标签: pic24f24h

ThisapplicationnotedescribesthemethodologytousetheParallelMasterPort(PMP)moduletointerfacewithexternaldatamemory;eitherexternalFlashorexternalRAM.ThisapplicationnotealsoliststheAPIsanddescribeshowtoimplementdifferenttypesofinterfaces.UsingthePMPmodule,thememorydeviceswith64Klocations(KbytesorKwords)canbeinterfacedwithnoextraI/Osandsoftware.Thisapplicationnotedescribeshowtointerfacethememorydeviceswithmorethan64KlocationsusingsomeI/OpinsandprovidestherequiredAPIs.Thisapplicationnotedescribesthefollowingtopics:•“ExternalDataMemoryInterfaceOverview”•“FunctionalImplementation”•“ExpansionOfExternalMemory”•“ReferenceCode”AN1210UsingExternalDataMemorywithPIC24F/24H/dsPIC33FDevicesAuthor:VidyadharVivekanandaSignalsRequiredforInterfacingMemoryMicrochipTechnologyInc.DevicesTable1providesthesignalsrequiredtointerfaceINTRODUCTIONdifferenttypesofmemorydevices.ThisapplicationnotedescribesthemethodologytousetheParallelMasterPort(PMP)moduletointerfacewithTABLE1:TYPICALMEMORYDEVICEexternaldatamemory;eitherexternalFlashorexternalINTE……