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ST25DV64K 数据表(PDF) 107 Page - STMicroelectronics |
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ST25DV64K 数据表(HTML) 107 Page - STMicroelectronics |
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107 / 200 page ![]() Figure 51. Get System Info frame exchange between VCD and ST25DVxxx SOF Get System info request VCD ST25DVxxx EOF SOF Get System info response EOF t1 7.6.23 Extended Get System Info When receiving the Extended Get System Info command, the ST25DVxxx sends back its information data in the response. The Option_flag is not supported. The Inventory_flag must be set to 0. The Extended Get System Info can be issued in both Addressed and Non Addressed modes. Table 161. Extended Get System Info request format Request SOF Request_flags Extended Get System Info Parameter request field UID (1) CRC16 Request EOF - 8 bits 0xx1xxxxb 8 bits 64 bits 16 bits - 1. This field is optional. • Request flags • Request parameters • UID (optional) Table 162. Parameter request list Bit Flag name Value Description b1 DSFID 0 No request of DSFID 1 Request of DSFID b2 AFI 0 No request of AFI 1 Request of AFI b3 VICC memory size 0 No request of data field on VICC memory size 1 Request of data field on VICC memory size b4 IC reference 0 No request of Information on IC reference 1 Request of Information on IC reference b5 MOI 1 Information on MOI always returned in response flag b6 VICC Command list 0 No request of Data field of all supported commands 1 Request of Data field of all supported commands b7 CSI Information 0 No request of CSI list 1 Request of CSI list b8 Extended Get System Info parameter Field 0 One byte length of Extended Get System Info parameter field ST25DV04K ST25DV16K ST25DV64K RF commands DS10925 - Rev 9 page 107/200 |
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