240 muri USB3.2 isanzwe, USB3.1 interineti yitwa USB3.2 Gen 2, naho USB3.0 yambere yambere yitwa USB3.2 Gen 1, urebye guhuza, USB3.2 Gen 1 yihuta ni 5Gbps, USB3.2 Umuvuduko wa Gen2 ni 10Gbps, USB3.2 Gen2x2 yihuta yohereza ni 20Gbps, bityo USB3.1 Gen1 na USB3.0 ibisobanuro bishya bishobora gusobanurwa nkikintu kimwe, ariko izina riratandukanye.Gen1 na Gen2 byumvikana ko bivuze ko uburyo bwa kodegisi butandukanye, imikoreshereze yumurongo iratandukanye, kandi Gen1 na Gen1x2 ni imiyoboro itandukanye.Kugeza ubu, birazwi ko imbaho nyinshi zo mu rwego rwo hejuru zifite USB3.2Gen2x2, zimwe ni interineti ya TYPE C, izindi ni USB, kandi ubu TYPE C igaragara cyane.Itandukaniro riri hagati ya Gen1 na Gen2, Itang
Kugereranya USB3.2 na USB4 iheruka
1. Umuyoboro mugari: USB 3.2 igera kuri 20Gbps, naho USB4 ni 40Gbps.
2. Kohereza protocole: USB 3.2 yohereza cyane cyane amakuru binyuze muri USB protocole, cyangwa igashyiraho USB na DP binyuze muri DP Alt Mode (ubundi buryo).USB4 ikubiyemo protocole ya USB 3.2, DP na PCIe mumapaki binyuze mumikoreshereze ya tunnel ikohereza icyarimwe.
3. Ikwirakwizwa rya DP: irashobora gushyigikira DP 1.4.USB 3.2 igena ibisohoka binyuze muri DP Alt Mode;Usibye kugena ibyasohotse binyuze muri DP Alt Mode (ubundi buryo), USB4 irashobora kandi gukuramo amakuru ya DP binyuze muri USB4 tunnel protocole packets.
4, PCIe yoherejwe: USB 3.2 ntabwo ishigikira PCIe, USB4 ishyigikira.PCIe amakuru yakuwe hifashishijwe USB4 tunnel ya protocole yamapaki.
5, kwanduza TBT3: USB 3.2 ntabwo ishyigikiwe, USB4 irashyigikiwe, ni ukuvuga binyuze muri USB4 tunnel protocole yamashanyarazi kugirango ikuremo PCIe na DP.
6, Abashitsi kuri Host: itumanaho hagati ya host na host, USB3.2 ntabwo ishigikira, inkunga ya USB4.Ahanini USB4 ishyigikira protocole ya PCIe kugirango ishyigikire iki gikorwa.
Icyitonderwa: Umuyoboro urashobora kugaragara nkubuhanga bwo guhuza amakuru kuva protocole zitandukanye, ukoresheje imitwe kugirango utandukanye ubwoko.
Muri USB 3.2, ihererekanyabubasha rya videwo ya DisplayPort na USB 3.2 ryandikirwa kuri adaptate zitandukanye, mugihe muri USB4, Video ya DisplayPort, USB 3.2 hamwe na PCIe amakuru ashobora koherezwa kumuyoboro umwe, akaba ariryo tandukaniro rinini hagati yibi byombi.Urashobora kubona igishushanyo gikurikira kugirango urusheho gusobanukirwa.
Imiyoboro ya USB4 irashobora gutekerezwa nkinzira zishobora kunyura muburyo butandukanye bwimodoka, kandi amakuru ya USB, amakuru ya DP, hamwe namakuru ya PCIe arashobora gutekerezwa nkibinyabiziga bitandukanye.Hano hari imodoka zitandukanye mumurongo umwe utwara muburyo bukurikiranye, kandi USB4 yohereza ubwoko butandukanye bwamakuru kumuyoboro umwe.USB3.2, DP na PCIe amakuru yabanje gukusanyirizwa hamwe, yoherezwa kumuyoboro umwe, woherezwa mubikoresho bya mugenzi we, hanyuma bigatandukana muburyo butandukanye bwamakuru.
