RFID tag article coding area (EPC area) consists of CRC-16, PC (protocol control) and EPC. The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
The PC protocol control word contains the information of the physical layer of the tag, which is returned by the tag through its article code area EPC in each inventory operation. The PC protocol control contains a total of 16 bits, which are stored in the EPC storage area from 10 h To 1F h In the unit of, the meaning of each bit is defined as follows: The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
ten h —14 h : The length of the backscattered (PC+EPC) label. All words are: The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
00000 two : The length of PC+EPC is 1 word (EPC length is 0) The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
00001 two : PC+EPC is 2 words long (EPC is 1 word, 2 bytes, 16 bits) The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
00010 two : PC+EPC is 3 words long (EPC is 2 words, 4 bytes, 32 bits) The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
... The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
eleven thousand one hundred and eleven two : PC+EPC is 32 words long (EPC is 31 words, 62 bytes, 496 bits) The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
fifteen h —17 h : RFU (Class 1 tag is 000 two )。 The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
eighteen h —1F h : The default value is 00000000 two It can also include counting system identification (NSI) including AFI defined in ISO/IEC 15961. The MSB of the NSI is stored in the 18h storage location. The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
Our common RFID tag PC protocol control word is usually set to 3000 h Or 4000 h ： The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
The PC protocol control word is set to 3000 h Indicates that the EPC length is 6 words, 12 bytes, and 96 bits. The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
PC protocol control word set to 4000 h Indicates that the EPC length is 8 words, 16 bytes, and 128 bits. The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
During the power on of the label, the label should calculate its
The CRC-16 check code is not calculated by the length of the entire EPC storage area. The article originates from the fallen fish- https://www.duoluodeyu.com/2522.html
