Delay constrained register transfer level dynamic power estimation

  • Authors:
  • Sriram Sambamurthy;Jacob A. Abraham;Raghuram S. Tupuri

  • Affiliations:
  • Computer Engineering Research Center, The University of Texas at Austin;Computer Engineering Research Center, The University of Texas at Austin;Advanced Micro Devices Inc.

  • Venue:
  • PATMOS'06 Proceedings of the 16th international conference on Integrated Circuit and System Design: power and Timing Modeling, Optimization and Simulation
  • Year:
  • 2006

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Abstract

We present a top-down technique to estimate the average dynamic power consumption of combinational circuits at the register transfer level. The technique also captures the power-delay characteristics of a given combinational circuit. It uses the principles of logical effort to estimate the variation in capacitance, and a combination of existing techniques to estimate the variation in activity, over the delay curve of operation of the circuit. The technique does not involve post-estimation characterization and is applicable across technology nodes. The estimated power obtained from our method shows good accuracy with respect to the power obtained from a commercial gate-level power estimation tool.