M24SR64-Y datasheet(30/90 Pages) STMICROELECTRONICS

30 / 90 page

I²C and RF command sets

M24SR64-Y

30/90

DocID023790 Rev 19

I²C and RF command sets

The command sets of the M24SR64-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 M24SR64-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

byte

Instruction

code

Brief description

NFC Forum

Type 4 Tag

NDEF Tag Application Select

0x00

0xA4

NDEF Tag Application

Select

CC select

0x00

0xA4

Select the CC file

NDEF select

0x00

0xA4

Select the NDEF file

System select

0x00

0xA4

Select the system file

ReadBinary

0x00

0xB0

Read data from file

UpdateBinary

0x00

0xD6

Write or erase data to a

NDEF file

ISO/IEC 7816-4

Verify

0x00

0x20

Checks the right access of

a NDEF file or sends a

password

ChangeReferenceData

0x00

0x24

Change a Read or write

password

EnableVerificationRequirement

0x00

0x28

Activate the password

security

DisableVerificationRequirement

0x00

0x26

Disable the password

security

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