On the generation of area-time optimal testable adders

  • Authors:
  • B. Becker;R. Drechsler;P. Molitor

  • Affiliations:
  • Dept. of Comput. Sci., Freiburg Univ.;-;-

  • Venue:
  • IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
  • Year:
  • 2006

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Abstract

We present a performance driven generator for integer adders which has the following interesting feature: The generator is parametrized in the operands' bitlength n, the delay of the addition tn, and the fault model FM. FM may in particular be chosen as the classical stuck-at fault model, the cellular fault model or the robust path delay fault model. The output of the generator is a performance oriented conditional sum type adder, i.e., an area-minimal n-bit adder of the “conditional sum type” with delay ⩽tn (if it exists) together with a small complete test set with respect to the chosen fault model FM