Deister electronic UDL5 Quick Start Manual
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5. EPC class1 gen2 memory organisationThis paragraph refers to the document “EPCglobal™, Specification for RFID Air Interface”,Version 1.0.9.The tag memory is divided into four memory banks. Each memory bank consists of severalblocks, each block has the size of 2 bytes. The banks RESERVED, EPC and TID must alwaysbe available, the USER bank is optional.• RESERVED: Non-Volatile-Memory, this memory contains a 32 bit Kill Password and a32 bit Access Password.• EPC (Electronic Product Code): This bank contains the CRC-16 (cyclic redundancycheck), PC (Protocol Control) and EPC. The PC bits contain information about the tag,e.g. length of the EPC. The EPC begins at block address 66 (dec), MSB first. In case ofa 96 bit EPC it has the size of 6 blocks.• TID (Transponder Identification): The TID memory contains data about themanufacturer. Tags may contain specific data within the TID memory, beginning atblock address 130 (dec), e.g. a tag serial number.• USER: allows user specific data storage. The memory organisation is user-defined.V27/09/07 deister electronic GmbH 30890 Barsinghausen Germany 17UDL5 - UHF mouse · Quick start manual3 USER[15:0]… ……[N:N-15] [0:15] 1922 TID… … …TID [15:0] [16:31] 129TID [31:16] [0:15] 1281 EPCEPC [15:0]… ……EPC [N:N-15] [32:47] 66PC [15:0] [16:31] 65CRC-16 [15:0] [0:15] 640 RESERVED… … …Access Password [15:0] [48:63] 3Access Password [31:16] [32:47] 2Kill Password [15:0] [16:31] 1Kill Password [31:16] [0:15] 0Bank No.(decimal form)BankNameBlock Memory Content[MSB:LSB](decimal form)Memory BankAddresses[MSB:LSB] (decimalform)Block Address(decimal form) |
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