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Lecture 9: Digital Signal Processors: Applications and ...

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1Kurt KeutzerLecture 9: Digital Signal Processors: Applications and ArchitecturesPrepared by: Professor Kurt KeutzerComputer Science 252, Spring 2000With contributions from:Dr. Jeff Bier, BDTI; Dr. Brock Barton, TI; Prof. Bob Brodersen, Prof. David Patterson 2Kurt KeutzerProcessor ApplicationsGeneral Purpose - high performance Pentiums, Alpha s, SPARC Used for general purpose software Heavy weight OS - UNIX, NT Workstations, PC sEmbedded processors and processor cores ARM, 486SX, hitachi SH7000, NEC V800 Single program Lightweight, often realtime OS DSP support Cellular phones, consumer electronics ( CD players) Microcontrollers Extremely cost sensitive Small word size - 8 bit common Highest volume processors by far Automobiles, toasters, thermostats, ... IncreasingCostIncreasingvolume3Kurt KeutzerProcessor Markets$30B$ $ $10B/33%8-bitmicro16-bitmicroDSP32-bitmi cro$ $ bit DSP4Kurt KeutzerThe Processor Design SpaceCostPerformanceMicroprocessorsPerfo rmance iseverything& Software rulesEmbeddedprocessorsMicrocontrollersC ost is everythingApplication specific architecturesfor performance5Kurt KeutzerMarket for DSP ProductsMixed/SignalAnalogDSPDSP is the fastest growing segment of the semiconductor market6Kurt KeutzerDSP ApplicationsAudio Applications MPEG Audio Portable audioDigital camerasWireless Cellular telephones Base stationNetworking Cable modems ADSL VDSL7Kurt KeutzerAnother Look at DSP ApplicationsHigh-end Wireless Base Station.

2 Kurt Keutzer Processor Applications General Purpose - high performance Pentiums, Alpha’s, SPARC Used for general purpose software Heavy weight OS - UNIX, NT Workstations, PC’s Embedded processors and processor cores ARM, 486SX, Hitachi SH7000, NEC V800 Single program Lightweight, often realtime OS DSP support Cellular phones, consumer electronics …

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