I-USB-UMA Ingqungquthela yakamuva yokuqamba i-USB ithi i-USB3.0 yoqobo ne-USB3.1 ngeke isasetshenziswa, wonke amazinga e-USB3.0 abizwa nge-USB3.2, amazinga e-USB3.2 azokwenza isixhumi esibonakalayo esidala se-USB 3.0/3.1 sihlanganiswe konke. ezingeni le-USB3.2, isixhumi esibonakalayo se-USB3.1 sibizwa nge-USB3.2 Gen 2, kanti isixhumi esibonakalayo sokuqala se-USB3.0 sibizwa nge-USB3.2 Gen 1, uma kucatshangelwa ukuhambisana, isivinini se-USB3.2 Gen 1 singu-5Gbps, i-USB3.2 Isivinini sokudlulisa se-Gen2 singu-10Gbps, isivinini sokudlulisa se-USB3.2 Gen2x2 singu-20Gbps, ngakho-ke izincazelo ze-USB3.1 Gen1 ne-USB3.0 ezintsha zingaqondwa njengento eyodwa, kodwa igama lihlukile.I-Gen1 ne-Gen2 kuqondwa njengokusho ukuthi indlela yombhalo wekhodi ihlukile, ukusetshenziswa komkhawulokudonsa kuhlukile, futhi i-Gen1 ne-Gen1x2 ziyiziteshi ezihlukile ngokunembile.Njengamanje, kuyaziwa ukuthi ama-motherboards amaningi asezingeni eliphezulu ane-interface ye-USB3.2Gen2x2, amanye ayisixhumi esibonakalayo se-TYPE C, amanye ayisixhumi esibonakalayo se-USB, futhi isixhumi esibonakalayo se-TYPE C samanje kakhulu .Umehluko phakathi kweGen1 neGen2, Gen3
Ukuqhathaniswa kwe-USB3.2 kanye ne-USB4 yakamuva
1. Umkhawulokudonsa wokudlulisa: I-USB 3.2 ifika ku-20Gbps, kuyilapho i-USB4 ingu-40Gbps.
2. Iphrothokholi yokudlulisa: I-USB 3.2 idlulisela kakhulu idatha ngephrothokholi ye-USB, noma ilungiselela i-USB ne-DP nge-DP Alt Mode (enye imodi).I-USB4 ihlanganisa amaphrothokholi e-USB 3.2, DP kanye ne-PCIe ibe amaphakethe ngobuchwepheshe bomhubhe futhi iwathumele ngesikhathi esifanayo.
3. Ukudluliselwa kwe-DP: kungasekela i-DP 1.4.I-USB 3.2 ilungiselela okukhiphayo nge-DP Alt Mode;Ngaphezu kokumisa okukhiphayo nge-DP Alt Mode (enye imodi), i-USB4 ingaphinda ikhiphe idatha ye-DP ngamaphakethe ephrothokholi e-USB4.
4, ukudluliswa kwe-PCIe: I-USB 3.2 ayisekeli i-PCIe, i-USB4 isekela.Idatha ye-PCIe ikhishwa ngamaphakethe ephrothokholi e-USB4.
I-5, ukudluliswa kwe-TBT3: I-USB 3.2 ayisekelwe, i-USB4 iyasekelwa, okungukuthi, ngamaphakethe ephrothokholi yomhubhe we-USB4 ukukhipha idatha ye-PCIe ne-DP.
6, Isikhungo Sokusingatha: ukuxhumana phakathi komsingathi nomsingathi, i-USB3.2 ayisekeli, ukusekelwa kwe-USB4.Ikakhulu i-USB4 isekela iphrothokholi ye-PCIe ukusekela lo msebenzi.
Qaphela: Ukushuna kungabonwa njengendlela yokuhlanganisa idatha evela kumaphrothokholi ahlukene, kusetshenziswa izihloko ukuhlukanisa izinhlobo.
Ku-USB 3.2, ukudluliswa kwevidiyo ye-DisplayPort kanye nedatha ye-USB 3.2 kudluliselwa kuma-adaptha eziteshi ahlukene, kuyilapho ku-USB4, ividiyo ye-DisplayPort, idatha ye-USB 3.2 kanye nedatha ye-PCIe ingadluliselwa esiteshini esifanayo, okuwumehluko omkhulu phakathi kwakho kokubili.Ungabona umfanekiso ongezansi ukuze ujulise ukuqonda kwakho.
Iziteshi ze-USB4 zingacatshangwa njengemizila engadlula izinhlobo ezahlukene zezimoto, futhi idatha ye-USB, idatha ye-DP, kanye nedatha ye-PCIe ingacatshangwa njengezimoto ezahlukene.Kunezimoto ezahlukene emzileni ofanayo ezishayela ngendlela ehlelekile, futhi i-USB4 idlulisa izinhlobo ezahlukene zedatha esiteshini esisodwa.Idatha ye-USB3.2, DP kanye ne-PCIe iqala ihlanganiswe ndawonye, ithunyelwe ngesiteshi esifanayo, ithunyelwe emishinini yomunye nomunye, bese ihlukaniswa yaba izinhlobo ezi-3 ezihlukene zedatha.
