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ST25DV04KC Datasheet(PDF) 105 Page - STMicroelectronics |
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ST25DV04KC Datasheet(HTML) 105 Page - STMicroelectronics |
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105 / 203 page  Table 153. Lock AFI 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 – 11h: the specified block is already locked and thus cannot be locked again – 14h: the specified block was not successfully locked Figure 54. Lock AFI frame exchange between VCD and ST25DVxxKC SOF Lock AFI request VCD EOF ST25DVxxKC t1 SOF Lock AFI response EOF SOF EOF ST25DVxxKC Wt Lock sequence when error Lock AFI response 7.6.20 Write DSFID On receiving the Write DSFID request, the ST25DVxxKC programs the 8-bit DSFID value to its memory. 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 write correctly the DSFID value in memory. The Wt time is equal to t1nom + N × 302 µs (N is an integer). Table 154. Write DSFID request format Request SOF Request_flags Write DSFID UID (1) DSFID CRC16 Request EOF - 8 bits 29h 64 bits 8 bits 16 bits - 1. This field is optional. Request parameter: • Request flags • UID (optional) • DSFID Table 155. Write DSFID response format when Error_flag is NOT set Response SOF Response_flags CRC16 Response EOF - 8 bits 16 bits - ST25DV04KC ST25DV16KC ST25DV64KC RF commands DS13519 - Rev 3 page 105/203 |
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