M24SR02-YDW6T/2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M24SR02-YDW6T/2

Dynamic NFC/RFID tag IC with 2-Kbit EEPROM, NFC Forum Type 4 Tag and I²C interface

STMicroelectronics

M24SR02-YDW6T/2 Datasheet PDF : 90 Pages

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M24SR02-Y

I²C and RF command sets

Table 41 defines the R-APDU of the Change Reference Data command.

Length

Value

Table 41. R-APDU of the Change Reference Data command

Data

SW1

SW2

Comment

1 byte

1 byte -

0x90

0x00

Command completed, the access right has

been changed

0x69

0x81

Cmd is incompatible with the

file structure

0x65

0x81 Unsuccessful updating

0x69

0x82 Security status not satisfied

0x6A

0x80 CC file or System file selected

0x6A

0x82 File or application not found

0x6A

0x86 Incorrect P1 or P2 values

0x6E

0x00 Class not supported

5.7.3

Enable Verification Requirement command

The Enable Verification Requirement command activates the protection by password of the

NDEF file. When this command is successful, the read or write access to the NDEF file is

protected by a 128-bit password. It can be performed only if the security status satisfies the

security attributes for this command.

This command can update the right access of the NDEF file by writing into the EEPROM. In

this case, the response timing will be around 5 ms.

Before sending this command, the verify command with the correct NDEF write password

shall be issued. Thus, this command changes the access right of the NDEF file.

Table 42 defines the Enable Verification requirement command.

Table 42. Enable Verification Requirement command format

Name

CLA

INS

P1 & P2

Data

0x00

0x28

2 bytes

Class byte

Instruction code

New security attributes

0x0001: Enable the read protection of the NDEF file

0x0002: Enable the write protection of the NDEF file

Other: RFU

The last five bits identify the password sent in the Verify command.

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