Design of multi-mode application-specific cores based on high-level synthesis

  • Authors:
  • Emmanuel Casseau;Bertrand Le Gal

  • Affiliations:
  • French National Institute for Research in Computer Science and Control, IRISA/ INRIA, University of Rennes 1, Lannion, France;IMS Laboratory, CNRS UMR 5218, Institut Polytechnique de Bordeaux Talence, France

  • Venue:
  • Integration, the VLSI Journal
  • Year:
  • 2012

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Abstract

In a mobile society, more and more devices need to continuously adapt to changing environments. Such mode switches can be smoothly done in software using a general purpose processor or a digital signal processor. However hardware cores only can cope with both throughput and power consumption constraints. Reconfigurable hardware platforms provided by FPGA devices offer partial reconfiguration at runtime. However they require too long reconfiguration times and they cannot satisfy mobile device power consumption requirements. In this article we propose a methodology to map selected groups of DSP tasks to multi-mode cores using conventional hardware technologies.