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LXT310 Datasheet(PDF) 8 Page - Level One |
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LXT310 Datasheet(HTML) 8 Page - Level One |
8 / 18 page /;7êìí 7ì &68î,6'1 35, 7UDQVFHLYHU êðå L1 ï +DUGZDUH 0RGH 2SHUDWLRQ In Hardware Mode the transceiver is accessed and con- trolled through individual pins. With the exception of the INT and CLKE functions, Hardware Mode provides all the functions provided in the Host Mode. In the Hardware Mode RPOS/RNEG or RDATA outputs are valid on the rising edge of RCLK. The LXT310 operates in Hardware Mode only when MODE is set Low or connected to RCLK. 'LDJQRVWLF 0RGH 2SHUDWLRQ 7UDQVPLW $OO 2QHV ,Q 7UDQVPLW $OO 2QHV õ7$26ô 0RGHñ WKH 7326 DQG 71(* LQSXWV WR WKH WUDQVFHLYHU DUH LJQRUHG DQG WKH WUDQVFHLYHU WUDQVPLWV D FRQWLQXRXV VWUHDP RI RQHV DW WKH 7&/. IUHTXHQF\ï õ,I 7&/. LV QRW SURYLGHGñ 7$26 LV ORFNHG WR WKH 0&/.ïô 7KLV FDQ EH XVHG DV WKH %OXH $ODUP ,QGLFDWRU õ$,6ôï ,Q +RVW 0RGHñ 7$26 LV FRPPDQGHG E\ ZULWLQJ D RQH WR ELW 'æ RI WKH LQSXW GDWD E\WHï ,Q +DUGZDUH 0RGHñ 7$26 LV FRPPDQGHG E\ VHWWLQJ SLQëå+LJKï 7$26 FDQ EH FRPPDQGHG VLPXOWDQHRXVO\ ZLWK /RFDO /RRSEDFNñ EXW LV LQKLELWHG GXULQJ 5HPRWH /RRSEDFNï /RFDO /RRSEDFN /RFDO /RRSEDFN õ//223ô LV GHVLJQHG WR H[HUFLVH WKH PD[LPXP QXPEHU RI IXQFWLRQDO EORFNVï 'XULQJ //223 RSHUDWLRQñ WKH 57,3î55,1* LQSXWV IURP WKH OLQH DUH GLVFRQQHFWHGï ,QVWHDGñ WKH WUDQVPLW RXWSXWV DUH URXWHG EDFN LQWR WKH UHFHLYH LQSXWVï 7KLV WHVWV WKH HQFRGHUVîGHFRGHUVñ MLWWHU DWWHQXDWRUñ WUDQVPLWWHUñ UHFHLYHU DQG WLPLQJ UHFRYHU\ VHFWLRQVï ,Q +RVW 0RGHñ /RFDO /RRSEDFN LV FRPPDQGHG E\ ZULWLQJ D RQH WR ELW 'ç RI WKH LQSXW GDWD E\WHï ,Q +DUGZDUH 0RGHñ /RFDO /RRSEDFN LV FRPPDQGHG E\ VHWWLQJ SLQëæ+LJKï ,I 7$26 DQG //223 DUH ERWK VHWñ WKH $OO 2QHV SDWWHUQ LV WUDQVPLWWHG RQWR WKH OLQH ZKLOH WKH 7326î71(* LQSXW GDWD LV ORRSHG EDFN WR WKH 5326î51(* RXWSXWVï 5HPRWH /RRSEDFN ,Q 5HPRWH /RRSEDFN õ5/223ô 0RGHñ WKH WUDQVPLW GDWD DQG FORFN LQSXWV õ7&/. DQG 7326î71(* RU 7'$7$ô DUH LJQRUHGñ DQG WKH LQðOLQH HQFRGHUV DQG GHFRGHUV DUH E\SDVVHGï 7KH 5326î51(* RU 5'$7$ RXWSXWV DUH ORRSHG