CLRC663 datasheet(54/177 Pages) NXP

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NXP Semiconductors

CLRC663

High performance multi-protocol NFC frontend CLRC663 and CLRC663 plus

Command

No.

Parameter (bytes)

Short description

AckReq

04h

performs a query, an Ack and a Req-Rn for ISO/IEC

18000-3 mode 3/ EPC Class-1 HF

Receive

05h

activates the receive circuit

Transmit

06h

bytes to send: byte1, byte2,....

transmits data from the FIFO buffer

Transceive

07h

bytes to send: byte1, byte2,....

transmits data from the FIFO buffer and automatically

activates the receiver after transmission finished

WriteE2

08h

addressH, addressL, data;

gets one byte from FIFO buffer and writes it to the

internal EEPROM

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

ReadE2

0Ah

addressH, address L, length;

reads data from the EEPROM and copies it into the

FIFO buffer

LoadReg

0Ch

(EEPROM addressH), (EEPROM

addressL), RegAdr, (number of

reads data from the internal EEPROM and initializes

the CLRC663 registers. EEPROM address needs to be

within EEPROM sector 2

LoadProtocol

0Dh

(Protocol number RX), (Protocol

number TX);

reads data from the internal EEPROM and initializes the

CLRC663 registers needed for a Protocol change

LoadKeyE2

0Eh

KeyNr;

copies a key from the EEPROM into the key buffer

StoreKeyE2

0Fh

KeyNr, byte1,byte2, byte3, byte4,

byte5,byte6;

stores a MIFARE Classic key (size of 6 bytes) into the

EEPROM

ReadRNR

1Ch

Copies bytes from the Random Number generator into

the FIFO until the FiFo is full

Soft Reset

1Fh

resets the CLRC663

Table 46. Command set...continued

8.10.3 Command functionality

8.10.3.1 Idle command

Command (00h);

This command indicates that the CLRC663 is in idle mode. This command is also used to terminate the actual

command.

8.10.3.2 LPCD command

Command (01h);

This command performs a low-power card detection and/or an automatic trimming of the LFO. After wake-up

from standby, the values of the sampled I and Q channels are compared with the min/max threshold values

in the registers. If it exceeds the limits, an LPCD_IRQ will be raised. After the LPCD command the standby is

activated, if selected.

8.10.3.3 Load key command

Command (02h), Parameter1 (key byte1),..., Parameter6 (key byte6);

Loads a MIFARE Classic key (6 bytes) for Authentication from the FIFO into the crypto-unit.

CLRC663

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5.3 — 3 January 2024

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