NTP53X2 datasheet(92/133 Pages) NXP

92 / 133 page

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

92 / 133

Table 204. LOCK EAS response format when Error_flag is NOT set

Flags

CRC16

8 bits

16 bits

Table 205. LOCK EAS response format when Error_flag is set

Flags

Error Code

CRC16

8 bits

16 bits

8.2.3.9.8 EAS ALARM

Command code = A5h

The EAS ALARM command can be used in the following configurations:

• Option_flag is set to 0b:

EAS ID mask length and EAS ID value shall not be transmitted.

If the EAS mode is enabled, the EAS response is returned from the IC.

• Option_flag is set to 1b:

Within the command, the EAS ID mask length has to be transmitted to identify how

many bits of the following EAS ID value are valid (multiple of 8-bits). Only those ICs will

respond with the EAS sequence which have stored the corresponding data in the EAS

ID configuration (selective EAS) and if the EAS Mode is set.

If the EAS ID mask length is set to 00h, the IC will answer with its EAS ID.

Table 206. EAS ALARM Request format

Flags

EAS ALARM

Manuf. code

UID

EAS ID mask

length

EAS ID value

CRC16

8 bits

64 bits

(optional)

8 bits (optional) 0, 8 or 16 bits

(optional)

16 bits

If an error is detected the IC remains silent.

Option_flag is set to 0b or Option_flag is set to logic 1b and the EAS ID mask length is

not equal to 00h:

Table 207. EAS ALARM Response format (Option flag logic 0)

Flags

EAS sequence

CRC16

8 bits

256 bits

16 bits

EAS sequence (starting with the least significant bit, which is transmitted first; read from

left to right):

11110100 11001101 01000110 00001110 10101011 11100101 00001001 11111110

00010111 10001101 00000001 00011100 01001011 10000001 10010010 01101110

01000001 01011011 01011001 01100001 11110110 11110101 11010001 00001101

10001111 00111001 10001011 01001000 10100101 01001110 11101100 11110111

Option_flag is set to 1b and the EAS ID mask length is equal to 00h:

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