MLX90132 Datasheet, PDF (24/44 Pages) Melexis Microelectronic Systems – 13.56MHz RFID / NFC Transceiver

MLX90132
13.56MHz RFID / NFC Transceiver
Possible return codes are listed in the table below.
Respond codes from the device in Listen mode
Direction
Data
Comments
80
Result code
Device - MCU
<Len>
<Data>
Length of data
Data received. Interpretation
depends on protocol
86
Device - MCU ₀₀
Error code
Length of data
Device - MCU
87
00
Error code
Length of data
Device - MCU
88
00
Error code
Length of data
Device – MCU
89
00
Error code
Length of data
8A
Error code
Device – MCU ₀₀
Length of data
Device – MCU
8B
00
8E
Device - MCU
00
Error code
Length of data
Error code
Length of data
Example
800605000071FF00 - The request from the Reader is
decoded. This is an example of Request in Iso14443-B
protocol
8600 - Communication error
8700 - Listening mode was cancelled by the application
8800 - Invalid SOF
8900 - Receive buffer overflow
8A00 - Protocol Framing error:
- ISO14443A & ISO18092 (106kbps): Mod. Miller, wrong
symbol sequence
- ISO14443B: Start/Stop bit polarity
- ISO18092 (212,424kbps): SYNC ≠ 0xB24D
8B00 - EGT time out (ISO14443B)
8E00 - Reception lost without EOF received
Table 19: “Listen” command, possible return codes
If the request from the Reader was successfully received and decoded, the MLX90132 will send data back to
the application, as shown in the following table.
Data format sent to the application in ‘Listen’ mode
Protocol
Explanation
Response example
Request example 80 0A 9370800F8C8E 8D 4E01 08
Result code
Length of entire data field
ISO14443A Data received from reader
NFC-A _{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
Request example 80 06 050000 71FF 00
Result code
Length of entire data field
ISO14443B Data received from Reader
NFC-B _{Original (received) value of CRC}
7:2 – RFU
1 – CRC error if set
0 – RFU
Request example 80 06 00FFFF0000 00
Result code
ISO18092 ^{Length of entire data field}
(212, 424kbp) ^{Data received from reader}
NFC-F ^{7:2 – RFU}
1 – CRC error if set
0 – RFU
Comments
The anti-collision filter could be activated with the
command “AcFilter”. In this case, the complete
anti-collision process is supported by the
MLX90132 as soon as a “Listen” command is
initiated. The information will be automatically sent
by the MLX90132
Table 20: Data format sent to the application in “Listen” mode
3901090132
Rev. 009
Page 24 of 44
Jan-2014