UHF RFID tags are generally divided into four areas:

【Reserve】: Address: 0-3; Address: 0-1 Storage 32bit kill the password (kill), the default is: 00 00 00 00;

                  2-3 store 32bit access password (Access), the default is: 00 00 00 00.

                  When the area is not encrypted or encrypted, the data in the area can be freely rewritten.

[EPC]: Address: 2-7; store 96bit ID number, which is usually our device default read out the data stored in the area. When the area is not encrypted or encrypted, the data in the area can be freely rewritten.

[TID]: Address: 0-5; store 96bit globally unique and non-rewritable ID number.

[User]: Address: 0-31; store 512bit data. By default, each address is: 00 00, when the region is not encrypted access or kill encryption, the region of the data can be arbitrarily rewritten.

Above the regional description, are Alien H3 this relatively common tag chip as an example. Different chips, the corresponding regional data and the actual role may be different

To read the USER area data suggest you go to see the EPC agreement, EPC several basic operations is to read, write, lock, kill.

Protocol documents which are very detailed, in addition, if you are doing application development, according to the API provided by the manufacturers to operate, you need to read the manufacturers of API functions.

If you are doing the underlying baseband development, it is more familiar with the EPC protocol.

Welcome to www. Jtspeedwork. com for more information. There are many types of UHF RFID Tag, e.g. RFID inlay, RFID card, rfid tag sticker,RFID anti-metal tag, RFID high temperature resistance anti-metal tag, RFID animal ear tag,RFID laundry tag etc.