Implementation of a partially reconfigurable multi-context FPGA based on asynchronous architecture

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2 Citations (Scopus)

Abstract

This paper presents a novel architecture to increase the hardware utilization in multi-context field programmable gate arrays (MC-FPGAs). Conventional MC-FPGAs use dedicated tracks to transfer context-ID bits. As a result, hardware utilization ratio decreases, since it is very difficult to map different contexts, area efficiently. It also increases the context switching power, area and static power of the context-ID tracks. The proposed MC-FPGA uses the same wires to transfer both data and context-ID bits from cell to cell. As a result, programs can be mapped area efficiently by partitioning them into different contexts. An asynchronous multi-context logic block architecture to increase the processing speed of the multiple contexts is also proposed. The proposed MC-FPGA is fabricated using 6-metal 1-poly CMOS design rules. The data and context-ID transfer delays are measured to be 2.03ns and 2.26ns respectively. We achieved 30% processing time reduction for the SAD based correspondance search algorithm.

Original languageEnglish
Pages (from-to)539-549
Number of pages11
JournalIEICE Transactions on Electronics
VolumeE92-C
Issue number4
DOIs
Publication statusPublished - 2009 Jan 1

Keywords

  • Asynchronous FPGA
  • DPGA
  • Multi-context

ASJC Scopus subject areas

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

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