MFRC52302HN1,151 NXP Semiconductors, MFRC52302HN1,151 Datasheet - Page 68

• Manufacturer Part Number: MFRC52302HN1,151
• Description: IC READER 32-HVQFN
• Manufacturer: NXP Semiconductors
• Series: MIFARE®r

Specifications of MFRC52302HN1,151

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935293911151

NXP Semiconductors
10. MFRC523 command set
MFRC523
Product data sheet
COMPANY PUBLIC
10.1 General description
10.2 General behavior
10.3 MFRC523 command overview
The MFRC523 operation is determined by a state machine capable of performing a set of
commands. A command is executed by writing a command code (see
CommandReg register.
Arguments and data necessary to process a command are exchanged using the FIFO
buffer.
The MFRC523 operation is determined by a state machine capable of performing a set of
commands. A command is executed by writing a command code (see
CommandReg register.
Arguments and/or data necessary to process a command are exchanged via the FIFO
buffer.
Table 150. Command overview
Command
Idle
Mem
Generate RandomID
CalcCRC
Transmit
NoCmdChange
Receive
Transceive
•
•
•
•
Each command that needs a data bit stream (or data byte stream) as an input
immediately processes any data in the FIFO buffer. An exception to this rule is the
Transceive command. Using this command, transmission is started with the
BitFramingReg register’s StartSend bit.
Each command that needs a certain number of arguments, starts processing only
when it has received the correct number of arguments from the FIFO buffer.
The FIFO buffer is not automatically cleared when commands start. This makes it
possible to write command arguments and/or the data bytes to the FIFO buffer and
then start the command.
Each command can be interrupted by the host writing a new command code to the
CommandReg register, for example, the Idle command.
All information provided in this document is subject to legal disclaimers.
Rev. 3.7 — 8 November 2011
Command
code
0000
0001
0010
0011
0100
0111
1000
1100
115237
Action
no action, cancels current command execution
stores 25 bytes into the internal buffer
generates a 10-byte random ID number
activates the CRC coprocessor or performs a self-test
transmits data from the FIFO buffer
no command change, can be used to modify the
CommandReg register bits without affecting the command,
for example, the PowerDown bit
activates the receiver circuits
transmits data from FIFO buffer to antenna and automatically
activates the receiver after transmission
Contactless reader IC
MFRC523
Table
Table
© NXP B.V. 2011. All rights reserved.
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