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ST25TV02K 数据表(PDF) 69 Page - STMicroelectronics |
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ST25TV02K 数据表(HTML) 69 Page - STMicroelectronics |
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69 / 90 page ![]() Request parameters: • Request flags • UID (optional) • Password Number = 00h • Crypted Password Table 146. Enable untraceable mode response format when Error_flag is NOT set Request SOF Response_flags CRC16 request EOF - 8 bits 16 bits - Response parameter: No response: under unauthorized request flags and request parameters Table 147. Enable untraceable mode response format when Error_flag is set Request SOF Response_flags Error code CRC16 request EOF - 8 bits 8 bits 16 bits - Response parameter: • Error code as Error_flag is set – 03h: command option is not supported – 0Fh: error with no information given – 10h: password number is not 00h – 13h: the EAS configuration was not successfully programmed 6.4.40 Get Random Number When ST25TV02K/512 receive the Get Random Number command, ST25TV02K/512 return a 16 bit random number. A power on reset cycle (transition to RF field off, then RF field on, followed by tBoot_RF) must be done just before sending the Get Random Number Request. Table 148. Get random number request format Request SOF Request_flags Get random number IC Mfg code UID (1) CRC16 request EOF - 8 bits B4h 02h 64 bits 16 bits - 1. The field is optional. Request parameters: • Request flags • UID (optional) Table 149. Get random number response format when Error_flag is NOT set Request SOF Response_flags Random number CRC16 request EOF - 8 bits 16 bits 16 bits - Response parameter: • Random number ST25TV02K ST25TV512 RF commands DS12074 - Rev 11 page 69/90 |
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