A bus architecture for crosstalk elimination in high performance processor design

  • Authors:
  • Wen-Wen Hsieh;Po-Yuan Chen;TingTing Hwang

  • Affiliations:
  • National Tsing Hua University HsinChu, Taiwan, R.O.C;National Tsing Hua University HsinChu, Taiwan, R.O.C;National Tsing Hua University HsinChu, Taiwan, R.O.C

  • Venue:
  • CODES+ISSS '06 Proceedings of the 4th international conference on Hardware/software codesign and system synthesis
  • Year:
  • 2006

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Abstract

In deep sub-micron technology, the crosstalk effect between adjacent wires has become an important issue, especially between long on-chip buses. This effect leads to the increase in delay, in power consumption, and in worst case, to incorrect result. In this paper, we propose a deassembler/assembler structure to eliminate undesirable crosstalk effect on bus transmission. By taking advantage of the prefetch process where the instruction/data fetch rate is always higher than instruction/data commit rate in high performance processors, the proposed method would hardly reduce the performance. In addition, the required number of extra bus wires is only 7 as compared with 85 needed in [6] when the bus width is 128 bits.