User's Manual Part 1

13,56 MHz Multitag Reader Module, Version 0.9v
ACG Identification Technologies AT Page 9
3.3.4 EM 4135
The EM4135 is an ISO15693 compliant label of EM Microelectronic-Marin SA. It has
eight bytes per page as the same as the My-D label. It only supports 35 pages. The
administrative area holds the information of the access condition and the UID.
Page
Address
0 1 2 3 4 5 6 7
24h User data
… …
00h User data
Administrative area
Figure 3-8: Memory organization of EM 4135
3.4 Icode®
Icode® labels stores data is stored in a non-volatile EEPROM. Its capacity is 512 bits
organized in 16 blocks consisting 4 bytes each (1 block = 32 bits). First 3 blocks
contain administrative data.
3.4.1 Memory organization
Byte
Page
address
0 1 2 3
0Fh User data
… …
05h User data
04h Family code identifier / User data
03h Special function (EAS) / User data
02h Write access condition
01h Serial number
00h Serial number
Figure 3-9: Icode® memory organization
3.4.2 Serial number
The serial number of a label is defined at the manufacturer process. It is stored on
page 00h and page 01h. LSB is stored first.