LRIS2K-A1S/1GE STMicroelectronics, LRIS2K-A1S/1GE Datasheet - Page 16

• Manufacturer Part Number: LRIS2K-A1S/1GE
• Description: IC MEMORY TAG 64BIT UID ADH ANT
• Manufacturer: STMicroelectronics
• Series: LRIS2Kr

Specifications of LRIS2K-A1S/1GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO15693, ISO18000-3, 2048-bits
• Package / Case: 76mm x 45mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5534-2

LRIS2K block security
16/98
The LRIS2K password protection is organized around a dedicated set of commands plus a
system area of four password blocks where the password values and the Kill code are
stored. Each password block also has a Protect Status area, making it possible to set the
Read / Write access right of each individual block. This system area is described in
Table 6.
The dedicated password commands are:
●
●
●
Add
0
1
2
3
Write Password:
The Write Password command is used to write a 32-bit block into the password system
area. This command must be used to write or update password values and to set the
kill code. Depending on the Read/Write access set in the Protect Status area, it is
possible to modify a password value after issuing a valid Present Password command.
Lock Password:
The Lock Password command is used to set the Protect Status area of the selected
block. Bits b
The Block Lock bit, b
command, the protection settings of the selected block are activated. The protection of
a locked block cannot be changed. A Lock Password command sent to a locked block
returns an error code.
The Lock Password command is also used to set the Protect Status areas of the
password blocks. RFU bit 8 of the Request_flag is used to select either the memory
area (bit 8 = ‘0’) or the password area (bit 8 = ‘1’).
Present Password:
The Present Password command is used to present one of the three passwords to the
LRIS2K in order to modify the access rights of all the memory blocks linked to that
password
the access rights remain activated until the tag is powered off or until a new Present
Password command is issued.
0
Password system area
(Table
4
to b
7 8
5) including the password itself. If the presented password is correct,
1
of the Protect Status are affected by the Lock Password command.
0
, is set to ‘1’ automatically. After issuing a Lock Password
Doc ID 13888 Rev 8
Password 1
Password 2
Password 3
Kill code
15 16
23 24
31
Protect status
5 bits
5 bits
5 bits
5 bits
LRIS2K
Table
6.