模块化的PICmicro中档系列单片机跳码解码器

ThisapplicationnotedescribesaKEELOQ

®

codehopping

decoderimplementedonaMicrochipMid-Range

PICmicromicrocontroller(PIC16CE624).Thesoftware

hasbeendesignedasagroupofindependentmodules

(standardassemblyincludefiles“.inc”).Forclarityand

easeofmaintenanceeachmodulecoversasingle

function.Eachmodulecanbemodifiedtoaccommodate

differentbehavior,supportadifferentmicrocontroller

(MCU),and/oradifferentsetofperipherals(memories,

timers,etc.).AN742ModularPICmicroMid-RangeMCUCodeHoppingDecoderFIGURE1:DECODERPINOUTAuthor:LucioDiJasioMicrochipTechnologyInc.LRNIN118RFINLRNOUT217NUNU316OSCINOVERVIEWMCLR415OSCOUTThisapplicationnotedescribesaKEELOQcodehoppingGND514VDD