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12.3.4.8 Extend ID (default 0) If Extended ID is set, the reader extends the serial number of tags with additional bytes. ISO 14443 A tags (5/8/11 bytes transmitted) Tag type Serial number 1 byte 4 / 7 / 10 bytes Figure 12-6: ISO 14443 A Extended Serial number The tag type byte indicates the type of cascade level. Tag type Description 00h Cascade level 1 transponder 01h Cascade level 2 transponder 02h Cascade level 3 transponder Figure 12-7: ISO 14443 A tag type ISO 14443 B tags (12 bytes transmitted) Serial number Application data Protocol info CID 4 bytes 4 bytes 3 bytes 1 byte Figure 12-8: ISO 14443 B Extended Serial number For detailed description of Application Data, Protocol Info and CID, refer to the ISO 14443 documentation [1].
