Application specific NoC design

  • Authors:
  • Luca Benini

  • Affiliations:
  • DEIS Universitá di Bologna

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe: Proceedings
  • Year:
  • 2006

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Abstract

Scalable Networks on Chips (NoCs) are needed to match the ever-increasing communication demands of large-scale Multi-Processor Systems-on-chip (MPSoCs) for high-end wireless communications applications. The heterogeneous nature of on-chip cores, and the energy efficiency requirements typical of wireless communications call for application-specific NoCs which eliminate much of the overheads connected with general-purpose communication architectures. However, application-specific NoCs must be supported by adequate design flows to reduce design time and effort.In this paper we survey the main challenges in application-specific NoC design, and we outline a complete NoC design flow and methodology. A case study on a high complexity SoC demonstrates that it is indeed possible to generate an application-specific NoC from a high level specification in a few hours. Comparison with a hand-tuned solution shows that the automatically generated one is very competitive from the area, performance and power viewpoint, while design time is reduced from days to hours.