I-USB-UKUBA Indibano yamva nje yokuthiywa kwe-USB ithi i-USB3.0 yoqobo kunye ne-USB3.1 ayisayi kuphinda isetyenziswe, yonke imigangatho ye-USB3.0 ibizwa ngokuba yi-USB3.2, imigangatho ye-USB3.2 iya kujongano oludala lwe-USB 3.0/3.1 zonke zibandakanyiwe. ukuya kumgangatho we-USB3.2, i-interface ye-USB3.1 ibizwa ngokuba yi-USB3.2 Gen 2, kwaye i-interface ye-USB3.0 yoqobo ibizwa ngokuba yi-USB3.2 Gen 1, xa ucinga ngokuhambelana, i-USB3.2 Gen 1 isantya sothumelo yi-5Gbps, i-USB3.2 Isantya sokuhambisa i-Gen2 yi-10Gbps, i-USB3.2 Gen2x2 isantya sothumelo yi-20Gbps, ngoko ke i-USB3.1 Gen1 kunye ne-USB3.0 iinkcazo zenkcazo entsha inokuqondwa njengento enye, kodwa igama lihlukile.I-Gen1 kunye ne-Gen2 ziqondwa ukuba zithetha ukuba indlela ye-encoding ihluke, ukusetyenziswa kwe-bandwidth kuyahluka, kwaye i-Gen1 kunye ne-Gen1x2 ziyi-intuitively ezahlukeneyo iziteshi.Okwangoku, kuyaziwa ukuba iibhodi zoomama ezininzi eziphezulu zine-USB3.2Gen2x2 ujongano, ezinye ziyi-TYPE C interface, ezinye ziyi-interface ye-USB, kwaye i-interface ye-TYPE C yangoku ininzi.Umahluko phakathi kweGen1 kunye neGen2, Gen3
Ukuthelekiswa kwe-USB3.2 kunye ne-USB4 yamva nje
1. I-bandwidth yokudlulisa: I-USB 3.2 ifikelela kwi-20Gbps, ngelixa i-USB4 i-40Gbps.
2. Iprotocol yokudlulisa: I-USB 3.2 idlulisela ngokukodwa idatha nge-protocol ye-USB, okanye iqwalasele i-USB kunye ne-DP nge-DP Alt Mode (enye indlela).I-USB4 ifaka i-USB 3.2, i-DP kunye neeprothokholi ze-PCIe kwiipakethi ngokusebenzisa itekhnoloji ye-tunnel kwaye iyithumele ngaxeshanye.
3. Ukuhanjiswa kwe-DP: kunokuxhasa i-DP 1.4.I-USB 3.2 iqwalasela imveliso nge-DP Alt Mode;Ukongeza ekuqwalaseleni imveliso nge-DP Alt Mode (enye indlela), i-USB4 inokukhupha idatha ye-DP ngokusebenzisa iipakethi zeprotocol ze-USB4.
4, PCIe transmission: USB 3.2 ayixhasi PCIe, USB4 ixhasa.Idatha yePCIe itsalwa nge-USB4 tunneling protocol ipakethi.
I-5, ukuhanjiswa kwe-TBT3: I-USB 3.2 ayixhaswanga, i-USB4 ixhaswa, oko kukuthi, ngeepakethi zeprotocol ze-USB4 ukukhupha idatha ye-PCIe kunye ne-DP.
I-6, i-Host to Host: unxibelelwano phakathi komninimzi kunye nomninimzi, i-USB3.2 ayixhasi, inkxaso ye-USB4.Ikakhulu i-USB4 ixhasa iprotocol yePCIe ukuxhasa lo msebenzi.
Qaphela: Ukujongwa kwetonela kunokubonwa njengendlela yokudibanisa idatha esuka kwiiprothokholi ezahlukeneyo, kusetyenziswa iiheader ukwahlula iindidi.
Kwi-USB 3.2, ukuhanjiswa kwevidiyo ye-DisplayPort kunye nedatha ye-USB 3.2 ihanjiswa kwii-adapters zeshaneli ezahlukeneyo, ngelixa i-USB4, i-DisplayPort ividiyo, idatha ye-USB 3.2 kunye nedatha ye-PCIe inokudluliselwa kwitshaneli enye, eyona nto ihluke kakhulu phakathi kwezi zibini.Ungawubona lo mzobo ungezantsi ukwenza nzulu ukuqonda kwakho.
Iziteshi ze-USB4 zinokucingelwa njengemizila enokuthi idlule iintlobo ezahlukeneyo zezithuthi, kunye nedatha ye-USB, idatha ye-DP, kunye nedatha ye-PCIe inokucingelwa njengezithuthi ezahlukeneyo.Kukho iimoto ezahlukeneyo kwindlela enye eqhuba ngocwangco, kwaye i-USB4 ithumela iindidi ezahlukeneyo zedatha kwitshaneli enye.Idatha ye-USB3.2, DP kunye ne-PCIe iqala ngokudityaniswa kunye, ithunyelwe ngetshaneli enye, ithunyelwe kwizixhobo zomnye, ize yahlulwe kwiintlobo ezi-3 zedatha.
