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ST25TV02K Datasheet(PDF) 47 Page - STMicroelectronics |
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ST25TV02K Datasheet(HTML) 47 Page - STMicroelectronics |
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47 / 90 page  Table 78. Get System info response format Error_flag is NOT set Response SOF Response flags Information flags UID DSFID AFI VICC memory size IC ref. CRC16 Response EOF - 00h 0Fh 64 bits 8 bits 8 bits 16 bits 48h 16 bits - Response parameters: • Information flags set to 0Fh. DSFID, AFI, VICC memory size (16 bits), and IC reference fields are present. • VICC memory size - possible values are: – 033Fh for ST25TV02K – 030Fh for ST25TV512 Note: The first byte is in both cases 03h. It corresponds to a block size of 4 bytes. The 2nd byte is 3Fh when ST25TV has 64 blocks and 0Fh when ST25TV has 16 blocks. • UID code on 64 bits • DSFID value • AFI value • ST25TV02K/512 IC reference: the 8 bits are significant. Table 79. Get System Info response format when Error_flag is set Response SOF Response_flags Error code CRC16 Response EOF - 01h 8 bits 16 bits - Response parameter: • Error code as Error_flag is set: – 03h: Option not supported Figure 21. Get System Info frame exchange between VCD and ST25TV02K/512 SOF Get System info request VCD ST25TV02K/512 EOF SOF Get System info response EOF t1 6.4.17 Get Multiple Block Security Status When receiving the Get Multiple Block Security Status command, the ST25TV02K/512 send back its security status for each address block: 0 when block is writable else 1 when block is locked for writing. The blocks security status are defined by the area security status (and the lock block status). The blocks are numbered from 00h up to the maximum memory block number in the request, and the value is minus one (–1) in the field. For example, a value of “06” in the “Number of blocks” field requests will return the security status of seven blocks. This command does not respond an error if number of blocks overlap areas. The number of blocks is coded on 1 Byte and only first 256 blocks of ST25TV02K/512 can be addressed using this command. ST25TV02K ST25TV512 RF commands DS12074 - Rev 11 page 47/90 |
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