Universal test complexity of field-programmable gate arrays

  • Authors:
  • T. Inoue;H. Fujiwara;H. Michinishi;T. Yokohira;T. Okamoto

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ATS '95 Proceedings of the 4th Asian Test Symposium
  • Year:
  • 1995

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Abstract

A field-programmable gate array (FPGA) can implement arbitrary logic circuits in the field. In this paper we consider universal test such that when applied to an unprogrammed FPGA, it ensures that all the corresponding programmed logic circuits on the FPGA are fault-free. We focus on testing for look-up tables in FPGAs, and present two types of programming schemes; sequential loading and random access loading. Then we show test procedures for the FPGAs with these programming schemes and their test complexities. In order to make the test complexity for FPGAs independent of the array size of the FPGAs, we propose a programming scheme called block-sliced loading, which makes FPGAs C-testable.