AN3408 datasheet(17/38 Pages) STMICROELECTRONICS

Il numero della parte	AN3408

Spiegazioni elettronici	The NFC technology allows accessing standard

PDF	38 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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DocID018867 Rev 4

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AN3408

Example of NDEF record

4.1

Text record

Example 1: With the text “ISO15693 as NFC tag”, the structure of the NDEF message is

described in Table 23.

The record header is 0xD1.

The value of payload is 0x02 + “en” + “ISO15693 as NFC tag”.

Table 23. “ISO15693 as NFC tag” NDEF message structure

V as defined into NFC document (1)

Refer to [TEXT] document – on page 1

Terminator

0x03

0x1A

0xD1

0x01

0x16

0x54

0x02

“en”

“ISO15693

as NFC tag”

0xFE

Type

NDEF

message

TLV

Length (26 bytes)

Record head

Type length

Payload length (22 bytes) (2)

Payload length = status byte + Language code + UTF-8 string length = 1 + 2 + 19 = 22d.

Type (T value) for text record type

Status byte (UTF-8 and 2 bytes for language code)

Language code “en” is the ISO code for English (UTF-8 string)

UTF-8 string

Terminator TLV

AN3408 Scheda tecnica(PDF) 17 Page - STMicroelectronics