Datasheet

PN512 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 5.2 — 16 June 2016
111352 101 of 137
NXP Semiconductors
PN512
Full NFC Forum-compliant frontend
18.3 PN512 command overview
18.3.1 PN512 command descriptions
18.3.1.1 Idle
Places the PN512 in Idle mode. The Idle command also terminates itself.
18.3.1.2 Config command
To use the automatic MIFARE Anticollision, FeliCa Polling and NFCID3 the data used for
these transactions has to be stored internally. All the following data have to be written to
the FIFO in this order:
SENS_RES (2 bytes); in order byte 0, byte 1
NFCID1 (3 Bytes); in order byte 0, byte 1, byte 2; the first NFCID1 byte is fixed to 08h and
the check byte is calculated automatically.
SEL_RES (1 Byte)
polling response (2 bytes (shall be 01h, FEh) + 6 bytes NFCID2 + 8 bytes Pad + 2 bytes
system code)
NFCID3 (1 byte)
In total 25 bytes are transferred into an internal buffer.
The complete NFCID3 is 10 bytes long and consists of the 3 NFCID1 bytes, the 6 NFCID2
bytes and the one NFCID3 byte which are listed above.
To read out this configuration the command Config with an empty FIFO-buffer has to be
started. In this case the 25 bytes are transferred from the internal buffer to the FIFO.
Table 158. Command overview
Command Command
code
Action
Idle 0000 no action, cancels current command execution
Configure 0001 Configures the PN512 for FeliCa, MIFARE and NFCIP-1
communication
Generate RandomID 0010 generates a 10-byte random ID number
CalcCRC 0011 activates the CRC coprocessor or performs a self test
Transmit 0100 transmits data from the FIFO buffer
NoCmdChange 0111 no command change, can be used to modify the
CommandReg register bits without affecting the command,
for example, the PowerDown bit
Receive 1000 activates the receiver circuits
Transceive 1100 transmits data from FIFO buffer to antenna and automatically
activates the receiver after transmission
AutoColl 1101 Handles FeliCa polling (Card Operation mode only) and
MIFARE anticollision (Card Operation mode only)
MFAuthent 1110 performs the MIFARE standard authentication as a reader
SoftReset 1111 resets the PN512