MOUSETRAP: Ultra-High-Speed Transition-Signaling Asynchronous Pipelines

  • Authors:
  • Affiliations:
  • Venue:
  • ICCD '01 Proceedings of the International Conference on Computer Design: VLSI in Computers & Processors
  • Year:
  • 2001

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Abstract

Abstract: A new asynchronous pipeline design is introduced for high-speed applications. The pipeline uses simple transparent latches in its datapath, and small latch controllers consisting of only a single gate per pipeline stage. This simple stage structure is combined with an efficient transition-signaling protocol between stages. Initial pre-layout HSPICE simulations of a 10-stage FIFO on a 16-bit wide datapath indicate throughput of 3.51 GigaHertz in 0.25µ CMOS, using a conservative process. This performance is competitive even with that of wave pipelines [25, 11, 14], with-out the accompanying problems of complex timing and much de-sign effort. Additionally, the new pipeline gracefully and robustly adapts to variable-speed environments. The stage implementations are extended to fork and join structures, to handle more complex system architectures.