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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ST25DV64KC Scheda tecnica(PDF) 106 Page - STMicroelectronics |
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ST25DV64KC Scheda tecnica(HTML) 106 Page - STMicroelectronics |
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106 / 203 page  Response parameter: • No parameter Table 156. Write DSFID 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 is not supported – 0Fh: error with no information given – 12h: the specified block is locked and its contents cannot be changed – 13h: the specified block was not successfully programmed Figure 55. Write DSFID frame exchange between VCD and ST25DVxxKC SOF Write DSFID request VCD EOF ST25DVxxKC t1 SOF Write DSFID response EOF SOF EOF ST25DVxxKC Wt Write sequence when error Write DSFID response 7.6.21 Lock DSFID On receiving the Lock DSFID request, the ST25DVxxKC locks the DSFID value permanently. When the Option_flag is set, wait for EOF to respond. The Inventory_flag must be set to 0. During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%), otherwise the ST25DVxxKC may not lock correctly the DSFID value in memory. The Wt time is equal to t1nom + N × 302 µs (N is an integer). Table 157. Lock DSFID request format Request SOF Request_flags Lock DSFID UID (1) CRC16 Request EOF - 8 bits 2Ah 64 bits 16 bits - 1. This field is optional. Request parameter: • Request flags • UID (optional) ST25DV04KC ST25DV16KC ST25DV64KC RF commands DS13519 - Rev 3 page 106/203 |
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