Isishwankathelo soTshintsho kwi-USB Interfaces

Isishwankathelo soTshintsho kwi-USB Interfaces

Phakathi kwazo, umgangatho we-USB4 wamva nje (ofana ne-USB4 Cable, i-USBC4 ukuya kwi-USB C) okwangoku ixhasa kuphela ujongano lwe-Type-C. Okwangoku, i-USB4 iyahambelana nojongano/iiprothokholi ezininzi ezibandakanya iThunderbolt 3 (40Gbps Data), USB, Display Port, kunye nePCIe. Iimpawu zayo zokuxhasa i-5A 100W i-USB C i-Cable power supply kunye ne-USB C 10Gbps (okanye i-USB 3.1 Gen 2) yokuhanjiswa kwedatha kubeka isiseko sokuthandwa okukhulu.

Isishwankathelo soHlobo-A/uHlobo-B, iMini-A/eMncinci-B, kunye neMicro-A/Micro-B

1) Iimpawu zoMbane zoMbane we-A kunye ne-Type-B
I-pinout ibandakanya i-VBUS (5V), i-D-, i-D+, kunye ne-GND. Ngenxa yokusetyenziswa kokudluliselwa kwesignali eyahlukileyo, uyilo loqhagamshelwano lwe-USB 3.0 A Male kunye ne-USB 3.1 Uhlobo lwe-A lubeka phambili uxhulumaniso lwamandla (i-VBUS / GND inde), ilandelwa yimigca yedatha (i-D-/D + imfutshane).
2) Iimpawu zoMbane zeMini-A/iMini-B kunye neMicro-A/Micro-B
I-Micro USB kunye neMicro USB (efana ne-USB3.1 Micro B TO A) inabafowunelwa abahlanu: VCC (5V), D-, D+, ID, kunye ne-GND. Xa kuthelekiswa ne-USB 2.0, umgca we-ID owongezelelweyo wongezwa ukuxhasa ukusebenza kwe-USB OTG.
3) USB OTG Interface (Inokusebenza njenge HOST okanye ISIXHOBO)
I-USB yahlulwe yaba yi-HOST (i-host) kunye ne-DEVICE (okanye ikhoboka). Ezinye izixhobo zinokufuna ukusebenza njenge-HOST ngamanye amaxesha kunye ne-DEVICE ngamanye amaxesha. Ukuba nezibuko ezimbini ze-USB kunokufezekisa oku, kodwa yinkcitho yemithombo. Ukuba isibuko esinye se-USB sinokusebenza njenge-HOST kunye ne-DEVICE, kuya kuba lula ngakumbi. Ngaloo ndlela, i-USB OTG yaphuhliswa.
Ngoku umbuzo uvela: Ingaba i-USB OTG interface yazi njani ukuba kufuneka isebenze njenge-HOST okanye i-DEVICE? Umgca wokufumanisa i-ID usetyenziselwa ukusebenza kwe-OTG (umgangatho ophezulu okanye ophantsi womgca we-ID ubonisa ukuba i-USB port isebenza kwi-HOST okanye i-DEVICE mode).
I-ID = 1: Isixhobo se-OTG sisebenza kwimodi yamakhoboka.
I-ID = 0: Isixhobo se-OTG sisebenza kwimodi yokusingatha.
Ngokubanzi, abalawuli be-USB abadityanisiweyo kwiitshiphusi baxhasa ukusebenza kwe-OTG kwaye babonelele ngojongano lwe-USB OTG (eqhagamshelwe kwisilawuli se-USB) ye-Mini USB okanye i-Micro USB kunye nolunye ujongano olunomgca we-ID oza kufakwa kwaye usetyenziswe.

Ukuba kukho ujongano lwe-Mini USB (okanye ujongano lwe-Micro USB), kwaye ukuba ufuna ukusebenzisa imowudi yomnini we-OTG, uya kufuna intambo ye-OTG. Umzekelo, intambo ye-OTG ye-Mini USB iboniswe ngezantsi kumfanekiso: Njengoko ubona, i-Mini USB OTG intambo inesiphelo esinye njengesokethi ye-USB A kunye nesinye isiphelo njengeplagi ye-Mini USB. Faka iplagi ye-Mini ye-USB kwi-Mini USB OTG ujongano lomatshini, kunye nesixhobo se-USB esiqhagamshelwe kwisokethi ye-USB kwelinye icala. Ngokomzekelo, i-USB flash drive. Intambo ye-USB ye-OTG iya kuthoba umgca we-ID, ngoko umatshini uyazi ukuba kufuneka usebenze njengenginginya ukuxhuma kwisixhobo sangaphandle sekhoboka (njenge-USB flash drive).