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ST95HF 数据表(PDF) 24 Page - STMicroelectronics |
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ST95HF 数据表(HTML) 24 Page - STMicroelectronics |
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24 / 93 page ![]() Commands ST95HF 24/93 DocID025630 Rev 4 ISO/IEC 18092 NFC Forum Tag Type 3 0x04 0 7:6 Transmission data rate 00 : RFU 01 : 212 Kbps 10 : 424 Kbps 11 : RFU >>>0x02020451 : ISO/IEC18092 tag, 212 Kbps transmission and reception rates with CRC appended. Parameter ‘Slot counter’ is not mandatory. If it is not present, it is assumed that SlotCounter = 0x00 (1 slot) For device detection commands, byte 1 bit 4 must be set to ‘0’. In this case, the FWT is 2.4 ms for the 1st slot and 1.2 ms more for each following slot, if slot counter is specified. If slot counter = 0x10, the ST95HF does not respect reply timings, but polls incoming data and searches a valid response during ~8.4 ms. 5:4 Reception data rate 00 : RFU 01 : 212 Kbps 10 : 424 Kbps 11 : RFU 3:1 RFU 0 Append CRC if set to ‘1’. (1) 1 7:5 RFU 4 0: FWT = 2.4 ms 1: FWT is specified by PP:MM bits 3:0 Slot counter 0 : 1 slot 1 : 2 slots … F : 16 slots 2 7:0 PP These 3 bytes are optional. Default value PP:MM:DD: is 0 and corresponds to RWT ~302µs. RWT = (2^PP)*(MM+1)* (DD+128)*32/13.56µs 37:0 MM 4 7:0 DD (optional to PP:MM) 1. It is recommended to set this bit to ‘1’. 2. Not characterized. Table 12. List of <Parameters> values for the PROTOCOLSELECT command for different protocols (Reader) (continued) Protocol Code Parameters Examples of commands Byte Bit Function |
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