A fine-grained dependable optically reconfigurable gate array as a multi-soft-core processor platform

Retsu Moriwaki, Minoru Watanabe

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

Abstract

Optically reconfigurable gate arrays (ORGAs) have been developed as high-speed reconfigurable fine grained gate arrays that can accommodate implementation of a multi-soft-core processor. An ORGA's programmable gate array can be reconfigured in nanosecond-order with one of more than 256 reconfiguration contexts. Its high-speed dynamic reconfiguration capability is suitable for dynamically changing the functions of a multi-core processor. In addition to that beneficial feature, ORGAs have high dependability against space radiation since the ORGA can be reconfigured with an error-included configuration context. In this paper, while maintaining its highly dependable capability, a more advanced dependability-increasing technique using a negative logic implementation is proposed. The dependability of data on a holographic memory depends on the number of bright bits or the binary state H included in a configuration context. If the number of bright bits in a configuration context can be decreased, then the configuration dependability can also be increased. The proposed optical configuration dependability-increasing technique of a negative logic implementation can decrease the number of bright bits in a configuration context. This technique can raise the ORGA's configuration dependability level even further. This paper describes an experimental demonstration of the usefulness of the proposed technique.

Original languageEnglish
Title of host publicationProceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013
PublisherIEEE Computer Society
Pages7-12
Number of pages6
ISBN (Print)9780768550862
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013 - Tokyo, Japan
Duration: Sep 26 2013Sep 28 2013

Publication series

NameProceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013

Conference

Conference2013 IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013
Country/TerritoryJapan
CityTokyo
Period9/26/139/28/13

Keywords

  • Dependable systems
  • FPGA
  • ORGA

ASJC Scopus subject areas

  • Hardware and Architecture

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