izindaba

I-USBiwukumiswa nokwenza lula isokhethi yokuxhuma imishini yekhompyutha ye-elekthronikhi, futhi ukucaciswa kwayo namamodeli akhiwe yi-Intel, NEC, Compaq, DEC, IBM (), Microsoft (Microsoft) kanye ne-Norterntelecom.
Enye inzuzo ebalulekile ye-USB ukuthi ilungele ukushintshaniswa okushisayo, okungukuthi, ngesikhathi sokusebenza, ingaxhuma ngokuphephile noma inqamule amadivaysi e-USB ukuze iqedele ukuxhumana kweqiniso kwe-1394.
Kulesi sigaba, nakuba okokusebenza kwe-USB sekusetshenziswe kabanzi, amasokhethi e-USB2.0 avame kakhulu, futhi izinga lawo lokudlulisa lingu-480mbps ngomzuzwana.Cishe izikhathi ezingama-40 kunezicaciso ze-USB1.1.Inzuzo enkulu kumakhasimende yokukhulisa isivinini ukuthi amakhasimende angasebenzisa amadivaysi e-peripheral asebenza kahle kakhudlwana, futhi amadivaysi e-peripheral esivinini esihlukahlukene angaxhunywa kumzila we-USB2.0 ngaphandle kokukhathazeka ngomthelela webhodlela wokudluliswa kwedatha.
I-Universal Serial Bus (IsiNgisi: I-Universal Serial Bus, ebizwa ngokuthi: i-USB) iwuhlelo lokucaciswa kwebhasi oluxhuma isofthiwe yekhompuyutha kanye namadivayisi asebenza ngogesi, futhi iyindinganiso yobuchwepheshe yezimbobo ze-I/O;ucwaningo kufanele lwengezwe, futhi imikhiqizo kufanele iqinisekiswe ucwaningo, kodwa akukho copyright edingekayo.Ngokwezinga lokudlulisela, ihlukaniswe nge-USB: 2.0, USB: 3.0, USB: 3.1 ne-USB4;I-USB3.1 ne-USB4 (isibizo esiyi-typec) ingadlulisela idatha, idlulise umsindo, isithombe nokushajwa kwebhethri.Amandla aphezulu ngu-20V5A (100W), futhi i-IC (E-MARK) iyadingeka.
Ngokusho kwendima, izimpawu ezingenhla zingahlukaniswa ngezigaba ezinhlanu:
Isigaba sokuqala: Amasignali ahlobene namandla, kuhlanganise.
A) I-VBUS, amandla ebhasi ekhebula le-USB (imvamisa ahambisana ne-VBUS ngomqondo wakho wangempela).
b) I-VCONN (isiginali ivela kuphela kupulaki) isetshenziselwa ukusabalalisa amandla kupulaki (kungacatshangwa ukuthi amanye amapulaki cishe anesekhethi yamandla).
C) I-GND, idivayisi ephansi.
Uhlobo II: Ikhebula lokushaja leselula le-USB2.0, i-D+/D-, ipheya eyodwa kuphela ekugcineni kwepulaki, ngokuhambisana nesicaciso sakudala se-USB2.0.Kodwa-ke, ukuze usebenzise kangcono ngaphambili nangemuva, ingafakwa ngokuzenzakalelayo.Isiphetho sesokhethi sichaza amaqembu ama-2, ukuze isiphetho sesokhethi sikwazi ukwenza i-ping efanele ngokuya ngesimo esithile.Uhlobo 3: Ikhebula lokushaja leselula le-USB3.1, i-TX+/ ne-RX+/, ukuze kudluliswe idatha ngokushesha.Kunamasethi ama-2 epulaki neziphetho zesokhethi, alungele noma yikuphi ukufakwa ngaphambili nangemuva.
Isigaba sesine: isignali esetshenziselwa Ukucushwa, ipulaki ine-CC eyodwa kuphela, futhi isokhethi inama-CC1 amabili ne-CC2.
Isigaba sesihlanu: Amasignali adingekayo kumphumela wesandiso, isimo sangempela sohlelo lokusebenza sinqunywa umthelela wokunweba ohambisanayo.
Ezinhlotsheni ezihlukene zamasokhethi namapulaki achazwe ku-3.1, kungenzeka kakhulu ukuthi lezi phinikhodi namasignali angu-24 ngeke zisetshenziselwe zonke izinhlelo zokusebenza.Sicela ubheke izinga le-USB Type-C.Ngaphezu kwalokho, ungase uqaphele ukuthi kumasiginali wephinikhodi we-USBType-C 24, Amandla (GND/VBUS) nolwazi lwedatha (D+/D-/TX/RX) kuhambisana ngokuphelele (kuMandla, noma kunjalo Faka, konke kuyafana. Okunye, okuhlanganisa i-CC, i-SBU ne-VCONN, isetshenziselwa ukuhlolwa kokuthwala, uhlobo lomugqa, njll.