Nduzi Kachasị Elu maka USB4 Site na 40Gbps Ọsọ, Bandwidth Dimension ruo Njikọ Otu Waya Na-arụ Ọrụ Zuru Oke
Kemgbe e mepụtara USB4, anyị na-ebipụta ọtụtụ akụkọ na njikọ iji kesaa ozi dị mkpa. Agbanyeghị, ewu ewu dị elu nke na ndị mmadụ nọ ebe niile na-ajụ maka ahịa USB4. Malite na mmalite oge USB 1.0 na njikọ nnyefe data 1.5Mbps, USB agafeela ọtụtụ ọgbọ. Enweela ọtụtụ nkọwapụta dịka USB 1.0, USB 2.0, na USB 3.0, ụdị na atụmatụ nhazi nke interface gụnyere USB Type-A, USB Type-B, na USB Type-C kachasị ugbu a, wdg. USB4 abụghị naanị na ọ nwere ọsọ nnyefe ngwa ngwa kamakwa ọ nwere ndakọrịta ka mma (na-akwado ndakọrịta azụ, ya bụ, ndakọrịta na ụdị ndị dị ala). Ọ nwere ike ijikọ ihe fọrọ nke nta ka ọ bụrụ ngwaọrụ niile nke ọma ma chajịa ha. Ọ bụrụ na ekwentị gị, kọmputa, ihe nlekota, igwe nbipute, wdg niile na-akwado USB4, mgbe ahụ n'echiche, naanị eriri data nke na-akwado USB4 iji jikọọ ngwaọrụ ndị ahụ, na-eme ka ụlọ ọrụ ụlọ dịkwuo mfe. Ịkwesighi ịzụta ọtụtụ eriri mgbanwe interface. Ya mere, USB4 nwere ike ime ka ọnọdụ ọrụ anyị dịkwuo iche iche ma dị mma. Na mgbakwunye, ihe ọzọ dị ịrịba ama nke USB4 bụ na a na-atụ anya na a ga-etinye ya na ngwaọrụ ndị na-akwado kọmputa ọgụgụ isi artificial.
01 USB4 megide USB3.2
USB 3.2 bụ ọkọlọtọ ọhụrụ nke otu USB-IF wepụtara. E webatara ya na Septemba 2017. Site n'echiche teknụzụ, USB 3.2 bụ mmezi na mgbakwunye na USB 3.1. Mgbanwe bụ isi bụ na amụbaala ọsọ nnyefe data ruo 20 Gbps, interface ahụ ka na-esokwa ya.Ụdị-Catụmatụ e guzobere n'oge USB 3.1, anaghịzi akwado njikọ Ụdị-A na Ụdị-B. Ma USB4 na USB3.2 na-eji njikọ Ụdị-C, mana USB4 dị mgbagwoju anya karịa. USB4 na-akwado nnyefe na nnabata nke host-to-host, PCI Express® (PCIe®), DisplayPort ọdịyo/vidiyo, na data USB site na otu njikọ Ụdị-C na otu njikọ ahụ. Ndị nnabata USB4 abụọ nwere ike ịgbanwe ngwugwu data IP site na ọwara host-to-host; nnyefe DisplayPort na ọwara USB pụtara na enwere ike ibufe ọdịyo, vidiyo, data, na ike site na otu interface ahụ, nke dị ngwa karịa iji USB3.2. Na mgbakwunye, nnyefe ọwara PCIe nwere ike inye nnukwu bandwidth, obere latency, ma nweta nnukwu throughput maka nchekwa nnukwu ikike, ọgụgụ isi artificial, na ikpe ojiji ndị ọzọ.
USB4 na-ejikọta ọwa nnyefe na nnata abụọ n'ime otu njikọ USB-C, yana ọnụego ruru 20 Gbps na40 Gbps, ọwa ọ bụla nwere ike inwe ọnụego data nke ihe dị ka 10 Gbps ma ọ bụ 20 Gbps. Maka ndị mmepe chip, data a dị oke mkpa. Ha kwesịrị ịma na na ụdị Thunderbolt3, ọnụego data na ọwa nnyefe na nnata ọ bụla bụ 10.3125 Gbps ma ọ bụ 20.625 Gbps. Na ụdị USB ọdịnala, naanị otu ọwa nnyefe/nnabata na-agba ọsọ na ọnụego nke5 Gbps (USB3.0) or 10 Gbps (USB3.1), ebe ọwa abụọ nke USB3.2 na-agba ọsọ na ọnụego 10 Gbps.
Maka ogologo oge, ihe ndị nwere ike na njikọ Type-C bụ isi ihe mkpuchi ígwè dị n'èzí, nke siri ike ma ghara ịdị mfe imebi. A na-echekwa ọwa data etiti site na mkpuchi dị ka arc, nke na-eme ka ọ sie ike imebi. Ihe ndị a chọrọ maka imewe na-egosi naỤdị USB-Cnwere ike iguzogide ihe karịrị plọg iri ma wepụ plọg na-enweghị mmebi. Ọ bụrụ na agbakọọ ya dabere na plọg atọ na mwepụ plọg kwa ụbọchị, enwere ike iji njikọ USB Type-C ruo opekata mpe afọ iri.
