Uhlolojikelele lwezinguquko ku-USB Interface
Phakathi kwazo, izinga lakamuva le-USB4 (elifana nekhebula le-USB4, i-USBC4 Kuye ku-USB C) okwamanje lisekela kuphela izixhumi ezibonakalayo zohlobo C. Ngaleso sikhathi, i-USB4 iyahambisana nezindawo/amaphrothokholi amaningi ahlanganisa i-Thunderbolt 3 (40Gbps Data), i-USB, i-Display Port, ne-PCIe. Izici zayo zokusekela i-5A 100W USB C Cable power supply kanye ne-USB C 10Gbps (noma i-USB 3.1 Gen 2) yokudlulisa idatha kubeka isisekelo sokuduma ngezinga elikhulu.
Uhlolojikelele lwe-Type-A/Type-B, Mini-A/Mini-B, kanye ne-Micro-A/Micro-B
1) Izimpawu zikagesi zohlobo A no-Type-B
Iphinikhodi ifaka i-VBUS (5V), D-, D+, ne-GND. Ngenxa yokusetshenziswa kokudluliswa kwesignali ehlukile, idizayini yokuxhumana ye-USB 3.0 A Male kanye ne-USB 3.1 Type A ibeka phambili ukuxhumeka kwamandla (i-VBUS/GND made), kulandelwa imigqa yedatha (i-D-/D+ mifushane).
2) Izimpawu zikagesi ze-Mini-A/Mini-B ne-Micro-A/Micro-B
I-Mini USB ne-Micro USB (efana ne-USB3.1 Micro B TO A) inoxhumana nabo abahlanu: VCC (5V), D-, D+, ID, ne-GND. Uma kuqhathaniswa ne-USB 2.0, ulayini we-ID owengeziwe wengezwa ukuze kusekelwe ukusebenza kwe-USB OTG.
3) Isixhumi esibonakalayo se-USB OTG (Isebenza NJENGUMSINDI noma IDIVAYISI)
I-USB ihlukaniswe yaba i-HOST (umsingathi) kanye ne-DEVICE (noma isigqila). Amanye amadivayisi angase adinge ukusebenza njenge-HOST ngezinye izikhathi nanjenge-DEVICE ngezinye izikhathi. Ukuba nezimbobo ezimbili ze-USB kungafinyelela lokhu, kodwa kuwukumosha izinsiza. Uma imbobo ye-USB eyodwa ingasebenza njengokuthi HOST kanye neDEVICE, kungaba lula kakhulu. Ngakho, i-USB OTG yathuthukiswa.
Manje umbuzo uphakama: Isixhumi esibonakalayo se-USB OTG sazi kanjani ukuthi kufanele sisebenze njenge-HOST noma i-DEVICE? Ulayini wokuthola i-ID usetshenziselwa ukusebenza kwe-OTG (izinga eliphezulu noma eliphansi lomugqa we-ID libonisa ukuthi imbobo ye-USB isebenza kumodi ye-HOST noma ye-DEVICE).
I-ID = 1: Idivayisi ye-OTG isebenza kumodi yesigqila.
I-ID = 0: Idivayisi ye-OTG isebenza kumodi yokusingatha.
Ngokuvamile, izilawuli ze-USB ezihlanganiswe kuma-chips zisekela ukusebenza kwe-OTG futhi zinikeza isixhumi esibonakalayo se-USB OTG (exhunywe kusilawuli se-USB) se-Mini USB noma i-Micro USB nezinye izixhumanisi ezinomugqa we-ID okufanele zifakwe futhi zisetshenziswe.
Uma kunesixhumi esibonakalayo esisodwa se-Mini USB (noma isixhumi esibonakalayo se-Micro USB), futhi uma ufuna ukusebenzisa imodi yokusingatha ye-OTG, uzodinga ikhebula le-OTG. Isibonelo, ikhebuli ye-OTG ye-Mini USB iboniswa ngezansi emfanekisweni: Njengoba ubona, ikhebula le-Mini USB OTG linomkhawulo owodwa njengesokhethi le-USB A kanti elinye linomkhawulo njengepulaki ye-Mini USB. Faka ipulaki ye-Mini USB kusixhumi esibonakalayo se-Mini USB OTG yomshini, futhi idivayisi ye-USB exhunyiwe kufanele ixhunywe kusokhethi ye-USB A ngakolunye uhlangothi. Isibonelo, i-USB flash drive. Ikhebula le-USB OTG lizokwehlisa ulayini kamazisi, ngakho umshini uyazi ukuthi kufanele usebenze njengomsingathi ukuze uxhumeke kudivayisi yesigqila yangaphandle (njenge-USB flash drive).
Isikhathi sokuthumela: Aug-13-2025
