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ST25DV04KC Datasheet(PDF) 95 Page - STMicroelectronics |
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ST25DV04KC Datasheet(HTML) 95 Page - STMicroelectronics |
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95 / 203 page  Response parameter: • No parameter Table 127. Extended Lock 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 – 03h: command option not supported – 10h: block not available – 11h: the specified block is already locked and thus cannot be locked again – 14h: the specified block was not successfully locked Figure 46. Extended Lock block frame exchange between VCD and ST25DVxxKC SOF Extended Lock block request VCD EOF ST25DVxxKC t1 SOF Extended Lock block response EOF SOF Extended Lock block response EOF ST25DVxxKC Wt Lock sequence when error 7.6.12 Read Multiple Blocks When receiving the Read Multiple Block command, the ST25DVxxKC reads the selected blocks and sends back their value in multiples of 32 bits in the response. The blocks are numbered from 00h to FFh in the request and the value is minus one (–1) in the field. For example, if the “Number of blocks” field contains the value 06h, seven blocks are read. The maximum number of blocks is fixed at 256. Read Multiple Blocks command can cross areas borders, and returns all blocks until reaching a non readable block (block read protected or out of memory). When the Option_flag is set, the response returns the Block Security Status. The Inventory_flag must be set to 0. Block number is coded on 1 Byte and only first 256 blocks of ST25DV16KC and ST25DV64KC can be addressed using this command. Table 128. Read Multiple Block request format Request SOF Request_flags Read Multiple Block UID (1) First block number Number of blocks CRC16 Request EOF - 8 bits 23h 64 bits 8 bits 8 bits 16 bits - 1. The field is optional. ST25DV04KC ST25DV16KC ST25DV64KC RF commands DS13519 - Rev 3 page 95/203 |
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