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ST95HF データシート(PDF) 73 Page - STMicroelectronics |
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ST95HF データシート(HTML) 73 Page - STMicroelectronics |
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73 / 93 page  DocID025630 Rev 4 73/93 ST95HF Examples of ST95HF command code to activate NFC Forum and ISO/IEC 15693 tags 92 REM, Tag 2 --> UID = 043B114AEF2280 REM, Response When 2 tags are present NVB = nb Byte OK + nb bit OK REM, Collision B8 REM, First Byte Coll 02 (3 eme Byte) (8804 ok) REM, Index bit Coll 04 (5eme bit) => SN finish by 0 or 1 REM, set NVB = 45 REM, REQA Poll field with Two tags In operating volume >>> CR95HFDLL_STCMD, 01 04022607 <<< 80 05 4403 280000 REM, Ant CL1 Collision Detection (NVB 20) none data on UID REM, Response Flag F1=B8 F2=02 F3=04 REM, F1=B8 collision detected 8 bits significatifs in first byte of response REM, F2=02 collision detected in 3rd response byte, index start at 0 REM, F3=04 collision detected on 5th bit, index start at 0 >>> CR95HFDLL_STCMD, 01 0403932008 <<< 80 08 88047B75B7 B80204 REM, Collision Management Usage of split frame with NVB = 45 4bytes OK + 5 lsb bit OK in next byte REM, last bit (collision one) arbitrary fixed to select only one branch of UID tree REM, padding of last byte with zeros as msb (tranmission lsb first) 0B REM, command flag 45 usage of Split Frame (4) with 5 bits significatif in last byte REM, uncomplete response byte is padded with 0 as lsb bits REM, Response Flag F1=23 F2=00 F3=00 REM, F1=23, No collision REM, 3 bit significatif (msb last received bits) in first response byte 40 REM, F2=00, not significant REM, F3=00, not significant >>> CR95HFDLL_STCMD, 01 0406934588040B45 |
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