AN4433 datasheet(24/34 Pages) STMICROELECTRONICS

Part #	AN4433

Description	Storing data into the NDEF memory of M24SR

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Example: NDEF file write sequence over RF interface

AN4433

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DocID025791 Rev 1

Appendix B

Example: NDEF file write sequence over RF

interface

B.1

M24SRxx-Y tag configuration:

•

4 K-bit EEPROM size

•

NDEF file contains:

–

Record #1: URL http://www.st.com/nfc-rfid

–

Record #2: Proprietary data of type “st.com:m24sr_proprietary”, with raw data =

0x4D 0x32 0x34 0x53 0x52 0x20 0x70 0x72 0x6F 0x70 0x72 0x69 0x65 0x74

0x61 0x72 0x79 0x20 0x64 0x61 0x74 0x61 (= String “M24SR proprietary data”)

B.2

Format of the below represented frames:

-

“Listen, RF Collision Avoidance, Technology Detection, Collision

Resolution” and “Device Activation” activities are supposed to be done

-

ISODEP protocol bytes (PCB, CRC)

-

NFC Forum Type 4 Tag commands and responses (C-APDU, R-APDU)

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