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ST25DV64K 数据表(PDF) 114 Page - STMicroelectronics |
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ST25DV64K 数据表(HTML) 114 Page - STMicroelectronics |
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114 / 200 page  7.6.26 Read Configuration On receiving the Read Configuration command, the ST25DVxxx reads the static system configuration register at the Pointer address and sends back its 8-bit value in the response. The Option_flag is not supported. The Inventory_flag must be set to 0. Table 181. Read Configuration request format Request SOF Request_flags Read Configuration IC Mfg code UID (1) Pointer CRC16 Request EOF - 8 bits A0h 02h 64 bits 8 bits 16 bits - 1. This field is optional. Note: Please refer to Table 11. System configuration memory map for details on register addresses. Request parameters: • System configuration register pointer • UID (optional) Table 182. Read Configuration response format when Error_flag is NOT set Response SOF Response_flags Register value CRC16 Response EOF - 8 bits 8 bits 16 bits - Response parameters: • One byte of data: system configuration register Table 183. Read Configuration 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: the option is not supported – 10h: block not available – 0Fh: error with no information given Figure 55. Read Configuration frame exchange between VCD and ST25DVxxx SOF Read Configuration request VCD ST25DVxxx EOF SOF Read Configuration response EOF t1 ST25DV04K ST25DV16K ST25DV64K RF commands DS10925 - Rev 9 page 114/200 |
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