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M66596FP Datasheet(PDF) 38 Page - Renesas Technology Corp |
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M66596FP Datasheet(HTML) 38 Page - Renesas Technology Corp |
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38 / 131 page ![]() M66596FP/WG rev .1.00 2006.3.14 page 38 of 127 2.10 Frame number register Frame number register [FRMNUM] <Address: 4CH> 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 OVRN CRCE SOFRM FRNM 0 0 - 0 0 0 - 0 ? ? ? ? ? ? ? ? 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 0 0 - 0 Bit Name Function S/W H/W Note 15 OVRN Overrun / Underrun 0: No error 1: Error issued R/W(0) W 2.10.1 *1) 14 CRCE Reception data error 0: No error 1: Error issued R/W(0) W 2.10.1 13-12 Nothing is placed here. These should be fixed at “0”. 11 SOFRM Frame number update interrupt mode 0: Interrupt asserted upon SOF reception and timer interpolation. 1: Interrupt asserted if SOF is damaged or missing. R/W R 2.10.2 3.2.8 *1) 10-0 FRNM Frame number The frame number can be confirmed. R W 2.10.2 <<Note>> *1) Frame number update interrupts are not issued for uSOF packet detection other than “UFRNM=0”. micro frame number register [UFRMNUM] <Address: 4EH> 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 UFRNM ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 0 0 - 0 0 0 - 0 0 0 - 0 Bit Name Function S/W H/W Note 15-3 Nothing is placed here. These should be fixed at "0". 2-0 UFRNM micro frame The micro frame number can be confirmed. R W 2.10.2 *2) <<Note>> *2) When using Full-Speed operation, “000” is normally read with this bit. |
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