sri512 STMicroelectronics, sri512 Datasheet - Page 18

• Manufacturer Part Number: sri512
• Description: 13.56-mhz Short-range Contactless Memory Chip With 512-bit Eeprom And Anti-collision Functions
• Manufacturer: STMicroelectronics

Memory mapping
4.3
18/50
EEPROM area
The 9 blocks between addresses 7 and 15 are EEPROM blocks of 32 bits each (36 Bytes in
total). (See
READ_BLOCK and WRITE_BLOCK commands. The WRITE_BLOCK command for the
EEPROM area always includes an Auto-Erase cycle prior to the Write cycle.
Blocks 7 to 15 can be Write-protected. Write access is controlled by the 9 bits of the
OTP_Lock_Reg located at block address 255 (see
details). Once protected, these blocks (7 to 15) cannot be unprotected
Figure 17. EEPROM (addresses 7 to 15)
Block
Address
10
11
12
13
14
15
7
8
9
Figure 17
b31
MSb
for a map of the area.) These blocks can be accessed using the
b16 b15 b14
32-bit Block
User Area
User Area
User Area
User Area
User Area
User Area
User Area
User Area
User Area
Section 4.4.1: OTP_Lock_Reg
b8 b7
LSb
b0
Description
Lockable
EEPROM
for
SRI512
Ai12383