Robust interfaces for mixed-timing systems with application to latency-insensitive protocols

  • Authors:
  • Tiberiu Chelcea;Steven M. Nowick

  • Affiliations:
  • Department of Computer Science, Columbia University;Department of Computer Science, Columbia University

  • Venue:
  • Proceedings of the 38th annual Design Automation Conference
  • Year:
  • 2001

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Abstract

This paper presents several low-latency mixed-timing FIFO designs that interface systems on a chip working at different speeds. The connected systems can be either synchronous or asynchronous. The design are then adapted to work between systems with very long interconnection delays, by migrating a single-clock solution by Carloni et al. (for “latency-insensitive” protocols) to mixed-timing domains. The new designs can be made arbitrarily robust with regard to metastability and interface operating speeds. Initial simulations for both latency and throughput are promising.