EfficientImplementationofReal-ValuedFIRFilters
ontheTMS320C55xDSP
DavidM.AlterDSPApplicationsCSemiconductorGroup
ABSTRACT
Real-valueddigitalfiniteimpulseresponse(FIR)filtersformthebasisfornumerousdigital
signalprocessing(DSP)applications.Efficientimplementationofthesefiltersonthe
TMS320C55xxEDSPfamilyrequiresspecializedalgorithmstructuringthatcantake
advantageofthedualon-chiphardwaremultiplierunits.Thisapplicationreportpresents
implementationsbestsuitedforblockFIRandsingle-sampleFIRfilters.Exampleassembly
codeisalsoprovided.
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