Zebra Technologies R402 manual Philips ICode Transponders, Philips ICode Blocks

Philips I•Code Transponders

Philips I•Code transponders are high frequency (13.56MHz) RFID devices. Each transponder has 512 bits of memory. Data is segmented into 4 byte (32 bit) blocks that are uniquely addressable for a total of 16 blocks. Each memory block is lockable using the write protect function during the writing process. The first two blocks of data (block 0 and 1) are pre-programmed, non-changeable, and are used for storage of a unique 64 bit serial number. The next two blocks (blocks 2 and 3) are used for storage of configuration information; block 4 is used for family or application identification and blocks 5 to 15 are free for user application use.

If you are using these transponders for your own use, and don’t require universal special function or family codes, then you can program blocks 3 through 15.

Philips I•Code Blocks

Block #	Description	Bytes
0	Serial Number (write protected)
1	Serial Number (write protected)
2	Write Protect Block (Caution*)
3	Special Function Block	8 Optional
4	Family Code
5	User Data
6	User Data
7	User Data
8	User Data
9	User Data
10	User Data	40 User
11	User Data
12	User Data
13	User Data
14	User Data
15	User Data

*The bits in block 2 determine the write access conditions for itself and each of the remaining blocks. You can leave blocks 2 through 15 open or you can write-protect them. Write-protected blocks (included block 2) can never be written to from the moment they are locked