NTP53X2 datasheet(74/133 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

74 / 133

Table 145. LOCK PAGE PROTECTION CONDITION response format when Error_flag is NOT

set

Flags

CRC16

8 bits

16 bits

Table 146. LOCK PAGE PROTECTION CONDITION response format when Error_flag is set

Flags

Error Code

CRC16

8 bits

16 bits

Remark: If the transmitted protection pointer address does not match with the stored

address the IC will respond according to the error handling.

8.2.3.3.8 DESTROY

Command code = B9h

In plain password mode the DESTROY command disables NTAG 5 link if the destroy

password is correct. This command is irreversible and NTAG 5 link will never respond to

any command neither NFC nor I2C again.

The DESTROY command can only be executed in addressed or SELECTED mode.

The XOR password has to be calculated with the password and two times the received

random number from the last GET RANDOM NUMBER command:

XOR_Password[31:0] = Password[31:0] XOR {Random_Number[15:0],

Random_Number[15:0]}.

The timing of the command is write alike.

Option_flag = 0b and Option_flag = 1b is supported and is in accordance with ISO/IEC

15693 write-alike commands.

NOTE: In AES mode, Mutual Authentication with Purpose_MAM2 = 1011b needs to be

executed to destroy NTAG 5 link.

Table 147. DESTROY request format

Flags

DESTROY

Manuf. code

UID

XOR password

CRC16

8 bits

64 bits (optional)

16 bits

Table 148. DESTROY response format when Error_flag is NOT set

Flags

CRC16

8 bits

16 bits

Table 149. DESTROY response format when Error_flag is set

Flags

Error Code

CRC16

8 bits

16 bits

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