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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ST25DV64K Scheda tecnica(PDF) 125 Page - STMicroelectronics |
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ST25DV64K Scheda tecnica(HTML) 125 Page - STMicroelectronics |
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125 / 197 page  Table 216. Fast 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: • Error code as Error_flag is set: – 02h: command not recognized – 03h: command option not supported – 0Fh: error with no information given – 10h: the specified block is not available – 15h: the specified block is read-protected Figure 66. Fast Read Single Block frame exchange between VCD and ST25DVxxx SOF Fast Read Single Block request VCD ST25DVxxx EOF SOF Fast Read Single Block response EOF t1 7.6.38 Fast Extended Read Single Block On receiving the Fast Extended Read Single Block command, the ST25DVxxx reads the requested block and sends back its 32-bit value in the response. When the Option_flag is set, the response includes the Block Security Status. The data rate of the response is multiplied by 2. The subcarrier_flag should be set to 0, otherwise the ST25DVxxx answers with an error code. The Inventory_flag must be set to 0. Block number is coded on 2 Bytes so all memory blocks of ST25DV16K-xx and ST25DV64K-xx can be addressed using this command Table 217. Fast Extended Read Single Block request format Request SOF Request_flags Fast Extended Read Single Block IC Mfg code UID (1) Block number CRC16 Request EOF - 8 bits C4h 02h 64 bits 16 bits 16 bits - 1. This field is optional. Request parameters: • Request flags • UID (optional) • Block number (from LSB byte to MSB byte) Table 218. Fast Extended 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 - ST25DV04K ST25DV16K ST25DV64K RF commands DS10925 - Rev 11 page 125/197 |
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