Rockwell-automation 56RF RFID System User Manual Manual de usuario descargar pdf (Pagina 23)

Rockwell Automation Publication 56RF-UM001A-EN-P - October 2011 23

RFID Components Chapter 2

Smart Label IC – Lean (SLI-L)

The SLI-L is used in applications that require smaller memory size. The 512 bit

EEPROM memory is divided into 16 blocks. A block is the smallest access unit.

Each block consists of 4 bytes (1block=32 bits). Four blocks are summed up to

one page. Bit 0 in each byte represents the least significant bit (LSB) and bit 7 the

most significant bit (MSB), respectively.

The memory is divided into two parts:

• Configuration Area: This memory area stores all required information,

such as UID, write protection, passwords, etc. Direct access to this

memory area is not possible.

•User Memory: This memory area stores user data. Direct read/write

access to this part of the memory is possible depending on the related write

protection conditions.

The table below shows the memory organization of an SLI-L tag.

Table 13 - SLI-L Memory Organization

Page Block Byte 0 Byte 1 Byte 2 Byte 3 Description

-2 -8 Configuration area for internal use

-7

-6

-5

-1 -4

-3

-2

-1

00 User Memory

2 pages

4 blocks per page

4 bytes per block

Total: 32 bytes

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 155 156

Sin comentarios

Rockwell-automation 56RF RFID System User Manual Manual de usuario Pagina 23