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ST25TV02K 数据表(PDF) 52 Page - STMicroelectronics |
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ST25TV02K 数据表(HTML) 52 Page - STMicroelectronics |
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52 / 90 page  Table 91. Write Password response format when Error_flag is NOT set Response SOF Response_flags CRC16 Response EOF - 8 bits 16 bits - Response parameter: • no parameter. Table 92. Write Password response format when Error_flag is set Response SOF Response_flags Error code CRC16 Response EOF - 8 bits 8 bits 16 bits - Response parameter: • Error code as Error_flag is set: – 02h: command not recognized – 03h: command option not supported – 10h: the password number is incorrect – 12h: update right not granted, Present Password command not previously executed or password locked – 14h: block was not successfully programmed Figure 25. Write Password frame exchange between VCD and ST25TV02K/512 SOF Write Password request VCD EOF ST25TV02K/512 t1 SOF Write Password response EOF SOF EOF ST25TV02K/512 Wt Write sequence when error Write Password response 6.4.21 Present Password On receiving the Present Password command, the ST25TV02K/512 compare the requested password with the data contained in the request and report if the operation has been successful in the response. Refer to Section 5.2 Data protection for details on password management. After a successful command, the security session associated to the password is open as described in Section 5.2 Data protection. Table 93. Present Password request format Request SOF Request_flags Present Password IC Mfg code UID (1) Password number Password CRC16 Request EOF - 8 bits B3h 02h 64 bits 8 bits 32 or 64 bits 16 bits - 1. The field is optional. Request parameters: ST25TV02K ST25TV512 RF commands DS12074 - Rev 11 page 52/90 |
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