HID Global Corporation 5553 Manuale Utente

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1508-USM-00-0-04 
 
HF Multi ISO RFID Reader User Manual, Firmware V1.4 
 
5.3.2  Memory organization 
An ISO15693 tag is separated into two blocks. An administrative block contains the UID, AFI, 
DSFID and the lock page state. The user block is free for custom use. The chip manufacturer 
defines the amount of bytes and number of pages of each tag. As default four bytes are used for 
several tags. 
Byte 
Page 
address 
3Fh User 
data 
… … 
00h User 
data 
Administrative block 
 
5.3.3  my-d™ IC (SRF55VxxP) 
my-d™ ICs are specific ICs from Infineon. These labels show a different memory organization. Two 
different modes of tags are supported: plain and secure mode.  
Two different cards with 320 bytes or 1k bytes EEPROM memory are available. The EEPROM 
memory is divided into pages. 
Each tag is split into two parts: The administrative blocks (00h, 01h, 02h) and the user area. 
Administrative pages are read only and cannot be changed. User data is free for use. Additionally 
user data pages can be locked. This procedure is irreversible. 
The EEPROM of SRF55V10P is organized in 128 pages addressed 00h to 7Fh. The EEPROM of 
SRF55V02P consists of 32 pages addressed 00h to 1Fh. 
Byte number within a page 
Address 
 
7Fh User 
data 
… … 
 
1Fh User 
data 
… … 
03h User 
data 
02h 
 
01h 
 
SRF55V02P 
SRF55V10P 
00h 
Serial number (UID) 
5.3.3.1 
UID 
The UID of SRF55Vxx labels starts with 60h or E0h. 
Page 118 of 144 
 
August 2010 
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