RX95HF Datasheet, PDF (19/44 Pages) STMicroelectronics – Near field communication transceiver for tag emulation

RX95HF
Commands
Table 13. Response codes from the RX95HF in Listening mode (continued)
Direction
Data
Comments
Example
RX95HF - ^8E
Host
00
Error code
Length of data
<<<0x8E00 Reception lost without EOF
received
If the request from the Reader was received and decoded correctly, the RX95HF will send
data back to the Host (Tag Emulation application). This is explained in Table 14.
Table 14. Data format sent to the Host in Listening mode
Protocol Explanation
Response example
Comments
Request example 80 0A 9370800F8C8E 8D 4E01 08
ISO/IEC-
14443
Type A
Result code
Length of entire data field
Data received from reader
Received value of BCC (if any)
Received value of CRC (if any)
7: RFU
6: RFU
5: CRC error
4: Parity error
3:0: number of significant bits in last byte
<<<0x80 0A
9370800F8C8E
8D 4E01 08
5.7
Send command (0x06) description
This command immediately sends data to the reader using the Load Modulation method
without waiting for a reply.
Before sending this command, the application must select a communication protocol.
Direction
Table 15. SEND command description
Data
Comments
Example
Host to
RX95HF
06
<Len>
<Data>
RX95HF to ⁰⁰
Host
00
RX95HF to ⁸²
Host
00
RX95HF to ⁸³
Host
00
Command code
Length of data
Data and additional
parameter to be sent
Result code
Length of data
Error code
Length of data
Error code
Length of data
Depends on protocol previously
selected!
>>>0x0606D07387080028: Emulation
of TAG response in ISO/IEC 14443
Type A protocol
<<<0x0000
Data was successfully sent
<<<0x8200 Invalid length (for example,
Length=0 where it is not possible)
<<<0x8300 Invalid protocol previously
selected by Select Protocol command
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