NXP Semiconductors
SL2S2602
ICODE SLIX2
SL2S2602 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2017. All rights reserved.
Product data sheet Rev. 4.1 — 25 July 2017
COMPANY PUBLIC 276341 21 / 55
Table 23. LOCK PASSWORD response format when Error_flag NOT set
SOF Flags CRC16 EOF
- 8 bits 16 bits -
9.5.3.5 64 BIT PASSWORD PROTECTION
Command code = BBh
The 64-bit PASSWORD PROTECTION command enables the Label IC to be instructed
that both of the Read and Write passwords are required to get access to password
protected blocks (pages). This mode can be enabled if the Read and Write passwords
have been transmitted first with a SET PASSWORD command.
If the 64-bit password protection is enabled, both passwords are required for read & write
access to protected blocks (pages).
Once the 64 bit password protection is enabled, a change back to 32-bit password
protection (read and write password) is not possible.
Remark: A retransmission of the passwords is not required after the execution of the 64-
bit PASSWORD PROTECTION command.
Remark: The 64-bit PASSWORD PROTECTION does not include the 16 bit counter
block.
The timing of the command is write alike.
Table 24. 64 BIT PASSWORD PROTECTION request format
SOF Flags 64 BIT
PASSWORD
PROTECTION
IC Mfg
code
UID CRC16 EOF
- 8 bits 8 bits 8 bits 64 bits
optional
16 bits -
Table 25. 64 BIT PASSWORD PROTECTION response format when Error_flag set
SOF Flags Error code CRC16 EOF
- 8 bits 8 bits 16 bits -
Table 26. 64 BIT PASSWORD PROTECTION response format when Error_flag NOT set
SOF Flags CRC16 EOF
- 8 bits 16 bits -
9.5.3.6 PROTECT PAGE
Command code = B6h
The PROTECT PAGE command defines the protection pointer address of the user
memory to divide the user memory into two arbitrarily sized pages and defines the
access conditions for the two pages.
