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5. EPC class1 gen2 memory organisation
This 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 several
blocks, each block has the size of 2 bytes. The banks RESERVED, EPC and TID must always
be available, the USER bank is optional.
•
RESERVED: Non-Volatile-Memory
,
this memory contains a 32 bit Kill Password and a
32 bit Access Password.
•
EPC (Electronic Product Code): This bank contains the CRC-16 (cyclic redundancy
check), 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 of
a 96 bit EPC it has the size of 6 blocks.
•
TID (Transponder Identification): The TID memory contains data about the
manufacturer. Tags may contain specific data within the TID memory, beginning at
block 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 17
UDL5 - UHF mouse · Quick start manual
3 USER
[15:0]
… …
…
[N:N-15] [0:15] 192
2 TID
… … …
TID [15:0] [16:31] 129
TID [31:16] [0:15] 128
1 EPC
EPC [15:0]
… …
…
EPC [N:N-15] [32:47] 66
PC [15:0] [16:31] 65
CRC-16 [15:0] [0:15] 64
0 RESERVED
… … …
Access Password [15:0] [48:63] 3
Access Password [31:16] [32:47] 2
Kill Password [15:0] [16:31] 1
Kill Password [31:16] [0:15] 0
Bank No.
(decimal form)
Bank
Name
Block Memory Content
[MSB:LSB]
(decimal form)
Memory Bank
Addresses
[MSB:LSB] (decimal
form)
Block Address
(decimal form)