标签: pic16c56

ThisapplicationnotefullydescribestheworkingofacodehoppingdecoderimplementedonaMicrochipPIC16C56microcontroller.BackgroundisgivenonthevariousKEELOQ®codehoppingencodersthatcanbeusedwiththedecoder,thedecoderhardwaredescribed,anddescriptionsofthevarioussoftwaremodulescom-prisingthesystem.Thesoftwarecanbeusedtoimple-mentastand-alonedecoderorintegratedwithfullfunctionsecuritysystems.ThedecodersupportstheMicrochipHCS200,HCS201,HCS300,HCS301,HCS360,HCS361andHCS410KEELOQCodeHoppingEncoders.AN661CodeHoppingDecoderUsingaPIC16C56KEYFEATURESAuthor:StevenDawsonStand-alonedecoderMicrochipTechnologyInc.CompatiblewithMicrochipHCS200,HCS201,HCS300,HCS301,HCS360,HCS361andHCS410encodersOVERVIEWAutomaticbaudratedetectionAutomaticencodertypedetectionThisapplicationnotefullydescribestheworkingofaFourfu……

Thisdocumentdescribesasecuretranspondersys-tem.Thesystemissuitableforuseinsecurityapplica-tionssuchascars,motorbikes,andscooters(two-wheelers).Microchip’ssecureHCS410KEELOQ®codehoppingtransponderisused.Thedecoderisimple-mentedonaMicrochipPIC16C56microcontroller.Thesoftwarecanbeusedtoimplementastand-alonedecoderorcanbeintegratedintoasecuritysystem.Themaximumoperatingrangeofthisparticularappli-cationcircuitis25millimeters(oneinch).AN675KEELOQHCS410TransponderDecoderUsingaPIC16C56Authors:VivienDelport,MikeSonnabendPINFUNCTIONSDMicrochipTechnologyInc.INTRODUCTIONLRN_IN118NCLRN_OUT217IMMOBThisdocumentdescribesasecuretranspondersys-tem.Thesystemissuitableforuseinsecurityapplica-NC316OSC_INtionssuchascars,motorbikes,andscooters(two-wheelers).Microchip’ssecureHCS410KEELOQcodePIC16……