A high-density optically reconfigurable gate array using dynamic method

Minoru Watanabe, Fuminori Kobayashi

Research output: Chapter in Book/Report/Conference proceedingChapter

21 Citations (Scopus)

Abstract

A high-density optically reconfigurable gate array (ORGA) is proposed to improve the gate density of conventional ORGAs, which are a type of Field Programmable Gate Array (FPGA). However, unlike FPGAs, an ORGA is reconfigured optically with external optical memories. A conventional ORGA has many programming elements, just as FPGAs do. One programming element consists of: a photodiode to detect an optical reconfiguration signal; a latch, a flip-flop or a bit of memory to temporarily store the reconfiguration bit; and some transistors. Among those components, the latch, flip-flop, or memory occupies a large implementation area on a typical VLSI chip; it prevents realization of a high-gate-density ORGA. This paper presents a high-density ORGA structure that eliminates latches, flip-flops, and memory using a dynamic method and a design of an ORGA-VLSI chip with four optically reconfigurable logic blocks, five optically reconfigurable switching matrices, and four optical reconfigurable I/O blocks including four I/O bits. It uses 0.35 μℳ 3-Metal CMOS process technology. This study also includes some experimental results.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsJurgen Becker, Marco Platzner, Serge Vernalde
PublisherSpringer Verlag
Pages261-269
Number of pages9
ISBN (Print)3540229892, 9783540229896
DOIs
Publication statusPublished - 2004
Externally publishedYes

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3203
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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