SL2S5302_SL2S5402 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.2 — 27 August 2012
192132 15 of 35
NXP Semiconductors
SL2S5302; SL2S5402
ICODE SLIX-S
8.4.3.5 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 PROTECT EAS/AFI command.
The timing of the command is write alike.
Table 18. Password identifier
Password identifier Password
01h Read
02h Write
04h Privacy
08h Destroy SLIX-S
10h EAS/AFI
Table 19. Response format when Error_flag set
SOF Flags Error code CRC16 EOF
- 8 bits 8 bits 16 bits -
Table 20. Response format when Error_flag NOT set
SOF Flags CRC16 EOF
- 8 bits 16 bits -
Table 21. 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 22. Response format when Error_flag set
SOF Flags Error code CRC16 EOF
- 8 bits 8 bits 16 bits -
Table 23. Response format when Error_flag NOT set
SOF Flags CRC16 EOF
- 8 bits 16 bits -
