USB-HAEBA Kopano ea morao-rao ea ho reha mabitso ka USB e bolela hore USB3.0 le USB3.1 ea mantlha ha e sa tla hlola e sebelisoa, litekanyetso tsohle tsa USB3.0 li bitsoa USB3.2, litekanyetso tsa USB3.2 li tla kenyeletsoa sebopeho sa khale sa USB 3.0/3.1 kaofela. ho standard USB3.2, USB3.1 interface e bitsoa USB3.2 Gen 2, 'me sebopeho sa mantlha sa USB3.0 se bitsoa USB3.2 Gen 1, ha ho nahanoa ka tšebelisano, USB3.2 Gen 1 lebelo la phetiso ke 5Gbps, USB3.2 Gen2 lebelo la phetisetso ke 10Gbps, USB3.2 Gen2x2 lebelo la phetisetso ke 20Gbps, kahoo USB3.1 Gen1 le USB3.0 litlhaloso tse ncha tsa litlhaloso li ka utloisisoa e le ntho e le 'ngoe, empa lebitso e fapane. Gen1 le Gen2 li utloisisoa li bolela hore mokhoa oa khouto o fapane, tšebeliso ea bandwidth e fapane, 'me Gen1 le Gen1x2 ke liteishene tse fapaneng ka mokhoa o hlakileng. Hajoale, hoa tsebahala hore liboto tsa bo-mme tsa maemo a holimo li na le sebopeho sa USB3.2Gen2x2, tse ling ke sebopeho sa TYPE C, tse ling ke tsa USB, 'me sebopeho sa hajoale sa TYPE C hangata ke . Phapano lipakeng tsa Gen1 le Gen2, Gen3
Papiso ea USB3.2 le USB4 ea morao-rao
1. Bophahamo ba phetiso: USB 3.2 e fihla ho 20Gbps, ha USB4 e le 40Gbps.
2. Transfer protocol: USB 3.2 haholo-holo e fetisetsa data ka protocol ea USB, kapa e lokisa USB le DP ka DP Alt Mode (mokhoa o mong). USB4 e kenyelletsa liprothokholo tsa USB 3.2, DP le PCIe ka har'a lipakete ka theknoloji ea tunneling ebe e li romella ka nako e le 'ngoe.
3. Phetiso ea DP: e ka tšehetsa DP 1.4. USB 3.2 e lokisa tlhahiso ka DP Alt Mode; Ntle le ho hlophisa tlhahiso ka DP Alt Mode (mokhoa o mong), USB4 e ka boela ea ntša data ea DP ka lipakete tsa protocol tsa USB4.
4, phetisetso ea PCIe: USB 3.2 ha e tšehetse PCIe, USB4 e tšehetsa. Lintlha tsa PCIe li ntšoa ka lipakete tsa protocol tsa USB4.
5, phetisetso ea TBT3: USB 3.2 ha e tšehetsoe, USB4 ea tšehetsoa, ke hore, ka lipakete tsa protocol tsa USB4 ho ntša data ea PCIe le DP.
6, Host to Host: puisano pakeng tsa moamoheli le moamoheli, USB3.2 ha e tšehetse, tšehetso ea USB4. Haholo-holo USB4 e tšehetsa protocol ea PCIe ho tšehetsa mosebetsi ona.
Tlhokomeliso: Tunneling e ka bonoa e le mokhoa oa ho kopanya data ho tsoa ho liprothokholo tse fapaneng, ho sebelisoa lihlooho ho khetholla mefuta.
Ho USB 3.2, phetiso ea video ea DisplayPort le data ea USB 3.2 e fetisoa ho li-adapter tse fapaneng tsa liteishene, ha ho USB4, video ea DisplayPort, data ea USB 3.2 le data ea PCIe e ka fetisoa ka kanale e le 'ngoe, e leng phapang e kholo lipakeng tsa tse peli. U ka bona setšoantšo se ka tlase ho tebisa kutloisiso ea hau.
Liteishene tsa USB4 li ka nahanoa e le litselana tse ka fetisang mefuta e fapaneng ea likoloi, mme data ea USB, data ea DP, le data ea PCIe e ka nahanoa e le likoloi tse fapaneng. Ho na le likoloi tse fapaneng litseleng tse tšoanang ho khanna ka mokhoa o laolehileng, 'me USB4 e fetisetsa mefuta e fapaneng ea data mocha o le mong. Lintlha tsa USB3.2, DP le PCIe li kopanngoa pele, li romelloa ka mocha o le mong, li romelloa lisebelisoa tse ling, ebe li aroloa ka mefuta e 3 e fapaneng ea data.
