M24SR Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

M24SR

Dynamic NFC/RFID tag IC with 2-Kbit EEPROM, NFC Forum Type 4 Tag and I²C interface

STMicroelectronics 

I²C and RF command sets

5

I²C and RF command sets

M24SR02-Y

The command sets of the M24SR02-Y can be split in different command families. Most

commands are common between the RF and the I²C interface. Some commands are

specific to the RF interface and some others are specific to the I²C interface. This section

describes the M24SR02-Y command sets that can be issued by the RF or the I²C host.

There are three command families:

• the NFC Forum Type 4 Tag command set

• the ISO/IEC 7816-4 command set

• the proprietary command set

The NFC Forum Type 4 Tag command set and the ISO/IEC 7816-4 command set use the I-

Block format. For more details about the I-Block format, refer to Section 5.2: I-Block format.

Two other command formats exist:

• the commands using the R-Block format

• the commands using the S-Block format

For more details about these formats, refer to the corresponding sections: Section 5.3: R-

Block format and Section 5.4: S-Block format.

This section gives a brief description of the RF and I²C host common commands. The

format of these command sets is the I-Block format.

Table 14 lists the RF and I²C command sets.

Table 14. RF and I²C command sets

Family

command set

Command name

Class Instruction

byte

code

Brief description

NDEF Tag Application Select

CC select

0x00

0x00

0xA4

0xA4

NDEF Tag Application

Select

Select the CC file

NFC Forum

Type 4 Tag

NDEF select

System select

ReadBinary

UpdateBinary

0x00

0x00

0x00

0x00

Verify

0x00

ChangeReferenceData

ISO/IEC 7816-4

0x00

EnableVerificationRequirement 0x00

DisableVerificationRequirement 0x00

0xA4

0xA4

0xB0

0xD6

0x20

0x24

0x28

0x26

Select the NDEF file

Select the system file

Read data from file

Write or erase data to a

NDEF file

Checks the right access of

a NDEF file or sends a

password

Change a Read or write

password

Activate the password

security

Disable the password

security

30/90

DocID025386 Rev 10

Share Link: