I-USB 3.2 yeNzululwazi edumileyo (Icandelo 2)

I-USB 3.2 yeNzululwazi edumileyo (Icandelo 2)

Kwinkcazo ye-USB 3.2, i-speed-speed feature ye-USB Type-C isetyenziswa ngokupheleleyo. I-USB Type-C ineendlela ezimbini zothumelo lwedatha ephezulu, enegama (TX1 +/TX1-, RX1 +/RX1-) kunye (TX2 +/TX2-, RX2 +/RX2-). Ngaphambili, i-USB 3.1 yayisebenzisa kuphela enye yetshaneli ukusasaza idatha, kunye nelinye itshaneli ekhoyo njenge-backup. Kwi-USB 3.2, zombini iziteshi zinokwenziwa phantsi kweemeko ezifanelekileyo kwaye zifezekise isantya esiphezulu sokudlulisa i-10 Gbps kwishaneli nganye, okubangelwa yi-20 Gbps iyonke. Nge-128b/132b encoding, esona santya sedatha singafikelela malunga ne-2500 MB/s, nto leyo ephinda kabini ngokuthe ngqo xa kuthelekiswa ne-USB 3.1 yangoku. Kuyafaneleka ukuba uqaphele ukuba ukutshintshwa kwetshaneli kwi-USB 3.2 ayinamthungo ngokupheleleyo kwaye ayifuni nayiphi na imisebenzi ekhethekileyo evela kumsebenzisi.

Umqondiso kunye nendlela yokukhusela intambo ye-USB3.1 iyahambelana naleyo ye-USB3.0. Ukulawulwa kwe-impedance ye-SDP ekhuselweyo umgca ohlukeneyo ulawulwa kwi-90Ω ± 5Ω, kwaye umgca we-coaxial ophelile ulawulwa kwi-45Ω ± 3Ω. Ukulibaziseka kwangaphakathi kweebini ezihlukeneyo kungaphantsi kwe-15ps / m, kwaye enye ilahleko yokufaka kunye nezinye izibonakaliso zihambelana ne-USB3.0. Isakhiwo sekhebula sikhethwe ngokwemeko yesicelo kunye nomsebenzi kunye neemfuno zecandelo: I-VBUS: iingcingo ze-4 zokuqinisekisa ukuhamba kwe-voltage kunye ne-current; I-Vconn: Ihluke kwi-VBUS, inika kuphela uluhlu lwe-voltage ye-3.0 ~ 5.5V; inika kuphela amandla kwitshiphu yentambo; I-D +/D-: Umqondiso we-USB 2.0; ukuxhasa ukufakwa kwangaphambili kunye nokubuyisela umva, kukho izibini ezimbini zeempawu kwicala le-socket; I-TX +/- kunye ne-RX +/-: Amaqela e-2 amasignali, izibini ze-4 zeempawu, ezixhasayo phambili kunye nokufakwa umva; I-CC: isignali yoqwalaselo, iqinisekisa kunye nokulawula uxhulumaniso phakathi komthombo kunye ne-terminal; I-SUB: isignali yomsebenzi wokwandisa, ingasetyenziselwa umsindo.

Ukuba i-impedance yomgca wokwahlukana okhuselweyo ilawulwa kwi-90Ω ± 5Ω, kwaye umgca we-coaxial usetyenziswa, ukubuyiswa komhlaba wesignali nge-GND ekhuselekileyo. Kwimigca ye-coaxial enesiphelo esisodwa, i-impedance ilawulwa kwi-45Ω ± 3Ω. Nangona kunjalo, ukhetho lwamanqaku okudibanisa kunye nesakhiwo sekhebula kuxhomekeke kwiimeko zesicelo kunye nobude beentambo ezahlukeneyo.

I-USB 3.2 Gen 1 × 1 - SuperSpeed, 5 Gbit / s (0.625 GB / s) izinga lokubonisa idatha kwi-lane ye-1 usebenzisa i-encoding ye-8b / 10b, efanayo ne-USB 3.1 Gen 1 kunye ne-USB 3.0.
I-USB 3.2 Gen 1 × 2 - I-SuperSpeed ​​+, entsha ye-10 Gbit / s (1.25 GB / s) izinga ledatha kwiindlela ze-2 usebenzisa i-encoding ye-8b / 10b.
I-USB 3.2 Gen 2×1 – SuperSpeed+, 10 Gbit/s (1.25 GB/s) ireyithi yedatha kumzila omnye usebenzisa i-128b/132b encoding, efanayo ne-USB 3.1 Gen 2.
I-USB 3.2 Gen 2 × 2 - SuperSpeed ​​+, entsha 20 Gbit / s (2.5 GB / s) izinga ledatha kwiindlela ze-2 usebenzisa i-128b / 132b encoding.