Hardware/Software Codesign Hardware/Software Codesign and Applications of a Power and Applications of a Power Efficient MPEG Video Efficient MPEG Video DecoderDecoder

Electrical and Computer Engineering DepartmentElectrical and Computer Engineering Department

State University of New York at Stony BrookState University of New York at Stony Brook

John ChanJohn ChanEdwin NuezEdwin Nuez

David RodriguezDavid RodriguezPritpal SinghPritpal Singh

Advisor: Professor Alex Doboli

What is Hardware/Software What is Hardware/Software Codesign?Codesign?

Degrees of FreedomDegrees of Freedom

• VoltageVoltage

• Physical CapacitancePhysical Capacitance

• ActivityActivity

Power OptimizationPower Optimization

• Circuit / LogicCircuit / LogicLogic Styles + Manipulation,Transistor Sizing, Energy Recovery

• LayoutLayoutPartitioning, Power-down, Power States

• ArchitecturalArchitecturalParallelism, Pipelining, Redundancy, Data Encoding

• AlgorithmicAlgorithmicComplexity, Concurrency, Regularity, Locality

• TechnologyTechnologyThreshold Reduction, Double Threshold

Isc

Ip

In

MPEG DecodingMPEG Decoding

ApplicationsApplications

• Low power consumptionLow power consumption

• Fast MPEG decodingFast MPEG decoding

Advantages:Advantages: What Application could What Application could

take advantage of take advantage of Codesign?Codesign?

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Principal Engineer, M.T.S.

Corporate Research & Development