A simultaneous bus orientation and bused pin flipping algorithm

  • Authors:
  • Fan Mo;Robert K. Brayton

  • Affiliations:
  • Synplicity;University of California at Berkeley

  • Venue:
  • Proceedings of the 2007 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 2007

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Abstract

The orientation of a bus is defined as the direction from the Least Significant Bit (LSB) to the Most Significant Bit (MSB). Bused pin flipping is a property that allows several bused pins to flip without changing the system functionality. In this paper a simultaneous bus orientation and bused pin flipping algorithm is presented. The algorithm can be integrated into a bus-centric floorplanner targeting bus-rich designs such as microprocessors. Experimental results show that a floorplanner enhanced by the algorithm produces high quality floorplans in terms of bus routing.