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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ST25DV64KC 데이터시트(PDF) 128 Page - STMicroelectronics |
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ST25DV64KC 데이터시트(HTML) 128 Page - STMicroelectronics |
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128 / 203 page  Figure 70. Write Password frame exchange between VCD and ST25DVxxKC SOF Write Password request VCD EOF ST25DVxxKC t1 SOF Write Password response EOF SOF EOF ST25DVxxKC Wt Write sequence when error Write Password response 7.6.36 Present Password On receiving the Present Password command, the ST25DVxxKC compares the requested password with the data contained in the request and reports if the operation has been successful in the response. Refer to Section 5.6 Data protection for details on password Management. After a successful command, the security session associate to the password is open as described in Section 5.6 Data protection. The Option_flag is not supported, and the Inventory_flag must be set to 0. Table 213. Present Password request format Request SOF Request_flags Present Password IC Mfg code UID (1) Password number Password CRC16 Request EOF - 8 bits B3h 02h 64 bits 8 bits 64 bits 16 bits - 1. This field is optional. Request parameter: • Request flags • UID (optional) • Password Number: – 00h = RF configuration password RF_PWD_0 – 01h = RF_PWD_1 – 02h = RF_PWD_2 – 03h = RF_PWD_3 – other = Error • Password Table 214. Present Password response format when Error_flag is NOT set Response SOF Response_flags CRC16 Response EOF - 8 bits 16 bits - Response parameter: • No parameter. The response is sent back after the write cycle. ST25DV04KC ST25DV16KC ST25DV64KC RF commands DS13519 - Rev 3 page 128/203 |
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