USB3.2 insinga yububiko
Mubisobanuro bya USB 3.2, imiterere yihuta ya USB Type-C ikoreshwa neza.USB Type-C ifite imiyoboro 2 yihuta yo kohereza amakuru, yitwa (TX1 + / TX1-, RX1 + / RX1-) na (TX2 + / TX2-, RX2 + / RX2-), mbere USB 3.1 yakoresheje imwe mu miyoboro yohereza amakuru , n'undi muyoboro wabayeho muburyo bwo gusubira inyuma.Muri USB 3.2, imiyoboro yombi irashobora gushoboka mugihe gikwiye, kandi umuvuduko ntarengwa wa 10Gbps kuri buri muyoboro urashobora kugerwaho, kuburyo amafaranga ari 20Gbps, ukoresheje kodegisi ya 128b / 132b, umuvuduko wukuri ushobora kugera kuri 2500MB / s, ni kabiri mu buryo butaziguye USB USB uyumunsi 3.1.Birakwiye ko tuvuga ko umuyoboro uhindura USB 3.2 utagira ikizinga rwose kandi ntusaba ibikorwa bidasanzwe kubakoresha.
USB3.1 insinga zifatwa kimwe na USB 3.0.Kugenzura Impedance: Impedance yumurongo utandukanye wa SDP ikingiwe igenzurwa kuri 90Ω ± 5Ω, naho umurongo wa coaxial ukarangira ugenzurwa kuri 45Ω ± 3Ω.Gutinda imbere muri couple itandukanye ni munsi ya 15ps / m, naho ibindi bisigaye byo gutakaza kwinjiza nibindi bipimo bihuye na USB3.0, kandi imiterere ya kabili yatoranijwe ukurikije imikorere nibyiciro bya ssenariyo n'ibisabwa: VBUS: Insinga 4 kugirango tumenye amashanyarazi ya voltage nubu;Vconn: bitandukanye na VBUS, itanga gusa voltage ya 3.0 ~ 5.5V;Gusa koresha chip ya kabel;D + / D-: USB 2.0 ikimenyetso, kugirango dushyigikire imbere no gucomeka inyuma, hariho ibice bibiri byibimenyetso kuruhande rwa sock;TX +/- na RX +/-: ibice 2 by'ibimenyetso, ibice 4 by'ibimenyetso, bishyigikira imbere na revers interpolation;CC: Hindura ibimenyetso, wemeze kandi ucunge inkomoko-itumanaho;SUB: Ikimenyetso cyagutse cyibimenyetso, kiboneka kumajwi.
Niba impedance yumurongo utandukanijwe ikingiwe igenzurwa kuri 90Ω ± 5Ω, umurongo wa coaxial urakoreshwa, ibimenyetso byubutaka bigaruka binyuze muri GND ikingiwe, kandi umurongo umwe wa coaxial ugenzurwa kuri 45Ω ± 3Ω, ariko munsi yuburebure butandukanye. , Porogaramu Ikoreshwa rya Interineti igena ihitamo ryitumanaho no guhitamo imiterere ya kabili.
USB 3.2 Itangiriro 1x1 - Umuvuduko mwinshi, 5 Gbit / s (0,625 GB / s) amakuru yerekana ibimenyetso hejuru yumurongo 1 ukoresheje kodegisi ya 8b / 10b, kimwe na USB 3.1 Gen 1 na USB 3.0.
USB 3.2 Itang 1x2 - SuperSpeed +, igipimo gishya cya 10 Gbit / s (1.25 GB / s) igipimo cyamakuru hejuru yumuhanda 2 ukoresheje kodegisi ya 8b / 10b.
USB 3.2 Itangiriro 2x1 - Umuvuduko wihuse +, 10 Gbit / s (1.25 GB / s) igipimo cyamakuru hejuru y'umuhanda 1 ukoresheje kodegisi ya 128b / 132b, kimwe na USB 3.1 Itangiriro 2.
USB 3
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Igihe cyoherejwe: Nyakanga-18-2023