Removing overhead from high-level interfaces

  • Authors:
  • Kyle Kelley;Megan Wachs;John Stevenson;Stephen Richardson;Mark Horowitz

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • Proceedings of the 49th Annual Design Automation Conference
  • Year:
  • 2012

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Abstract

Hardware modules would be much easier to reuse if they supported generic flexible high-level interfaces. However, these interfaces are rarely used since they lead to timing and area overheads compared to a customized design. This paper describes a reachability analysis framework that identifies over-provisioning in instances of flexible design, and offers a technique for annotating this information so that modern synthesis tools can remove most of the overhead. Results are demonstrated on a variety of flexible structures, including functional blocks, programmable state machines, and latency-insensitive interfaces.