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A9212A

13.56MHz RFID TAG IC

AMIC Technology 

Ver 1.0

RFID Tag IC Command and Response

A9212-A

13.56MHz RFID TAG IC

All commands listed above are described in details in ISO/IEC15693-3 documents. Some of the

frequent used commands are discussed here for quick reference.

Protocol concept

A9212-A RFID tag IC follows ISO-15693 standard’s simplex communication protocol scheme.

Reader needs to issue appropriate command before A9212-A RFID tag IC will respond with the

corresponding data packet. A9212-A RFID tag IC is designed base upon the one command one

action structure.

RFID Reader

Reader Command

Reader

Processing

Reader

Command

Reader

Processing

A9210

RFID

Tag

Command cycle 1

Command

Tag

Execution Response

Command cycle 2

Command Tag

Execution Response

Figure3: A9212-A Command Cycle Diagram

Time

Each reader command and each tag reponse packet are contained in a frame. The frame is

delimited by frame delimiters SOF (Start of Frame) and EOF (End of Frame). Each reader

command consists of the following fields:

․ Flags

․ Command code

․ Memdatory and optonal parameter fields (command dependent)

․ Application data filed

․ CRC

Reader command as seen by A9212-A RFID tag IC should have the following format

SOF Flags

Command Code Parameters

Data

CRC

EOF

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Ver. 1.0

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