on Integrated Circuits and System Design: Chip on the Dunes
  • Year:
  • 2009

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Abstract

The use of quaternary logic has been presented as a cost-effective solution to tackle the increasing area and power consumption of million-gate systems. This paper discusses the problem of testing a configurable logic block based on quaternary logic assuming a catastrophic fault model. We then analyze a possible test strategy in terms of number of test configurations and test vectors. Our preliminary results show that, for the most common faults, the resulting test cost for this new design paradigm can be very competitive.