Low Power Chip Interface Based on Bus Data Encoding with Adaptive Code-Book Method

  • Authors:
  • Satoshi Komatsu;Makoto Ikeda;Kunihiro Asada

  • Affiliations:
  • -;-;-

  • Venue:
  • GLS '99 Proceedings of the Ninth Great Lakes Symposium on VLSI
  • Year:
  • 1999

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Abstract

An adaptive code-book encoding is proposed, which is applicable for low power chip-interface. In this method, data transition activity on bus signals is lowered by data encoding similar to the vector quantization (VQ). Transferred data on bus are the quantized vector numbers along with the Hamming difference between the original data and the quantized vector. A computer simulation and measurement results show that this encoding method is effective for low power chip-interface especially for the deep sub-micron VLSIs.