Inkcazo yesakhiwo sentambo ye-USB3.2
Kwinkcazo ye-USB 3.2, indalo yesantya esiphezulu se-USB Type-C isetyenziswa ngokupheleleyo.I-USB Type-C ineendlela ezi-2 zokudlulisa idatha ngesantya esiphezulu, ezibizwa ngokuba (TX1+/TX1-, RX1+/RX1-) kunye (TX2+/TX2-, RX2+/RX2-), ngaphambili i-USB 3.1 yayisebenzisa enye yeendlela zokuhambisa idatha. , kunye nelinye ijelo belikhona ngendlela yogcino.Kwi-USB 3.2, zombini iziteshi ziyakwazi ukusebenza xa zifanelekile, kwaye isantya esiphezulu sokudlulisa i-10Gbps ngeshaneli nganye sinokufezekiswa, ukuze isamba sibe yi-20Gbps, usebenzisa i-encoding ye-128b / 132b, isantya sangempela sedatha sinokufikelela malunga ne-2500MB / s, leyo iphindwe kabini ngokuthe ngqo kwi-USB 3.1 yanamhlanje.Kuyafaneleka ukukhankanya ukuba ukutshintshwa kwetshaneli ye-USB 3.2 ayinamthungo ngokupheleleyo kwaye ayifuni ukusebenza okukhethekileyo ngumsebenzisi.
Iintambo ze-USB3.1 ziphathwa ngendlela efanayo ne-USB 3.0.Ukulawulwa kwe-Impedance: I-impedance ye-SDP ekhuselekileyo yomgca ohlukeneyo ilawulwa kwi-90Ω ± 5Ω, kwaye umgca we-coaxial ogqityiweyo ulawulwa kwi-45Ω ± 3Ω.Ukulibaziseka ngaphakathi kweebini ezihlukeneyo kungaphantsi kwe-15ps / m, kwaye yonke ilahleko yokufaka kunye nezinye izibonakaliso zihambelana ne-USB3.0, kwaye isakhiwo sekhebula sikhethwe ngokwemisebenzi kunye neendidi zeemeko zesicelo kunye neemfuno: VBUS: Iingcingo ezi-4 zokuqinisekisa i-voltage yangoku kunye nekhoyo;I-Vconn: ngokungafani ne-VBUS, inika kuphela uluhlu lwe-voltage ye-3.0 ~ 5.5V;Kuphela amandla chip yentambo;I-D +/D-: Isignali ye-USB 2.0, ukwenzela ukuxhasa iplagi yangaphambili kunye ne-reverse, kukho izibini ezimbini zeempawu kwicala le-socket;I-TX +/- kunye ne-RX +/-: iiseti ze-2 zeempawu, izibini ze-4 zeempawu, ukuxhasa phambili kunye nokuguqulwa kwe-reverse;I-CC: Qwalasela imiqondiso, qinisekisa kwaye ulawule imidibaniso yomthombo-umzila;SUB: Umqondiso womsebenzi owandisiweyo, uyafumaneka kwi-audio.
Ukuba i-impedance yomgca wokwahlukana okhuselweyo ilawulwa kwi-90Ω ± 5Ω, umgca we-coaxial usetyenziswa, ukubuyiswa komhlaba wesignali nge-GND ekhuselekileyo, kwaye umgca we-coaxial ogqityiweyo ulawulwa kwi-45Ω ± 3Ω, kodwa phantsi kobude obuhlukeneyo bekhebula. , iimeko zesicelo ze-interface zinquma ukukhethwa kwabafowunelwa kunye nokukhethwa kwesakhiwo sekhebula.
I-USB 3.2 Gen 1x1 - I-SuperSpeed, i-5 Gbit / s (0.625 GB / s) izinga lokubonisa idatha kwi-lane ye-1 usebenzisa i-encoding ye-8b / 10b, efanayo ne-USB 3.1 Gen 1 kunye ne-USB 3.0.
I-USB 3.2 Gen 1x2 - I-SuperSpeed +, i-10 Gbit / s entsha (1.25 GB / s) izinga ledatha kwiindlela ze-2 usebenzisa i-encoding ye-8b / 10b.
I-USB 3.2 Gen 2x1 - SuperSpeed+, 10 Gbit/s (1.25 GB/s) ireyithi yedatha kwi-lane eyi-1 usebenzisa i-128b/132b encoding, efanayo ne-USB 3.1 Gen 2.
I-USB 3.2 Gen 2x2 - SuperSpeed +, i-20 Gbit / s entsha (2.5 GB / s) ireyithi yedatha kwiindlela ze-2 usebenzisa i-128b / 132b encoding.
Ixesha lokuposa: Jul-17-2023