113730

© NXP B.V. 2007. All rights reserved.

Product data sheet

Rev. 3.0 — 14 March 2007

14 of 33

NXP Semiconductors

SL2 ICS53/SL2 ICS54

I•CODE SLI-S/I•CODE SLI-S HC

PUBLIC

8.1.3.5 64 bit password protection

Command Code = BBh

With the 64-bit Password Protection command the Label IC can 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 already been

transmitted with a Set Password command before.

If the 64-bit password protection is enabled both passwords are required for read & write

access to protected blocks (pages).

Table 20.

Request format

SOF

Flags

64 bit PWD

Parameter

IC Mfg code UID

CRC16

EOF

8 bits

8 bits

8 bits

64 bits

16 bits

8 bits

Table 21.

Response format when Error_flag is set

SOF

Flags

Error code

CRC16

EOF

8 bits

8 bits

16 bits

Table 22.

Response format when Error_flag is NOT set

SOF

Flags

CRC16

EOF

8 bits

16 bits