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NTP53X2 Datasheet(PDF) 70 Page - NXP Semiconductors |
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NTP53X2 Datasheet(HTML) 70 Page - NXP Semiconductors |
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70 / 133 page  NXP Semiconductors NTP53x2 NTAG 5 link - NFC Forum-compliant I2C bridge NTP53x2 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved. Product data sheet Rev. 3.3 — 3 July 2020 COMPANY PUBLIC 544533 70 / 133 The timing of the command is write alike. Option_flag = 0b and Option_flag = 1b is supported and is in accordance with ISO/IEC 15693 write-alike commands. Table 131. LOCK PASSWORD request format Flags LOCK PASSWORD Manuf. code UID Password identifier CRC16 8 bits 8 bits 8 bits 64 bits (optional) 8 bits 16 bits Table 132. LOCK PASSWORD response format when Error_flag is NOT set Flags CRC16 8 bits 16 bits Table 133. LOCK PASSWORD response format when Error_flag is set Flags Error Code CRC16 8 bits 8 bits 16 bits 8.2.3.3.5 64 BIT PASSWORD PROTECTION Command code = BBh The 64-bit PASSWORD PROTECTION command enables NTAG 5 link to be instructed that both, Read and Write passwords are required to get access to password protected blocks. 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. 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. Option_flag = 0b and Option_flag = 1b is supported and is in accordance with ISO/IEC 15693 write-alike commands. Table 134. 64 BIT PASSWORD PROTECTION request format Flags 64 BIT PASSWORD PROTECTION Manuf. code UID CRC16 8 bits 8 bits 8 bits 64 bits (optional) 16 bits |
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