The ICODE SLIX2 IC is the newest member of NXP’s SLIX product family. The chip is
fully backwards compatible to SLIX and offers an increased user memory size, along with
new outstanding features and performance:
- NXP originality signature
- Increased speed for Inventory management
- Increased reading range
- Increased robustness against detuning effects
- 2.5 kbit user memory size
- Flexible user memory segmentation with separate access conditions
- Password protected on chip service cycle counter
Contactless energy and data transfer
Whenever connected to a very simple and easy-to-produce type of antenna (as a result of
the 13.56 MHz carrier frequency) made out of a few windings printed, winded, etched or
punched coil, the ICODE SLIX2 IC can be operated without line of sight up to a distance
of 1.5 m (gate width). No battery is needed. When the smart label is positioned in the field
of an interrogator antenna, the high speed RF communication interface enables data to be
transmitted up to 53 kbit/s.
An intelligent anticollision function enables several tags to operate in the field
simultaneously. The anticollision algorithm selects each tag individually and ensures that
the execution of a transaction with a selected tag is performed correctly without data
corruption resulting from other tags in the field.
Security and privacy aspects
Unique IDentifier (UID):
The UID cannot be altered and guarantees the uniqueness of each label.
32 byte ECC based originality signature.
Password protected memory management (Read/Write access):
The user memory can be segmented into two pages and the access rights for
read/write access can be defined for each of them. This ensures that only authorized
users get read/write access to the protected parts of the user memory (anti
counterfeiting). READMULTIPLE BLOCK and (FAST) INVENTORY READ are
compatible to ICODE SLI and ICODE SLIX.
Password protected Label Destroy:
The 32-bit Destroy password enables an addressed label to be destroyed with the
DESTROY SLIX2 command. That status is irreversible and the label will never
respond to any command again.
Password protected Privacy Mode:
The 32-bit Privacy password enables a label to be set to the Privacy mode with the
ENABLE PRIVACY command. In this mode the label will not respond to any
command except the command GET RANDOM NUMBER, until it next receives the
correct Privacy password. This mode is especially designed to meet the increasing
demand to take care of the customers privacy.
Password protected EAS and AFI functionality:
The 32-bit EAS/AFI password enables the addressed label to be set in a mode where
the EAS status, the EAS ID and/or the AFI value can only be changed if the correct
EAS/AFI password needs to be transmitted before with the SET PASSWORD
16 bit counter:
The last block of the user memory provides a special feature - the 16 bit counter. The
counter can be increased by one with a WRITE command (optionally password
protected by the read password). The counter can be reset to an initial value with the