Crosstalk free coding systems to protect NoC channels against crosstalk faults

Kimia Soleimani, Ahmad Patooghy, Nasim Soltani, Lake Bu, Michel A. Kinsy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Reliability of modern multicore and many-core chips is tightly coupled with the reliability of their on-chip networks. Communication channels in current Network-on-Chips (NoCs) are extremely susceptible to crosstalk faults. In this work, we propose a set of rules for generating classes of crosstalk free coding systems to protect communication channels in NoCs against crosstalk faults. Codewords generated through these rules are free of '101' and '010' bit patterns, which are the main sources of crosstalk faults in NoC communication channels. The proposed rules determine: (1) the weights of different bit positions in a coding system to reach crosstalk free codings, and (2) how the coding might be utilized in an NoC to prevent crosstalk generating bit patterns in NoC channels. Using the proposed set of rules, designers can obtain coding systems which are crosstalk free for any widths of communication channels. Compared to conventional Forbidden Pattern Free (FPF) systems, the proposed methodology is able to provide unique representation to any input values at the lower bound of the codeword lengths. Analyses show that the proposed rules, along with the proposed encoding/decoding mechanisms, are effective in preventing forbidden pattern coding systems for network-on-chips of any arbitrary channel width.

Original languageEnglish (US)
Title of host publicationProceedings - 35th IEEE International Conference on Computer Design, ICCD 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages385-390
Number of pages6
ISBN (Electronic)9781538622544
DOIs
StatePublished - Nov 22 2017
Externally publishedYes
Event35th IEEE International Conference on Computer Design, ICCD 2017 - Boston, United States
Duration: Nov 5 2017Nov 8 2017

Publication series

NameProceedings - 35th IEEE International Conference on Computer Design, ICCD 2017

Conference

Conference35th IEEE International Conference on Computer Design, ICCD 2017
Country/TerritoryUnited States
CityBoston
Period11/5/1711/8/17

Keywords

  • Crosstalk Fault
  • Crosstalk Free Coding
  • Fibonacci Coding
  • Forbidden Pattern Free
  • Network on Chips

ASJC Scopus subject areas

  • Hardware and Architecture

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