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ST25TV02K Folha de dados(PDF) 19 Page - STMicroelectronics |
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ST25TV02K Folha de dados(HTML) 19 Page - STMicroelectronics |
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19 / 90 page ![]() Figure 7. Nominal EAS operation RF Reader ST25TV Write Single (EAS, EAS block x) EAS – Normal operation EAS deactivated (reset) Write EAS config Write EAS ID Lock EAS Set EAS Reset EAS (if not locked) Enable EAS (selective ID or none) If selected: EAS ID or telegram EAS ready EAS deactivated (reset) Optional step Repeated based on EAS telegram size By default, the EAS configuration (EAS telegram, EAS ID, EAS configuration, lock EAS, EAS mode) is not write protected. The EAS configuration can be write protected by the configuration password (PWD_CFG) by writing 1b1 into the W_PROTECTION_EAS (EAS_SEC register). If W_PROTECTION_EAS bit is set, the EAS configuration can be changed only if the configuration password has been presented just before in the same RF session. Write access to the EAS configuration can be locked by executing the lock_EAS command. User cannot unlock system configuration if the EAS configuration has already been locked earlier with the Lock_EAS command, even after opening configuration security session (Lock is definitive). ST25TV02K ST25TV512 Electronic article surveillance (EAS) DS12074 - Rev 11 page 19/90 |
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