MFRC63002R datasheet(48/118 Pages) NXP

48 / 118 page

MFRC630

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Product data sheet

COMPANY PUBLIC

Rev. 3.1 — 6 September 2012

227531

48 of 118

NXP Semiconductors

MFRC630

Contactless reader IC

8.10 Command set

8.10.1 General

The behavior is determined by a state machine capable to perform a certain set of

commands. By writing the according command-code to register Command the command

is executed.

Arguments and/or data necessary to process a command, are exchanged via the FIFO

buffer.

• A data transmission of the TxEncoder can be started by a command. When started,

the communication is executed as defined in the TxFrameCon register. Therefore a

communication frame can consist of a start-symbol, a data-stream, and followed by

an end-symbol.

• Each command that needs a certain number of arguments will start processing only

when it has received the correct number of arguments via the FIFO buffer.

• The FIFO buffer is not cleared automatically at command start. Therefore, it is

recommended to write the command arguments and/or the data bytes into the FIFO

buffer and start the command afterwards.

• Each command may be interrupted by the host by writing a new command code into

8.10.2 Command set overview

Table 34.

Command set

Command

No.

Parameter (bytes)

Short description

Idle

00h

no action, cancels current command execution

LPCD

01h

low-power card detection

LoadKey

02h

(keybyte1),(keybyte2), (keybyte3),

(keybyte4), (keybyte5),(keybyte6);

reads a MIFARE key (size of 6 bytes) from FIFO buffer

ant puts it into Key buffer

MFAuthent

03h

60h or 61h, (block address), (card

serial number byte0),(card serial

number byte1), (card serial number

byte2),(card serial number byte3);

performs the MIFARE standard authentication in

MIFARE read/write mode only

Receive

05h

activates the receive circuit

Transmit

06h

transmits data from the FIFO buffer

Transceive

07h

transmits data from the FIFO buffer and automatically

activates the receiver after transmission finished

WriteE2

08h

addressL, addressH, data;

gets one byte from FIFO buffer and writes it to the

internal EEPROM, valid address range are the

addresses of the MIFARE Key area

WriteE2Page

09h

(page Address), data0, [data1

..data63];

gets up to 64 bytes (one EEPROM page) from the FIFO

buffer and writes it to the EEPROM, valid page address

range are the pages of the MIFARE Key Area

ReadE2

0Ah

addressL, address H, length;

reads data from the EEPROM and copies it into the

FIFO buffer, valid address range are the addresses of

the MIFARE Key area

LoadReg

0Ch

(EEPROM ddressL), (EEPROM

addressH), RegAdr, (number of

reads data from the internal EEPROM and initializes the

MFRC630 registers. EEPROM address needs to be

within EEPROM sector 2

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