Izisekelo ze-USB 3.2 (Ingxenye 1)

Izisekelo ze-USB 3.2 (Ingxenye 1)

Ngokusho kohlelo lwakamuva lokuqamba i-USB oluvela ku-USB-IF, i-USB 3.0 yokuqala kanye ne-USB 3.1 ngeke zisasetshenziswa. Zonke izindinganiso ze-USB 3.0 zizobizwa ngokuthi i-USB 3.2. Izinga le-USB 3.2 lihlanganisa zonke izixhumi ze-USB 3.0/3.1 ezindala. Isixhumi se-USB 3.1 manje sibizwa ngokuthi i-USB 3.2 Gen 2, kanti isixhumi se-USB 3.0 sokuqala sibizwa ngokuthi i-USB 3.2 Gen 1. Uma kucatshangelwa ukuhambisana, ijubane lokudlulisa le-USB 3.2 Gen 1 lingu-5Gbps, i-USB 3.2 Gen 2 ingu-10Gbps, kanti i-USB 3.2 Gen 2×2 ingu-20Gbps. Ngakho-ke, incazelo entsha ye-USB 3.1 Gen 1 kanye ne-USB 3.0 ingaqondwa njengento efanayo, ngamagama ahlukene. I-Gen 1 kanye ne-Gen 2 zibhekisela ezindleleni ezahlukene zokufaka ikhodi kanye namazinga okusetshenziswa kwe-bandwidth, kuyilapho i-Gen 1 kanye ne-Gen 1×2 zihlukile ngokwe-intuitively ngokweziteshi. Njengamanje, amabhodi amaningi e-motherboard aphezulu anezixhumi ze-USB 3.2 Gen 2×2, ezinye zazo ziyizixhumi ze-Type-C kanti ezinye ziyizixhumi ze-USB. Njengamanje, izixhumi ze-Type-C zivame kakhulu. Umehluko phakathi kwe-Gen1, i-Gen2 ne-Gen3

1. Umkhawulokudonsa wokudlulisa: Umkhawulokudonsa ophezulu we-USB 3.2 ungama-20 Gbps, kanti owe-USB 4 ungama-40 Gbps.

2. Iphrothokholi yokudlulisa: I-USB 3.2 idlulisela idatha kakhulu ngephrothokholi ye-USB, noma ilungiselela i-USB ne-DP nge-DP Alt Mode (imodi ehlukile). Ngenkathi i-USB 4 ihlanganisa amaphrothokholi e-USB 3.2, e-DP kanye ne-PCIe kumaphakethe edatha kusetshenziswa ubuchwepheshe bomhubhe futhi iwathumele ngesikhathi esisodwa.
3. Ukudluliswa kwe-DP: Kokubili kungasekela i-DP 1.4. I-USB 3.2 ilungiselela okuphumayo nge-DP Alt Mode (imodi ehlukile); kuyilapho i-USB 4 ingagcini nje ngokuhlela okuphumayo nge-DP Alt Mode (imodi ehlukile), kodwa futhi ingakhipha idatha ye-DP ngokukhipha amaphakethe edatha ephrothokholi yomhubhe we-USB4.
4. Ukudluliselwa kwe-PCIe: I-USB 3.2 ayisekeli i-PCIe, kuyilapho i-USB 4 isekela. Idatha ye-PCIe ikhishwa ngamaphakethe edatha yephrothokholi ye-USB4.
5. Ukudluliswa kwe-TBT3: I-USB 3.2 ayisekeli, kodwa i-USB 4 iyasekela. Kungamaphakethe edatha ephrothokholi ye-USB4 lapho idatha ye-PCIe ne-DP ikhishwa khona.
6. I-Host kuya ku-Host: Ukuxhumana phakathi kwama-host. I-USB 3.2 ayisekeli, kodwa i-USB 4 iyasekela. Isizathu esiyinhloko salokhu ukuthi i-USB 4 isekela iphrothokholi ye-PCIe ukusekela lo msebenzi.

Qaphela: Ubuchwepheshe bokuhudula bungabhekwa njengendlela yokuhlanganisa idatha evela kumaphrothokholi ahlukene ndawonye, ​​uhlobo luhlukaniswa ngesihloko sephakethe ledatha.
Ku-USB 3.2, ukudluliswa kwevidiyo ye-DisplayPort kanye 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 kungadluliswa ngesiteshi esifanayo. Lona umehluko omkhulu phakathi kwalokhu okubili. Ungabheka umdwebo olandelayo ukuze uthole ukuqonda okujulile.

Isiteshi se-USB4 singacatshangwa njengomzila ovumela izinhlobo ezahlukene zezimoto ukuthi zidlule. Idatha ye-USB, idatha ye-DP, kanye nedatha ye-PCIe kungabhekwa njengezimoto ezahlukene. Emzileni ofanayo, izimoto ezahlukene zimi emgqeni futhi zihamba ngendlela ehlelekile. Isiteshi esifanayo se-USB4 sidlulisela izinhlobo ezahlukene zedatha ngendlela efanayo. Idatha ye-USB3.2, DP, kanye ne-PCIe kuqala ihlangana ndawonye bese ithunyelwa ngesiteshi esifanayo kwenye idivayisi, bese izinhlobo ezintathu ezahlukene zedatha zihlukaniswa.