协议技术规范(Protocol Technical Specification );数据交换格式技术规范(Data Exchange FormatTechnical Specification); NFC标签类型技术规范(NFC Forum Tag TypeTechnical Specifications ) ; 记录类型定义技术规范(Record Type Definitionf Technical Specifications); 参考应用技术规范(Reference Application Technical Specifications )。 来自：https://nfc-forum.org/our-work/specification-releases/specifications/nfc-forum-technical-specifications/#protocol

NFC P2P 的命令层协议 NFCIP-1和NFCIP-2