Leveraging rule-based designs for automatic power domain partitioning

  • Authors:
  • Abhinav Agarwal; Arvind

  • Affiliations:
  • CSAIL, Massachusetts Institute of Technology, Cambridge, MA;CSAIL, Massachusetts Institute of Technology, Cambridge, MA

  • Venue:
  • Proceedings of the International Conference on Computer-Aided Design
  • Year:
  • 2013

Quantified Score

Hi-index 0.00

Visualization

Abstract

Leakage power reduction through power gating requires considerable design and verification effort. We present a scheme which uses high-level design description to automatically generate a collection of fine-grain power domains and associated control signals. We also describe a method of collecting the dynamic activity characteristics of a domain, viz. total inactivity and frequency of inactive-active transitions, which are necessary to decide the domain's suitability for power gating. Our automated power-gating technique provides power savings without exacerbating the verification problem because the power domains are correct by construction. We illustrate our technique using two wireless decoder designs.