SL2S3003 datasheet(57/82 Pages) NXP

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NXP Semiconductors

SL2S3003/SL2S3003TT

ICODE 3 (TagTamper)

8.5.3.16 PASSWORD PROTECT EAS/AFI

Command code = A6h

The PASSWORD PROTECT EAS/AFI command enables the password protection for EAS and/or AFI. The

EAS/AFI password must be transmitted first with the SET PASSWORD command.

Option flag set to logic 0: EAS is password protected.

Option flag set to logic 1: AFI is password protected.

Both password protections (AFI and EAS) can be enabled separately.

Note: Independent of the Option flag, the write-alike command is executed like a write command with Option

flag 0. That is, option flag not set.

Once the EAS/AFI password protection is enabled, it is not possible to change back to unprotected EAS and/or

AFI.

The timing of the command is write alike (as write command with Option flag 0).

The password protection for EAS and/or AFI can be enabled also with a WRITE CONFIG command to set the

following bits set to 1 in the configuration memory:

OTP_EAS_PWD_EN bit in block 29: EAS is password protected.

OTP_AFI_PWD_EN bit in block 28: AFI is password protected.

Note: To avoid the unauthorized change of the EAS and AFI settings, password protect the EAS and AFI

functionality.

SOF

Flags

PASSWORD PROTECT

EAS/AFI

IC Mfg code

UID

CRC16

EOF

8 bits

64 bits optional

16 bits

Table 102. PASSWORD PROTECT EAS/AFI request format

SOF

Flags

Error code

CRC16

EOF

8 bits

16 bits

Table 103. PASSWORD PROTECT EAS/AFI response format when Error_flag set

SOF

Flags

CRC16

EOF

8 bits

16 bits

Table 104. PASSWORD PROTECT EAS/AFI response format when Error_flag NOT set

SL2S3003/SL2S3003TT

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Product data sheet

Rev. 3.0 — 28 March 2024

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