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PivotPoint: clockless crossbar switch for high-performance embedded systems | IEEE Journals & Magazine | IEEE Xplore

PivotPoint: clockless crossbar switch for high-performance embedded systems


Abstract:

PivotPoint is a blended synchronous-asynchronous system on chip (SoC). That is, designers employed synchronous and asynchronous methodologies in the design, using whichev...Show More

Abstract:

PivotPoint is a blended synchronous-asynchronous system on chip (SoC). That is, designers employed synchronous and asynchronous methodologies in the design, using whichever was most advantageous for a given region of the circuit. A generally available commercial product, PivotPoint primarily contains high-performance asynchronous logic. Although the technology's promise motivated the design effort, many architecture and methodology innovations occurred along the way in creating a commercially viable clockless IC. Synchronous systems dedicate a significant percentage of the clock period to margin during which there is no useful logical computation. Design margin can be the largest; it is the difference between the worst-case paths in the clock domain, which define the clock period, and the average-case paths. Shrinking this difference requires considerable engineering and/or methodology work.
Published in: IEEE Micro ( Volume: 24, Issue: 2, March-April 2004)
Page(s): 48 - 59
Date of Publication: 02 August 2004

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