02 Ntinye ngwa ngwa nke USB4
Mgbe ewepụtara usoro USB 3.2 n'ihu ọha, ụlọ ọrụ USB kwupụtara ozugbo nkọwapụta nke USB 4 n'ime obere oge. N'adịghị ka ọkọlọtọ ndị gara aga dịkaUSB 3.2, nke dabere na usoro USB nkeonwe ya, USB 4 anaghịzi anabata nkọwapụta USB n'ọkwa ya dị mkpa kama ọ na-anabata usoro Thunderbolt 3 nke Intel ekpughere kpamkpam. Nke a bụ mgbanwe kachasị ukwuu na mmepe nke USB n'ime ọtụtụ iri afọ gara aga. Mgbe ị na-eji njikọ Type-C maka njikọ, ọrụ nke USB4 na-anọchi ndị nke USB 3.2, USB 2.0 nwekwara ike ịgba ọsọ n'otu oge. USB 3.2 Emelitere SuperSpeed ka bụ akụrụngwa bụ isi maka nnyefe "data USB" na ahịrị anụ ahụ USB 4. Ihe dị iche n'etiti USB4 na USB 3.2 bụ na USB4 na-adabere na njikọ. Emebere USB4 na ọwara iji zipu data site na ọtụtụ protocols na otu interface anụ ahụ. Ya mere, enwere ike ịkekọrịta ọsọ na ikike nke USB4 n'ụzọ dị iche iche. USB4 nwere ike ịkwado protocols ngosipụta ndị ọzọ ma ọ bụ nkwukọrịta onye ọbịa-na-host mgbe nnyefe data na-aga n'ihu. Na mgbakwunye, USB4 amụbaala ọsọ nkwukọrịta site na 20 Gbps (Gen2x2) nke USB 3.2 ruo40 Gbps (Gen3x2)n'otu usoro ihe owuwu abụọ ahụ, nke dị mfe abụọ.
USB4 anaghị enweta USB dị elu (dabere na USB3), kamakwa ọ na-akọwapụta ọwara ngosi dabere na DisplayPort na ọwara ibu/echekwa dabere na PCIe.
Akụkụ ngosipụta: Usoro ọwara ngosipụta nke USB4 dabere na DisplayPort 1.4a. DP 1.4a n'onwe ya na-akwado8k na 60Hz or 4k na 120Hz. Onye na-akwado USB4 kwesịrị ịkwado DisplayPort na ọdụ ụgbọ mmiri niile dị n'okpuru ala. Ọ bụrụ na ị jiri ọdụ ụgbọ mmiri USB 4 ziga vidiyo na data n'otu oge, ọdụ ụgbọ mmiri ahụ ga-ekenye bandwit dịka o kwesịrị. Ya mere, ọ bụrụ na vidiyo ahụ chọrọ naanị 20% nke bandwit iji kwọọ ihe nlele 1080p gị (nke bụkwa ebe etiti), mgbe ahụ enwere ike iji 80% nke vidiyo fọdụrụnụ nyefee faịlụ site na SSD mpụga.
Maka ọwara PCIe: Nkwado maka PCIe site na ndị na-akwado USB4 bụ nhọrọ. USB4 hubs kwesịrị ịkwado ọwara PCIe na mgbanwe PCIe dị n'ime kwesịrị ịdị.
Akụkụ dị mkpa nke nkọwapụta USB 4 bụ ikike ịgbanwe ọnụọgụ akụrụngwa dị mgbe ị na-eziga vidiyo na data site na otu njikọ ahụ. Yabụ, ka e were ya na ị nwere oke nke40Gbps USB 4ma na-edegharị faịlụ buru ibu site na SSD mpụga ma na-apụta na ngosipụta 4K. Ka e were ya na isi iyi vidiyo ahụ chọrọ ihe dị ka 12.5 Gbps. N'okwu a, USB 4 ga-ekenye 27.5 Mbps fọdụrụ na draịvụ nkwado ndabere.
USB-C na-ewebata "ụdị ọzọ", nke bụ ikike izipu vidiyo DisplayPort/HDMI site na ọdụ ụgbọ mmiri Type-C. Agbanyeghị, nkọwapụta 3.x dị ugbu a anaghị enye ezigbo ụzọ maka kewaa akụrụngwa. Dịka Saunders si kwuo, ụdị DisplayPort alt nwere ike kewaa bandwidth kpọmkwem n'etiti data USB na data vidiyo n'ime 50/50, ebe ụdị HDMI alt anaghị ekwe ka ejiri data USB mee ihe n'otu oge.
USB4 na-akọwapụta ọkọlọtọ nke 40Gbps, na-eme ka ikesa bandwidth dị ike ka otu eriri data wee nwee ike ịrụ ọrụ dị iche iche. Site na USB4, ọ ga-ekwe omume izipu PCIe n'otu oge ma gosipụta data n'otu ahịrị, yana ọrụ USB ọdịnala, ọbụna inye ike (site na USB PD) n'ụzọ dị mfe. N'ọdịnihu, ọtụtụ ngwaọrụ dị n'akụkụ, ma ọ bụ netwọk dị elu, kaadị eserese mpụga, ngosipụta dị elu, ngwaọrụ nchekwa dị elu nwere ikike dị elu, ma ọ bụ ọbụna otu igwe na igwe ọzọ, enwere ike ijikọ ya site na interface Type-C. Ọzọkwa, ọ bụrụ na ngwaọrụ ndị a ejiri USB4 Hub mee ihe, ị nwekwara ike ijikọ ngwaọrụ ndị ọzọ n'usoro ma ọ bụ alaka site na ngwaọrụ ndị a, nke dị oke mma.
Oge ozi: Ọktoba-20-2025
