Designing Asynchronous Circuits Using Null Convention Logic (Ncl) (Synthesis Lectures on Digital Circuits and Systems)

by Scott Smith and Jia Di

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Book cover for Designing Asynchronous Circuits Using Null Convention Logic (Ncl)

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Designing Asynchronous Circuits using NULL Convention Logic (NCL) begins with an introduction to asynchronous (clockless) logic in general, and then focuses on delay-insensitive asynchronous logic design using the NCL paradigm. The book details design of input-complete and observable dual-rail and quad-rail combinational circuits, and then discusses implementation of sequential circuits, which require datapath feedback. Next, throughput optimization techniques are presented, including pipelining, embedding registration, early completion, and NULL cycle reduction. Subsequently, low-power design techniques, such as wavefront steering and Multi-Threshold CMOS (MTCMOS) for NCL, are discussed. The book culminates with a comprehensive design example of an optimized Greatest Common Divisor circuit. Readers should have prior knowledge of basic logic design concepts, such as Boolean algebra and Karnaugh maps. After studying this book, readers should have a good understanding of the differences between asynchronous and synchronous circuits, and should be able to design arbitrary NCL circuits, optimized for area, throughput, and power.
  • ISBN10 1598299824
  • ISBN13 9781598299823
  • Publish Date 8 August 2009 (first published 23 July 2009)
  • Publish Status Temporarily Withdrawn
  • Imprint Morgan & Claypool
  • Format eBook
  • Pages 96
  • Language English