AS ISO/IEC 14443.4:2022 identically adopts ISO/IEC 14443 4:2018, which specifies a half-duplex block transmission protocol featuring the special needs of a contactless environment and defines the activation and deactivation sequence of the protocol.
AS ISO/IEC 14443.4:2022
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Cards and security devices for personal identification – Contactless proximity objects, Part 4: Transmission protocol
Category: AS