A dynamic differential reconfiguration circuit for optically differential reconfigurable gate arrays

Minoru Watanabe, Ryuji Fujime, Fuminori Kobayashi

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

4 Citations (Scopus)

Abstract

An Optically Differential Reconfigurable Gate Array VLSI (ODRGA-VLSI) presents the advantage that it can be reconfigured more rapidly than other optically reconfigurable gate arrays (ORGAs). In an ORGA, reconfiguration contexts are stored in a holographic memory, which is addressed by a laser array, and read as light. The reconfiguration speed is proportional to the light intensity received in each photodiode on an ORGA-VLSI. In addition, the light intensity from a holographic memory is inversely proportional to the number of its lighting bits corresponding to bits of '1' from the diffraction characteristic of a holographic memory. Therefore, the bit-by-bit programmability of ODRGA-VLSI allows more rapid reconfiguration than for other ORGAs because the light power can be focused onto a reprogrammed area instead of a much larger area. However, the reconfiguration circuit to support bit-by-bit reconfiguration occupies a large implementation area of an ODRGA-VLSI chip. Therefore, a new dynamic reconfiguration circuit has been introduced into ODRGA-VLSIs to reduce the implementation area to realize a high gate-count ODRGA-VLSI. In this paper, the VLSI implementation of the dynamic reconfiguration circuit is shown using 0.35 μm CMOS process technology; a comparison to results from other optical reconfiguration circuits is presented.

Original languageEnglish
Title of host publicationProceedings of the 2006 49th Midwest Symposium on Circuits and Systems, MWSCAS'06
Pages94-98
Number of pages5
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event2006 49th Midwest Symposium on Circuits and Systems, MWSCAS'06 - San Juan, Puerto Rico
Duration: Aug 6 2006Aug 9 2007

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2
ISSN (Print)1548-3746

Conference

Conference2006 49th Midwest Symposium on Circuits and Systems, MWSCAS'06
Country/TerritoryPuerto Rico
CitySan Juan
Period8/6/068/9/07

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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