RX95HF datasheet(37/44 Pages) STMICROELECTRONICS

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RX95HF

Card emulation communication

Appendix A

Card emulation communication

The following information is a log of basic exchanges between the CR95HF transceiver and

RX95HF card emulator.

CR95HFDLL_STCMD

: Is the standard RX95HF frame exchange command. In this command,

the first byte 01 is not sent, it is only requested by the RX95HF development software in

order to recognize if it is a user or service command.

CR95HFDLL_SENDRECV

: Is the encapsulated CR95HF SendReceive command for which

command codes, number of bytes, and CRC are automatically appended to the parameter.

In this section,



The CR95HF data exchanges are in blue.



The RX95HF card emulation data exchanges are in green.



The CR95HF and RX95HF command overhead (command code, length of data and

transmission flag) is in bold.



The CRC value is in red.

When the CRC append option is set in the Protocol Select command, the CRC is

automatically appended by the RX95HF, but the CRC is not visible in the instruction log file.

When the CRC is present in the command or response, CRC reply is in italics.

The following symbols correspond to:

>>> Frame sent by Host to RX95HF

<<< Frame received by Host from RX95HF

RX95HF Datasheet(PDF) 37 Page - STMicroelectronics