nxp pn512 pos机硬件参考设计

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1、NXPPN512POS机硬件参考设计NXP公司的PN512是用于13.56MHz无接触通信的高度集成收发器,具有8位并行接口,SPI接口,串行UART和I2C接口,支持读写模式ISO/IEC14443A/MIFARE和FeliCa标准以及ISO/IEC14443B,卡工作模式ISO/IEC14443A/MIFARE和FeliCa标准以及NFCIP-1模式.工作电压2.6-3.5V,主要用在支付应用.本文介绍了PN512主要特性和优势,框图和多种应用模式框图,POS机参考设计OM5597/RD2663主要特性,主板和模块读板电路图以及PCB设计图.ThePN512isahighlyinte

2、gratedtransceiverICforcontactlesscommunicationat13.56MHz.ThistransceiverICutilizesanoutstandingmodulationanddemodulationconceptcompletelyintegratedfordifferentkindsofcontactlesscommunicationmethodsandprotocolsat13.56MHz.ThePN512transceiverICssupport4differentoperatingmodes•Reader/Writermodesuppor

3、tingISO/IEC14443A/MIFAREandFeliCascheme•Reader/WritermodesupportingISO/IEC14443B•CardOperationmodesupportingISO/IEC14443A/MIFAREandFeliCascheme•NFCIP-1modeEnabledinReader/WritermodeforISO/IEC14443A/MIFARE,thePN512’sinternaltransmitterpartisabletodriveareader/writerantennadesignedtocommunicatewith

4、ISO/IEC14443A/MIFAREcardsandtransponderswithoutadditionalactivecircuitry.ThereceiverpartprovidesarobustandefficientimplementationofademodulationanddecodingcircuitryforsignalsfromISO/IEC14443A/MIFAREcompatiblecardsandtransponders.ThedigitalparthandlesthecompleteISO/IEC14443Aframinganderrordetectio

5、n(Parity&CRC).ThePN512supportsMIFARE1KorMIFARE4Kemulationproducts.ThePN512supportscontactlesscommunicationusingMIFAREhighertransferspeedsupto424kbit/sinbothdirections.EnabledinReader/WritermodeforFeliCa,thePN512transceiverICsupportstheFeliCacommunicationscheme.Thereceiverpartprovidesarobustandeff

6、icientimplementationofthedemodulationanddecodingcircuitryforFeliCacodedsignals.ThedigitalparthandlestheFeliCaframinganderrordetectionlikeCRC.ThePN512supportscontactlesscommunicationusingFeliCaHighertransferspeedsupto424kbit/sinbothdirections.ThePN512supportsalllayersoftheISO/IEC14443Breader/write

7、rcommunicationscheme,givencorrectimplementationofadditionalcomponents,likeoscillator,powersupply,coiletc.andprovidedthatstandardizedprotocols,e.g.likeISO/IEC14443-4and/orISO/IEC14443Banticollisionarecorrectlyimplemente