EDFN WKURXJK WKH WUDQVPLW FLUFXLWV DQG RXWSXW RQ 77,3 DQG 75,1* DW WKH 5&/. IUHð TXHQF\ï 5HFHLYHU FLUFXLWV DUH XQDIIHFWHG E\ WKH 5/223 FRPPDQG DQG FRQWLQXH WR RXWSXW WKH 5&/. DQG 5326î51(* RU 5'$7$ VLJQDOV UHFHLYHG IURP WKH WZLVWHGðSDLU OLQHï ,Q +RVW 0RGHñ 5HPRWH /RRSð EDFN LV FRPPDQGHG E\ ZULWLQJ D RQH WR ELW 'è RI WKH LQSXW GDWD E\WHï ,Q +DUGZDUH 0RGHñ 5HPRWH /RRSð EDFN LV FRPPDQGHG E\ VHWWLQJ SLQëç+LJKï 1HWZRUN /RRSEDFN 1HWZRUN /RRSEDFN FDQ EH FRPPDQGHG IURP WKH QHWð ZRUN ZKHQ WKH 1HWZRUN /RRSEDFN GHWHFW IXQFWLRQ LV HQDEOHGï ,Q +RVW 0RGHñ 1HWZRUN /RRSEDFN õ1/223ô GHWHFWLRQ LV HQDEOHG E\ VLPXOWDQHRXVO\ ZULWLQJ RQHV WR 5/223ñ //223 DQG 7$26ñ WKHQ ZULWLQJ ]HURV LQ WKH QH[W F\FOHï ,Q +DUGZDUH 0RGHñ 1HWZRUN /RRSEDFN GHWHFWLRQ LV HQDEOHG E\ KROGLQJ 5/223ñ //223 DQG 7$26 +LJK VLPXOWDQHRXVO\ IRU ëíí QV WKHQ EULQJLQJ WKHP /RZñ RU E\ W\LQJ 5&/. WR 5/223ï 1/223 GHWHFWLRQ PD\ EH GLVDEOHG E\ UHVHWWLQJ WKH FKLSï :KHQ 1/223 GHWHFWLRQ LV HQDEOHGñ WKH UHFHLYHU PRQð LWRUV WKH LQSXW GDWD VWUHDP IRU WKH 1/223 GDWD SDWð WHUQV õííííì HQDEOHñ ííì GLVDEOHôï :KHQ DQ 1/223 HQDEOH GDWD SDWWHUQ LV UHSHDWHG IRU D PLQLPXP RI ILYH VHFRQGV õZLWK ìíðê %(5ôñ WKH GHYLFH EHJLQV UHPRWH ORRSEDFN RSHUDWLRQï 7KH /;7êìí UHVSRQGV WR ERWK IUDPHG DQG XQIUDPHG 1/223 SDWWHUQVï 2QFH UHPRWH QHWZRUN ORRSEDFN GHWHFWLRQ LV HQDEOHG DW WKH FKLS DQG DFWLYDWHG E\ WKH FRUUHFW GDWD SDWWHUQñ LW LV LGHQWLFDO WR UHPRWH ORRSEDFN LQLWLDWHG DW WKH FKLSï 1/223 LV UHVHW E\ UHFHLYLQJ WKH GLVDEOH SDWWHUQ IRU è VHFRQGVñ RU E\ DFWLYDWLRQ RI 5/223ï 1/223 LV WHPð SRUDULO\ LQWHUUXSWHG E\ //223ñ EXW WKH 1/223 VWDWH LV QRW UHVHWï 7DEOH êã /;7êìí 6HULDO 'DWD 2XWSXW %LWV õ6HH )LJXUH éô %LW 'è %LW 'ç %LW 'æ 6WDWXV í í í 5HVHW KDV RFFXUUHGñ RU QR SURJUDP LQSXWï í í ì 7$26 LV DFWLYHï í ì í /RFDO /RRSEDFN LV DFWLYHï í ì ì 7$26 DQG /RFDO /RRSEDFN DUH DFWLYHï ì í í 5HPRWH /RRSEDFN LV DFWLYHï ìí ì '30 KDV FKDQJHG VWDWH VLQFH ODVW &OHDU '30 RFFXUUHGï ì ì í /26 KDV FKDQJHG VWDWH VLQFH ODVW &OHDU /26 RFFXUUHGï ì ì ì /26 DQG '30 KDYH ERWK FKDQJHG VWDWH VLQFH ODVW &OHDU '30 DQG &OHDU /26 RFFXUUHGï |
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