NTP53X2 datasheet(45/133 Pages) NXP

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NXP Semiconductors

NTP53x2

NTAG 5 link - NFC Forum-compliant I2C bridge

NTP53x2

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

Product data sheet

Rev. 3.3 — 3 July 2020

COMPANY PUBLIC

544533

45 / 133

one block of user memory area (e.g., bit 0 of byte 0 locks block 0).These bytes can be

written by NFC and I2C. The access to these bytes for the particular interface can be

restricted by configuring the device SECTION_LOCK (see Table 80).

Table 78. NFC Lock Block Configuration location

Block Address

NFC

I2C

Byte 0

Byte 1

Byte 2

Byte 3

6Ah

106Ah

NFC_LOCK_BL00

NFC_LOCK_BL01

RFU

...

RFU

89h

1089h

NFC_LOCK_BL62

NFC_LOCK_BL63

RFU

8.1.3.31 I2C lock bytes

User blocks can be blocked from writing by the I2C interface. These bits are one time

programmable. Once written 1b, they cannot be changed back to 0b. Each bit locks 4

blocks of user memory area (e.g., bit 0 of byte 0 locks blocks 0, 1, 2 and 3).These bytes

can be written by NFC and I2C. The access to these bytes for the particular interface can

be restricted by configuring the device configuration section locks bytes (see Table 80).

I2C_LOCK_BL00 – bit 0 – will lock user blocks 0,1,2,3 from I2C perspective.

Table 79. I2C Lock Block Configuration location

Block Address

NFC

I2C

Byte 0

Byte 1

Byte 2

Byte 3

8Ah

108Ah I2C_LOCK_BL00 I2C_LOCK_BL01

RFU

...

RFU

91h

1091h I2C_LOCK_BL14 I2C_LOCK_BL15

RFU

8.1.3.32 Device configuration section lock bytes

Lock bits are provided to lock different sections of the configuration area. 16 bits for

each interface are provided to define access conditions for different sections of the

configuration area.

First column in the configuration memory table (see Table 11) defines the affiliated blocks

of each section.

Table 80. Device configuration section lock bytes location

Block Address

NFC

I2C

Byte 0

Byte 1

Byte 2

Byte 3

92h

1092h

NFC_LOCK_0

RFU

93h

1093h

NFC_LOCK_1

RFU

94h

1094h

I2C_LOCK_0

RFU

95h

1095h

I2C_LOCK_1

RFU

These section lock configurations are provided to allow customer to initialize NTAG 5 link

during customer configuration from either I2C or NFC interface. After the configuration

is done, it is recommended to write the appropriate lock conditions and lock the device

configuration bytes.

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