NTP53X2 datasheet(98/133 Pages) NXP

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NXP Semiconductors

NTP53x2

NTAG 5 link - NFC Forum-compliant I2C bridge

NTP53x2

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Product data sheet

Rev. 3.3 — 3 July 2020

COMPANY PUBLIC

544533

98 / 133

Table 227. PICK RANDOM ID response format when Error_flag is set

Flags

Error Code

CRC16

8 bits

16 bits

After a successful PICK_RANDOM_ID the NTAG 5 link will respond on an INVENTORY

command with a random ID as defined in the table below.

Table 228. Random ID

MSB

LSB

63:56

55:48

47:40

39:32

31:24

23:16

15:0

E0h

04h

00h

CID_1

CID_0

16-bit random

8.2.4 Data integrity

Following mechanisms are implemented in the contactless communication link between

reader and NTAG 5 link to ensure very reliable data transmission:

• 16-bit CRC per block

• Bit count checking

• Bit coding to distinguish between logic 1, logic 0, and no information

• Channel monitoring (protocol sequence and bit stream analysis)

8.2.5 Error Handling

8.2.5.1 Transmission Errors

According to ISO/IEC 15693 NTAG 5 link will not respond if a transmission error (CRC,

bit coding, bit count, wrong framing) is detected and will silently wait for the next correct

received command.

8.2.5.2 Not supported commands or options

If the received command or option is not supported, the behavior depends on the

addressing mechanism.

• Non-Addressed Mode

NTAG 5 link remains silent

• Addressed or selected Mode

NTAG 5 link responds with error code 0Fh (no information given, or error code not

supported).

If the Inventory flag or the Protocol Extension flag is set, the IC will not respond if the

command or option is not supported.

• Parameter out of range

– Read alike commands

If the sum of the first block number and the number of blocks exceeds the total

available number of user blocks, the number of transmitted blocks is less than the

requested number of blocks. This means that the last returned block is the highest

available user block, followed by the 16-bit CRC and the EOF.

– Write alike commands

If the address of a block to be written does not exist or a block to be written is locked,

the behavior of the IC depends on the addressing mechanism.

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