Interconnect-fault-resilient delay-insensitive asynchronous communication link based on current-flow monitoring

Naoya Onizawa, Atsushi Matsumoto, Takahiro Hanyu

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

1 Citation (Scopus)

Abstract

Delay-insensitive asynchronous on-chip communication links are a key element to realize a highly reliable asynchronous Network-on-Chip system. However, even a single permanent fault, such as an interconnect fault, causes a deadlock state in the system. This paper presents an interconnect-fault- resilient delay-insensitive asynchronous communication link based on current-flow monitoring. Since current flow upon an interconnect is cut off by an open fault in the interconnect, the current is fed back to a transmitter, which increases a feedback current monotonically. Monitoring the feedback current makes it possible to detect the interconnect fault with delay insensitivity. The proposed link is evaluated by a 0.13μm CMOS technology with a Triple Modular Redundancy (TMR)-based asynchronous communication link which is resilient to the interconnect fault without the delay insensitivity. As a result, the energy consumption and the number of wires of the proposed link are reduced to 57% and 33%, respectively, in comparison with those of the conventional one.

Original languageEnglish
Title of host publicationProceedings - Design, Automation and Test in Europe Conference and Exhibition, DATE 2011
Pages776-781
Number of pages6
Publication statusPublished - 2011 May 31
Event14th Design, Automation and Test in Europe Conference and Exhibition, DATE 2011 - Grenoble, France
Duration: 2011 Mar 142011 Mar 18

Publication series

NameProceedings -Design, Automation and Test in Europe, DATE
ISSN (Print)1530-1591

Other

Other14th Design, Automation and Test in Europe Conference and Exhibition, DATE 2011
CountryFrance
CityGrenoble
Period11/3/1411/3/18

ASJC Scopus subject areas

  • Engineering(all)

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