MLX90132 Datasheet, PDF (16/44 Pages) Melexis Microelectronic Systems – 13.56MHz RFID / NFC Transceiver

MLX90132
13.56MHz RFID / NFC Transceiver
Parameter list for different protocols (Reader)
Protocol
(Reader)
Code
Parameters
Byte Bit
Function
Transmission data rate
00 – RFU
7:6 01 – 212kbps
10 – 424kbps
11 – RFU
Reception data rate
00 – RFU
0
5:4 01 – 212Kbps
10 – 424Kbps
11 – RFU
3:1 RFU, set to ‘0’
0
0 – No CRC added
1 – CRC auto. added
ISO18092
(212,424Kb) 04
NFC-F
7:5 RFU, set to ‘0’
4
0 - RWT = 2.4ms
1 – RWT is specified by PP:MM
1
Slot counter
0x0 – 1 slot
3:0 0x1 – 2 slots
…
0xF – 16 slots
2
7:0 PP (max 14, i.e. 0x0E)
3
7:0 MM (max 255, i.e. 0xFF)
4
7:0 DD (max 127, i.e. 0x7F)
Examples of commands
02020451 – ISO/IEC18092, 212kbps for
transmission & reception, CRC automatically
added
Parameter ‘Slot counter’ is optional, the
default value 00 (1 slot) will be used, if not
present in the command.
For command SDD (Single Device
Detection), the bit 4 must be set to 0, In this
case RWT is 2.4ms for the 1^st slot and 1.2ms
more for each following slot as specified in
protocol ISO18092
Request Waiting Time (RWT) definition:
These 3 bytes are optional. The default value
corresponds to a RWT of 302µs.
RWT  ^{2PP  MM1 DD 128 32} [s]
13.56
if PP is defined, then MM must be also
defined while, DD remains optional
Table 10: Parameter values for “Protocol select” command (Reader)
3901090132
Rev. 009
Page 16 of 44
Jan-2014