1 Scope
This part of ISO/IEC 14443 describes:
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— polling for proximity cards or objects (PICCs) entering the field of a proximity coupling device (PCD);
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— the byte format, the frames and timing used during the initial phase of communication between PCDs and PICCs;
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— the initial Request and Answer to Request command content;
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— methods to detect and communicate with one PICC among several PICCs (anticollision);
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— other parameters required to initialize communications between a PICC and PCD;
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— optional means to ease and speed up the selection of one PICC among several PICCs based on application criteria.
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[A3_start]— optional capability to allow a device to alternate between the functions of a PICC and a PCD to communicate with a PCD or a PICC, respectively. A device which implements this capability is called a PXD and shall comply with all PXD requirements in this standard.[A3_end]
Protocol and commands used by higher layers and by applications and which are used after the initial phase are described in ISO/IEC 14443‑4.
[A3_start]This part of ISO/IEC 14443 is applicable to PICCs of Type A and of Type B and PCDs (as described in ISO/IEC 14443‑2) and to PXDs.[A3_end]
NOTE 1 Part of the timing of data communication is defined in ISO/IEC 14443‑2.
NOTE 2 Test methods for this International Standard are defined in ISO/IEC 10373‑6.