PIC单片机的中档跳码解码器

Thisapplicationnotedescribestheworkingofa

KEELOQ

®

codehoppingdecoderimplementedona

MicrochipMidrangeMCUs(PIC16C6X,PIC16C7X,

PIC16C62X)Thesoftwarecanbeusedtoimplementa

standalonedecoderorbeintegratedwiththeuser

application.ThedecodersupportstheMicrochip’s

HCS200,HCS201,HCS300,HCS301,HCS360,and

HCS361KEELOQhoppingcodeencoders.Thedecoder

supportsnormalandsecurelearning.Twomanufactur-

erscodesallowdifferentmanufacturerstoshareapub-

lickey,butretaintheirownprivatekeys.AN672PICMCUMid-RangeCodeHoppingDecoderAuthor:VivienDelportFIGURE1:MICROCHIPMIDRANGEMicrochipTechnologyInc.DECODEROVERVIEWLRNIN118RFINThisapplicationnotedescribestheworkingofaLRNOUT217NCKEELOQcodehoppingdecoderimplementedonaNC316OSCINMicrochipMidrangeMCUs(PIC16C6X,PIC16C7X,