Adaptive Frequency and Biasing Techniques for Tolerance to Dynamic Temperature-Voltage Variations and Aging

James Tschanz,Nam-Sung Kim,Saurabh Dighe,Jason Howard,Gregory Ruhl,Sriram Vanga,Siva Narendra,Yatin Hoskote,Howard Wilson,Carol Lam,Matthew Shuman,Carlos Tokunaga,Dinesh Somasekhar,Stephen Tang,David Finan,Tanay Karnik,Nitin Borkar,Nasser A. Kurd,Vivek De

San Francisco, CA（2007）

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摘要

Temperature, voltage, and current sensors monitor the operation of a TCP/IP offload accelerator engine fabricated in 90nm CMOS, and a control unit dynamically changes frequency, voltage, and body bias for optimum performance and energy efficiency. Fast response to droops and temperature changes is enabled by a multi-PLL clocking unit and on-chip body bias. Adaptive techniques are also used to compensate performance degradation due to device aging, reducing the aging guardband.

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关键词

CMOS integrated circuits,electric sensing devices,microprocessor chips,phase locked loops,temperature sensors,transport protocols,CMOS technology,TCP/IP offload accelerator,aging guardband,current sensors,device aging,dynamic adaptive biasing,performance degradation,phase locked loops,temperature sensors,voltage sensors

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