Crosstalk-noise-aware bus coding with low-power ground-gated repeaters

H. Jiao, R. Wang, Y. He

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
118 Downloads (Pure)

Abstract

Crosstalk noise is one of the serious reliability concerns in nanoscale integrated circuits. Repeater insertion together with shielding wires is a typical method to suppress crosstalk noise associated with global data bus. A new crosstalk-noise-aware bus coding scheme with ground-gated repeaters is proposed in this paper to minimize the routing overhead as well as power consumption of data bus systems. A subset of 4-to-6 crosstalk-noise-aware codes is selected to minimize the number of simultaneous data transitions. The routing overhead is reduced by 12.31% with the new bus coding scheme compared with the conventional data bus with shielding wires. Furthermore, the leakage power and worst-case active power consumptions are reduced by 12.5% and 18.26%, respectively, with the new crosstalk-noise-aware data bus system as compared with the previously published bus coding system in an industrial 40-nm CMOS technology.

Original languageEnglish
Pages (from-to)280-289
Number of pages10
JournalInternational Journal of Circuit Theory and Applications
Volume46
Issue number2
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • active power
  • global interconnect
  • leakage power
  • routing overhead
  • sleep transistor

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