M24SR02-Y
M24SR02-Y memory management
3
M24SR02-Y memory management
3.1
3.1.1
3.1.2
Memory structure
The M24SR02-Y supports the NDEF Tag Application as defined in the NFC Forum Type 4
Tag. The M24SR02-Y is composed of three files:
• One Capability Container file
• One NDEF file
• One System file: this is an ST-proprietary file
The System file contains some information on the configuration of the M24SR02-Y device.
The CC file gives some information about the M24SR02-Y itself and the NDEF file. The
NDEF file contains the User data.
File identifier
The file identifier is the value used in the Select command to select a file.
File identifier
0xE101
0xE103
0x0001
Table 3. File identifier
Meaning
System file
CC file
NDEF file
CC file layout
The CC file gives some information about the M24SR02-Y and the NDEF file. This file is a
read-only file for the RF or I²C host and cannot be modified by issuing a write command.
The T field, Read Access and Write Access fields can be changed by the RF or I²C host by
issuing a specific process (refer to Section 8: Functional procedures).
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