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ST25TV02K 数据表(PDF) 35 Page - STMicroelectronics |
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ST25TV02K 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 90 page ![]() Figure 10. Stay Quiet frame exchange between VCD and ST25TV02K/512 SOF Stay Quiet request VCD ST25TV02K/512 EOF 6.4.6 Read Single Block On receiving the Read Single Block command, the ST25TV02K/512 read the requested block and sends back its 32-bit value in the response. The Option_flag is supported, when set response include the Block Security Status. Block number is coded on 1 Byte. Table 44. Read Single Block request format Request SOF Request_flags Read Single Block UID (1) Block number CRC16 Request EOF - 8 bits 20h 64 bits 8 bits 16 bits - 1. The field is optional. Request parameters: • Request flags • UID (optional) • Block number Table 45. Read Single Block response format when Error_flag is NOT set Response SOF Response_flags Block security status (1) Data CRC16 Response EOF - 8 bits 8 bits 32 bits 16 bits - 1. The field is optional. Response parameters: • Block security status if Option_flag is set (see Table 46. Block security status) • Four bytes of block data Table 46. Block security status b7 b6 b5 b4 b3 b2 b1 b0 Reserved for future use. All at 0. 0: Current block not locked 1: Current block locked Table 47. Read Single Block response format when Error_flag is set Response SOF Response_flags Error code CRC16 Response EOF - 8 bits 8 bits 16 bits - Response parameter: ST25TV02K ST25TV512 RF commands DS12074 - Rev 11 page 35/90 |
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