User's Manual

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Chapter 5 RFID Scan
Generally speaking, RFID Reader allows you to configure the access password, memory
bank, starting address and data length of a accessed tag.
Reserved Memory:
An EPC GEN 2 tag has two separate passwords – a Kill Password and an Access Password.
Each password is 32 bits and is stored in the reserved bank (bank 00) of a tag memory.
For security, the target between Kill Password and Access Password are different. Active Kill
Password will erase all the functions to make security for limiting access. The RFID Reader
then can not read the tag. Use Access Password will make the tag to enter secure mode for
accessing.
EPC Memory:
This memory includes three partitions:
 A 16-bit CRC
- The actual data is the 1’s complement of the published CRC-16 definition.
 A 16-bit Protocol Control (PC)
- 5 bits is for the length of PC + EPC.
- 2 bits is RFU (00
2
).
- 9 bits is for a numbering system ID (NSI), which may contain an EPCglobal
TM
header
or an AFI as defined in ISO 15961.
 An EPC (includes Header, General Manager Number, Object Class and Serial Number)
- The electronic product code of the object to which the Tag is attached.
TID Memory:
This memory includes:
 An 8 bits ISO 15963 allocation class identifier
- For EPCglobal
TM
Tags as 0xE2.
 A 12 bits Tag mask-designer ID
 A 12 bits Tag model number
 Allow to add other information if required e.g. Tag serial number
User Memory:
This optional area of memory contains user specific data.