MFRC52301HN1,151 NXP Semiconductors, MFRC52301HN1,151 Datasheet - Page 70

• Manufacturer Part Number: MFRC52301HN1,151
• Description: IC MIFARE READER 32-HVQFN
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC52301HN1,151

• Frequency: 13.56MHz
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Operating Current: 7 mA
• Operating Voltage: 2.5 V to 3.6 V
• Product: RFID Readers
• Wireless Frequency: 13.56 MHz
• Interface Type: RS-232, I2C
• Data Rate: 100 Kbps
• Operating Temperature Range: - 25 C to +85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Rf Type: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4766; 935282956151; MFRC52301HN1

NXP Semiconductors
MFRC523_32
Product data sheet
PUBLIC
10.3.1.2 Mem
10.3.1.3 Generate RandomID
10.3.1.4 CalcCRC
10.3.1.5 Transmit
10.3.1.6 NoCmdChange
10.3.1.7 Receive
Transfers 25 bytes from the FIFO buffer to the internal buffer.
To read out the 25 bytes from the internal buffer the Mem command must be started with
an empty FIFO buffer. In this case, the 25 bytes are transferred from the internal buffer to
the FIFO.
During a hard power-down (using pin NRSTPD), the 25 bytes in the internal buffer remain
unchanged and are only lost if the power supply is removed from the MFRC523.
This command automatically terminates when finished and the Idle command becomes
active.
This command generates a 10-byte random number which is initially stored in the internal
buffer. This then overwrites the 10 bytes in the internal 25-byte buffer. This command
automatically terminates when finished and the MFRC523 returns to Idle mode.
The FIFO buffer content is transferred to the CRC coprocessor and the CRC calculation is
started. The calculation result is stored in the CRCResultReg register. The CRC
calculation is not limited to a dedicated number of bytes. The calculation is not stopped
when the FIFO buffer is empty during the data stream. The next byte written to the FIFO
buffer is added to the calculation.
The CRC preset value is controlled by the ModeReg register’s CRCPreset[1:0] bits. The
value is loaded in to the CRC coprocessor when the command starts.
This command must be terminated by writing a command to the CommandReg register,
such as, the Idle command.
If the AutoTestReg register’s SelfTest[3:0] bits are set correctly, the MFRC523 enters Self
Test mode. Starting the CalcCRC command initiates a digital self test. The result of the
self test is written to the FIFO buffer.
The FIFO buffer content is immediately transmitted after starting this command. Before
transmitting the FIFO buffer content, all relevant registers must be set for data
transmission.
This command automatically terminates when the FIFO buffer is empty. It can be
terminated by another command written to the CommandReg register.
This command does not influence any running command in the CommandReg register. It
can be used to manipulate any bit except the CommandReg register Command[3:0] bits,
for example, the RcvOff bit or the PowerDown bit.
The MFRC523 activates the receiver path and waits for a data stream to be received. The
correct settings must be chosen before starting this command.
Rev. 3.2 — 12 January 2010
115232
Contactless reader IC
MFRC523
© NXP B.V. 2010. All rights reserved.
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