Technology mapping for large complex PLDs

  • Authors:
  • Jason Helge Anderson;Stephen Dean Brown

  • Affiliations:
  • Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, Canada M5S 3G4;Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, Canada M5S 3G4

  • Venue:
  • DAC '98 Proceedings of the 35th annual Design Automation Conference
  • Year:
  • 1998

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Abstract

In this paper we present a new technology mapping algorithm for use with complex PLDs (CPLDs), which consists of a large number of PLA-style logic blocks. Although the traditional synthesis approach for such devices uses two-level minimization, the complexity of recently-produced CPLDs has resulted in a trend toward multi-level synthesis. We describe an approach that allows existing multi-level synthesis techniques [13] to be adapted to produce circuits that are well-suited for implementation in CPLDs. Our algorithm produces circuits that require up to 90% fewer logic blocks than the circuits produced by a recently-published algorithm.