SL2S1412_SL2S1512_SL2S1612 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.2 — 8 October 2013
167732 10 of 29
NXP Semiconductors
SL2S1412; SL2S1512; SL2S1612
ICODE ILT-M
10. Memory configuration
This section contains all information including commands by which a reader selects,
inventories, and accesses a ICODE ILT-M population
An interrogator manages ICODE ILT-M equipped tag populations using three basic
operations. Each of these operations comprises one or more commands. The operations
are defined as follows
Select: The process by which an interrogator selects a tag population for inventory
and access. Interrogators may use one or more Select commands to select a
particular tag population prior to inventory.
Inventory: The process by which an interrogator identifies ICODE ILT-M equipped tags.
An interrogator begins an inventory round by transmitting a BeginRound
command in one of two sessions. One or more tags may reply. The
interrogator detects a single tag reply and requests the PC, EPC, and
CRC-16 from the chip. An inventory round operates in one and only one
session at a time. For an example of an interrogator inventorying and
accessing a single tag refer to Section 18
, Ref. 2.
Access: The process by which an interrogator transacts with (reads from or writes to)
individual tags. An individual tag must be uniquely identified prior to access.
Access comprises multiple commands, some of which employ one-time-pad
based cover-coding of the R=>T link.
10.1 Memory
For the general memory layout according to the standard Section 18, Ref. 2. The tag
memory is logically subdivided into four distinct banks.
In accordance to the standard Section 18
, Ref. 2. The tag memory of the ICODE ILT-M is
organized in following 4 memory sections:
The logical address of all memory banks begin at zero (00h).
Table 5. Memory sections
Name Size Bank
Reserved memory (32-bit ACCESS and 32-bit KILL password) 64 bit 00b
EPC (excluding 16 bit CRC-16 and 16-bit PC) 240 bit 01b
TID (including unique 48 bit serial number) 96 bit 10b
User memory 512 bit 11b
