I-USB 3.2 Basics (Ingxenye 1)

I-USB 3.2 Basics (Ingxenye 1)

Ngokusho kwengqungquthela yakamuva yokuqamba amagama ye-USB evela ku-USB-IF, i-USB 3.0 yoqobo ne-USB 3.1 ngeke isasetshenziswa. Wonke amazinga e-USB 3.0 azobizwa ngokuthi i-USB 3.2. Izinga le-USB 3.2 lihlanganisa zonke izixhumi ezibonakalayo ze-USB 3.0/3.1 endala. Isixhumi esibonakalayo se-USB 3.1 manje sesibizwa nge-USB 3.2 Gen 2, kuyilapho isixhumi esibonakalayo sokuqala se-USB 3.0 sibizwa nge-USB 3.2 Gen 1. Uma ucabangela ukuhambisana, isivinini sokudlulisa se-USB 3.2 Gen 1 singu-5Gbps, i-USB 3.2 Gen 2 ngu-10Gbps, ne-USB 3.2 Gen 2×2 ngu-20Gb. Ngakho-ke, incazelo entsha ye-USB 3.1 Gen 1 ne-USB 3.0 ingaqondwa njengento efanayo, ngamagama ahlukene nje. I-Gen 1 ne-Gen 2 ibhekisela ezindleleni ezihlukene zokufaka ikhodi namazinga okusetshenziswa komkhawulokudonsa, kuyilapho i-Gen 1 ne-Gen 1×2 zihluke ngokunembile ngokweziteshi. Njengamanje, ama-motherboards amaningi asezingeni eliphezulu anezindawo zokusebenzelana ze-USB 3.2 Gen 2×2, ezinye zazo ziyi-Type-C interface kanti ezinye ziyi-USB. Okwamanje, ukuxhumana kohlobo lwe-C kuvame kakhulu.Umehluko phakathi kwe-Gen1, Gen2 kanye ne-Gen3

1. Umkhawulokudonsa wokudlulisa: Umkhawulokudonsa omkhulu we-USB 3.2 ngu-20 Gbps, kanti owe-USB 4 ungu-40 Gbps.

2. Iphrothokholi yokudlulisa: I-USB 3.2 idlulisela ngokuyinhloko idatha ngephrothokholi ye-USB, noma ilungiselela i-USB ne-DP nge-DP Alt Mode (enye imodi). Ngenkathi i-USB 4 ihlanganisa amaphrothokholi e-USB 3.2, DP kanye ne-PCIe kumaphakethe edatha esebenzisa ubuchwepheshe bomhubhe futhi iwathumele kanyekanye.
3. Ukudluliselwa kwe-DP: Kokubili kungasekela i-DP 1.4. I-USB 3.2 ilungiselela okukhiphayo nge-DP Alt Mode (enye imodi); kuyilapho i-USB 4 ingalungiseleli okukhiphayo kuphela ngeModi ye-DP Alt (enye indlela), kodwa futhi ingakhipha idatha ye-DP ngokukhipha amaphakethe wedatha wephrothokholi yomhubhe we-USB4.
4. Ukudluliswa kwe-PCIe: I-USB 3.2 ayisekeli i-PCIe, kuyilapho i-USB 4 isekela. Idatha ye-PCIe ikhishwa ngamaphakethe edatha yephrothokholi yomhubhe we-USB4.
5. Ukudluliswa kwe-TBT3: I-USB 3.2 ayisekeli, kodwa i-USB 4 iyakusekela. Kungephakethe ledatha yephrothokholi yomhubhe we-USB4 lapho kukhishwa idatha ye-PCIe ne-DP.
6. Ukusingatha Kumphathi: Ukuxhumana phakathi kwababungazi. I-USB 3.2 ayisekeli, kodwa i-USB 4 iyakusekela. Isizathu esikhulu salokhu ukuthi i-USB 4 isekela umthetho olandelwayo we-PCIe ukusekela lo msebenzi.

Qaphela: Ubuchwepheshe bokushunela bungathathwa njengendlela yokuhlanganisa idatha evela kumaphrothokholi ahlukene ndawonye, ​​ngohlobo oluhlukaniswa ngesihloko sephakethe ledatha.
Ku-USB 3.2, ukudluliswa kwevidiyo ye-DisplayPort nedatha ye-USB 3.2 kwenzeka ngama-adaptha eziteshi ahlukene, kuyilapho ku-USB 4, ividiyo ye-DisplayPort, idatha ye-USB 3.2, kanye nedatha ye-PCIe ingadluliselwa ngesiteshi esifanayo. Lona umehluko omkhulu phakathi kokubili. Ungabheka umdwebo olandelayo ukuze uthole ukuqonda okujulile.

Isiteshi se-USB4 singacatshangwa njengomzila ovumela izinhlobo ezahlukene zezimoto ukuthi zidlule. Idatha ye-USB, idatha ye-DP, nedatha ye-PCIe ingathathwa njengezimoto ezahlukene. Emzileni ofanayo, izimoto ezahlukene zikleliswe futhi zihamba ngendlela ehlelekile. Isiteshi esifanayo se-USB4 sidlulisa izinhlobo ezahlukene zedatha ngendlela efanayo. Idatha ye-USB3.2, DP, ne-PCIe iqala ukuhlangana ndawonye futhi ithunyelwe ngesiteshi esifanayo kwenye idivayisi, bese kuhlukaniswa izinhlobo ezintathu zedatha.