SRTAG2KL View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'SRTAG2KL' PDF : 51 Pages View PDF
SRTAG2KL memory management
SRTAG2KL
3.1.3
Table 4. CC file layout for 1 NDEF file (continued)
File offset
Meaning
Value
Comments
0x0007
0x04 (2)
T field
0x0008
0x06
L field
0x0009
0x000B
0x000D
0x000E
NDEF file control TLV
0x0001
0x0100
0x00 (2)
0x00 (2)
FileID
Maximum NDEF
file size in Byte
Read access
Write access
1. According to the reader command format SRTAG2KL will automatically align to the corresponding NFC
Forum version.
2. Delivery state.
NDEF file layout
The NDEF file contains the NDEF message which contains the User data. The RF host can
read and write data inside the file. The first two bytes named NDEF Message Length define
the size of the NDEF message. The NDEF Message Length shall be managed by the
application and the SRTAG2KL device does not check if its value is relevant vs the data
written by the RF host. The SRTAG2KL device uses the NDEF Message Length, e. g. the
standard read can be processed only inside the NDEF message; otherwise, the SRTAG2KL
device returns an error code. For more details about the read command, refer to
Section 5.6.7: ReadBinary command.
File offset
0x0000
0x0004
...
...
...
0x00FC
Table 5. NDEF file layout
Byte 0
Byte 1
NDEF message length
User data
User data
...
...
...
...
...
...
...
...
Byte 2
User data
User data
...
...
...
...
Byte 3
User data
User data
...
...
...
User data
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DocID026583 Rev 2
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