Incazelo yesakhiwo sekhebula le-USB3.2
Ekucacisweni kwe-USB 3.2, imvelo yesivinini esiphezulu se-USB Type-C isetshenziswa ngokugcwele.I-USB Type-C ineziteshi ezi-2 zokudluliswa kwedatha ezinesivinini esiphezulu, eziqanjwe (TX1+/TX1-, RX1+/RX1-) kanye (TX2+/TX2-, RX2+/RX2-), ngaphambilini i-USB 3.1 yayisebenzisa esinye seziteshi kuphela ukudlulisa idatha. , kanye nesinye isiteshi besikhona ngendlela eyisipele.Ku-USB 3.2, zombili iziteshi zingavulwa uma kufaneleka, futhi isivinini esiphezulu sokudlulisela esingu-10Gbps esiteshini ngasinye singafinyelelwa, ukuze isamba sibe ngu-20Gbps, kusetshenziswa umbhalo wekhodi we-128b/132b, isivinini sedatha sangempela singafinyelela cishe ku-2500MB/s, okuyinto iphindwe kabili ngokuqondile kune-USB 3.1 yanamuhla.Kuhle ukusho ukuthi ukushintshwa kwesiteshi kwe-USB 3.2 akunamthungo ngokuphelele futhi akudingi ukusebenza okukhethekile komsebenzisi.
Izintambo ze-USB3.1 ziphathwa ngendlela efanayo ne-USB 3.0.Ukulawulwa kwe-impedance: Ukuvinjelwa komugqa wokuhlukanisa ovikelekile we-SDP kulawulwa ku-90Ω ± 5Ω, futhi umugqa we-coaxial onesiphelo esisodwa ulawulwa ku-45Ω ± 3Ω.Ukubambezeleka ngaphakathi kwepheya ehlukile kungaphansi kuka-15ps/m, futhi okunye ukulahlekelwa kokufaka nezinye izinkomba zihambisana ne-USB3.0, futhi isakhiwo sekhebula sikhethwa ngokuya ngemisebenzi nezigaba zezimo zohlelo lokusebenza nezimfuneko: VBUS: Izintambo ezi-4 zokuqinisekisa amandla kagesi kanye namanje;I-Vconn: ngokungafani ne-VBUS, inikeza kuphela ububanzi be-voltage engu-3.0 ~ 5.5V;Nika amandla i-chip yekhebula kuphela;I-D+/D-: Isignali ye-USB 2.0, ukuze kusekelwe ukuxhuma phambili nokuhlehla, kukhona amapheya amabili amasignali ohlangothini lwesokhethi;I-TX+/- ne-RX+/-: amasethi ama-2 wamasignali, amapheya angu-4 wamasignali, ukusekela phambili nokuhlehlisa ukuhumusha;I-CC: Lungiselela amasignali, uqinisekise futhi ulawule ukuxhumana komthombo-umthombo;I-SUB: Isignali yokusebenza enwetshiwe, etholakalayo ngomsindo.
Uma ukuvinjelwa komugqa wokuhlukanisa ovikelekile kulawulwa ku-90Ω ± 5Ω, kusetshenziswa umugqa we-coaxial, ukubuya komhlaba wesignali nge-GND evikelekile, futhi umugqa we-coaxial onesiphelo esisodwa ulawulwa ku-45Ω±3Ω, kodwa ngaphansi kobude obuhlukile bekhebula. , izimo zohlelo lokusebenza zesixhumi esibonakalayo zinquma ukukhethwa koxhumana nabo kanye nokukhethwa kwesakhiwo sekhebula.
I-USB 3.2 Gen 1x1 - I-SuperSpeed, 5 Gbit/s (0.625 GB/s) izinga lokusayina idatha emzileni ongu-1 kusetshenziswa ukubhala ngekhodi okungu-8b/10b, okufanayo ne-USB 3.1 Gen 1 ne-USB 3.0.
I-USB 3.2 Gen 1x2 - SuperSpeed+, izinga ledatha entsha engu-10 Gbit/s (1.25 GB/s) emigwaqweni emi-2 kusetshenziswa umbhalo wekhodi ongu-8b/10b.
I-USB 3.2 Gen 2x1 - SuperSpeed+, 10 Gbit/s (1.25 GB/s) isilinganiso sedatha emzileni ongu-1 kusetshenziswa umbhalo wekhodi ongu-128b/132b, ngokufanayo ne-USB 3.1 Gen 2.
I-USB 3.2 Gen 2x2 - SuperSpeed+, izinga ledatha entsha engu-20 Gbit/s (2.5 GB/s) emigwaqweni emi-2 kusetshenziswa umbhalo wekhodi ongu-128b/132b.
Isikhathi sokuthumela: Jul-17-2023