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Munich, Germany
Mar. 9, 1999 to Mar. 12, 1999
ISBN: 0-7695-0078-1
pp: 22
Enoch Hwang , University of California at Riverside
Frank Vahid , University of California at Riverside
Yu-Chin Hsu , University of California at Riverside
ABSTRACT
Previous work has shown that sizable power reductions can be achieved by shutting down a system's sub-circuits when they are not needed. However, these shutdown techniques focus on shutting down only portions of the controller or the datapath of a single custom hardware processor. We propose a higher level shutdown technique that considers both the controller and datapath simultaneously; in particular, we partition a processor into multiple simpler mutually-exclusive communicating processors, and then shut down the inactive processors (i.e., the inactive controller/datapath pairs). Power reduction is accomplished because only one smaller processor is active at a time. In addition to power reduction, functional partitioning also provides solutions to a variety of synthesis problems and does not require the modification of the synthesis tool. We present results showing that this FSMD functional partitioning technique can reduce power, on average, 42% over unoptimized systems.
CITATION
Enoch Hwang, Frank Vahid, Yu-Chin Hsu, "FSMD Functional Partitioning for Low Power", DATE, 1999, Design, Automation & Test in Europe Conference & Exhibition, Design, Automation & Test in Europe Conference & Exhibition 1999, pp. 22, doi:10.1109/DATE.1999.761092
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