SRTAG2K-D View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

SRTAG2K-D

NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and RF Session digital output

STMicroelectronics 

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SRTAG2K-D memory management

SRTAG2K-D

3.1.3

Table 4. CC file layout for 1 NDEF file

File offset

Meaning

Value

0x0000

0x0002

Number of bytes of CC file

Mapping version(1)

0x000F

0x20 or 0x10

0x0003

Maximum number of bytes that can be read 0x00F6

0x0005

0x0007

Maximum number of bytes that can be written 0x00F6

0x04 (2)

0x0008

0x06

0x0009

0x000B

NDEF file control TLV

0x0001

0x0100

0x000D

0x000E

1. According to the reader.

2. Delivery state.

0x00 (2)

0x00 (2)

Comments

15 bytes

V 2.0 or V 1.0

246 bytes

246 bytes

T field

L field

FileID

Maximum NDEF

file size

Read access

Write access

NDEF file layout

The NDEF file contains the NDEF message which contains the User data. The RF host 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 SRTAG2K-D device does not check if its value is relevant vs the data

written by the RF host. The SRTAG2K-D device uses the NDEF Message Length, e. g. the

standard read can be processed only inside the NDEF message; otherwise, the SRTAG2K-

D device returns an error code. For more details about the read command, refer to

Section 5.6.7: ReadBinary command.

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