Augmented disjoint switch boxes for FPGAs

  • Authors:
  • Hongbing Fan;Yu-Liang Wu;Catherine L. Zhou

  • Affiliations:
  • Wilfrid Laurier University, Waterloo, ON Canada;The Chinese University of Hong Kong, Shatin, NT Hong Kong;The Chinese University of Hong Kong, Shatin, NT Hong Kong

  • Venue:
  • WISICT '05 Proceedings of the 4th international symposium on Information and communication technologies
  • Year:
  • 2005

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Abstract

Disjoint switch boxes have been used in island-style Field Programmable Gate Arrays (FPGAs) such as Xilinx series FPGAs. However, a disjoint switch box is neither hyper-universal (routable for every set of multi-pin net routing requirements, nor universal (routable for every set of 2-pin net routing requirements). In this paper we present a new type of hyper-universal switch box designs, which is constructed from a disjointed switch box by adding a few switches. This type of switch boxes can be easily fabricated and adopted to the existing FPGA designs, and result in a significant improvement on routability.