Tlhaloso ea sebopeho sa cable ea USB3.2
Litabeng tsa USB 3.2, mofuta oa USB Type-C oa lebelo le holimo o sebelisoa ka botlalo. USB Type-C e na le likanale tse 2 tsa phetisetso ea data ea lebelo le holimo, tse bitsoang (TX1+/TX1-, RX1+/RX1-) le (TX2+/TX2-, RX2+/RX2-), pele USB 3.1 e ne e sebelisa e le 'ngoe feela ea likanale ho fetisa data. , mme kanale e nngwe e ne e le teng ka mokgwa wa bekapo. Ho USB 3.2, liteishene ka bobeli li ka khoneha ha ho loketse, 'me lebelo le leholo la phetisetso ea 10Gbps ka mocha le ka finyelloa, e le hore kakaretso e be 20Gbps, ho sebelisa 128b / 132b encoding, lebelo la sebele la data le ka fihla hoo e ka bang 2500MB / s, e leng e habeli ka kotloloho ea USB 3.1 ea kajeno. Ho bohlokoa ho bolela hore ho chencha mocha oa USB 3.2 ha ho na moeli ka ho felletseng mme ha ho hloke ts'ebetso e khethehileng ea mosebelisi.
Lithapo tsa USB3.1 li tšoaroa ka tsela e tšoanang le ea USB 3.0. Taolo ea Impedance: Ho senyeha ha moeli oa phapang oa SDP o sirelelitsoeng ho laoloa ho 90Ω ± 5Ω, 'me mohala o le mong oa coaxial o laoloa ho 45Ω ± 3Ω. Ho lieha ka har'a para e fapaneng ho ka tlase ho 15ps / m, 'me tahlehelo e setseng ea ho kenya le matšoao a mang a lumellana le USB3.0, mme sebopeho sa cable se khethoa ho latela mesebetsi le lihlopha tsa maemo le litlhoko tsa kopo: VBUS: Lithapo tse 4 ho netefatsa hore motlakase o teng hona joale; Vconn: ho fapana le VBUS, e fana feela ka marang-rang a 3.0 ~ 5.5V; Matla feela chip ea thapo; D +/D-: Letšoao la USB 2.0, molemong oa ho ts'ehetsa plugging pele le morao, ho na le lipara tse peli tsa matšoao ka lehlakoreng la sokete; TX +/- le RX +/-: lihlopha tsa 2 tsa lipontšo, lipara tsa 4 tsa lipontšo, tšehetso ea pele le ho khutlisetsa morao; CC: Hlophisa matšoao, netefatsa le ho laola likhokahano tsa mohloli oa mohloli; SUB: Letšoao la tšebetso le atolositsoeng, le fumaneha bakeng sa molumo.
Haeba ho ts'oaroa ha mohala oa phapang o sirelelitsoeng ho laoloa ho 90Ω ± 5Ω, ho sebelisoa mohala oa coaxial, ho khutla ha mobu oa pontšo ho pholletsa le GND e sirelelitsoeng, 'me mohala o le mong oa coaxial o laoloa ho 45Ω±3Ω, empa tlas'a bolelele bo fapaneng ba cable. , maemo a ts'ebeliso ea sebopeho se khethollang khetho ea mabitso le khetho ea sebopeho sa cable.
USB 3.2 Gen 1x1 - SuperSpeed, 5 Gbit/s (0.625 GB/s) sekgahla sa matshwao a data ho feta lane e le 1 ho sebedisa khouto ya 8b/10b, ho tshwana le USB 3.1 Gen 1 le USB 3.0.
USB 3.2 Gen 1x2 - SuperSpeed+, e ncha 10 Gbit/s (1.25 GB/s) sekgahla sa data ka litsela tse 2 ho sebelisoa khouto ea 8b/10b.
USB 3.2 Gen 2x1 - SuperSpeed+, 10 Gbit/s (1.25 GB/s) sekhahla sa data tseleng e le 'ngoe e sebelisa 128b/132b khouto, e tšoanang le USB 3.1 Gen 2.
USB 3.2 Gen 2x2 - SuperSpeed+, sekgahla se setjha sa 20 Gbit/s (2.5 GB/s) ho feta ditsela tse 2 ho sebedisa khouto ya 128b/132b.
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Nako ea poso: Jul-18-2023