ST25TA64K datasheet(30/45 Pages) STMICROELECTRONICS

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RF command sets

ST25TA64K

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Table 35 defines the R-APDU of the Change Reference Data command.

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 36 defines the Enable Verification requirement command.

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

Table 35. R-APDU of the Change Reference Data command

Data

SW1

SW2

Comment

Length

1 byte

Value

0x90

0x00

Command completed, the access right has been changed

Value

0x69

0x81

Cmd is incompatible with the file structure

Value

0x65

0x81

Unsuccessful updating

Value

0x69

0x82

Security status not satisfied

Value

0x6A

0x80

CC file or System file selected

Value

0x6A

0x82

File or application not found

Value

0x6A

0x86

Incorrect P1 or P2 values

Value

0x6E

0x00

Class not supported

Table 36. 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

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