ST25TA64K datasheet(22/45 Pages) STMICROELECTRONICS

22 / 45 page

RF command sets

ST25TA64K

22/45

DocID027764 Rev 1

5.5

CRC of the RF frame

The two CRC bytes check the data transmission between the RF host and the ST25TA64K.

For the RF frame, the CRC is computed on all the data bits in the frame, excluding parity

bits, SOF and EOF, and the CRC itself.

The CRC is as defined in ISO/IEC 13239. The initial register content shall be 0x6363 and

the register content shall not be inverted after calculation.

5.6

NFC Forum Type 4 Tag protocol

5.6.1

Commands set

5.6.2

Status and error codes

This section lists the status and the error code of the ST25TA64K.

Table 17. Command set overview

Command name

Brief description

NDEF Tag Application Select

Select the NDEF Tag Application

Capability Container Select

Select the capability container (CC) file using the Select command

NDEF Select

Select the NDEF file

System File Select

Select the system file

ReadBinary

Read data from a file

UpdateBinary

Write new data to a file

Table 18. Status code of the ST25TA64K

SW1

SW2

Comment

Value

0x90

0x00

Command completed

successfully

Table 19. Error code of the ST25TA64K

SW1

SW2

Comment

Length

1 byte

Value

0x62

0x80

File overflow (Le error)

Value

0x62

0x82

End of file or record reached

before reading Le bytes

Value

0x63

0x00

Password is required

Value

0x63

0xCX

Password is incorrect, X further

retries allowed (X can take

value 0,1, 2)

Value

0x65

0x81

Unsuccessful updating

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