Dongosolo la USB 2.0 & Information Connector
USB 2.0 ndiyeso ya Universal Serial Bus (USB). Pafupifupi zipangizo zonse zomwe zili ndi mphamvu za USB, komanso pafupifupi zipangizo zonse za USB, zothandizira osachepera USB 2.0.
Zida zomwe zimatsatira miyezo ya USB 2.0 zimatha kufalitsa deta pamtunda wothamanga wa 480 Mbps. Izi ndizowonjezereka kuposa akale USB 1.1 olemekezeka ndi ocheperapo kusiyana ndi momwe mungagwiritsire ntchito USB 3.0 yatsopano.
USB 1.1 inatulutsidwa mu August 1998, USB 2.0 mu April 2000, ndi USB 3.0 mu November 2008.
Dziwani: USB 2.0 imatchedwa Hi-Speed USB .
Othandizira a USB 2.0
Zindikirani: Plug ndi dzina loperekedwa kwa wothandizira wamwamuna pa chingwe cha USB 2.0 kapena pagalimoto , pamene cholandilira ndi dzina loperekedwa kwa chida chachikazi pa chipangizo cha USB 2.0 kapena chingwe chowonjezera.
- Mtundu wa USB A : Ogwirizanitsa awa amatchedwa USB 2.0 Standard-A ndipo ali ndi makina okhwima a USB omwe mumapeza pazipangizo zambiri zopanda mafoni. USB 2.0 Mtundu A ojambulira amawoneka bwino ndi omwe akuchokera ku USB 3.0 ndi USB 1.1.
- Mtundu wa USB B : Ogwirizanitsa awa amatchedwa USB 2.0 Standard-B ndipo ali ndi malo owerengeka kupatulapo mpang'ono pomwe pamwamba. USB 2.0 mtundu wa B plugs ndi ofanana ndi USB 3.0 ndi USB 1.1 mtundu wa mapulogalamu a B but USB 3.0 mtundu wa B plugs siulumikizana ndi USB 2.0 mtundu wa B.
- USB Micro-A: Ogwirizanitsa awa, makamaka mapulagi, amawoneka ngati mawonekedwe a USB 2.0 Olemba A ojambulira. USB 2.0 Micro-A plugs amagwirizana ndi zonse 2.0 2.0 Micro-AB zotengera ndi USB 3.0 Micro-AB zokopa. Komabe, makina atsopano a USB 3.0 Micro-A plugs sangagwirizane ndi zotengera za USB 2.0 Micro-AB.
- USB Micro-B: Ogwirizanitsa awa ndi ang'onoang'ono komanso amphongo angapo koma makona awiri mbali imodzi amamera m'malo mmalo mwake. Mapulogalamu a USB 2.0 A Micro-B amagwirizana ndi ziwiya zinayi: USB 2.0 ndi USB 3.0 Maselo a Micro-B ndi Micro-AB. Zatsopano zatsopano za USB 3.0 Zing'onoting'ono za B-B sizikumbuyo zogwirizana ndi USB 2.0 Micro receptacle.
- USB Mini-A: Ogwirizanitsa awa ndi ang'onoang'ono ndipo ambiri amphindiphati ndi mbali imodzi yozungulira kwambiri. USB 2.0 Mini-A-plugs imagwirizana ndi USB 2.0 Mini-AB zotengera.
- USB Mini-B: Ogwirizanitsa awa ndi ang'onoang'ono ndipo ambiri amakhala amphindiphati ndi zilembo zomveka pambali yochepa. Mapulogalamu a USB 2.0 Mini-B amagwirizana ndi USB 2.0 Mini-B ndi USB 2.0 Mini-AB zotengera.
Dziwani kuti ndi USB 2.0 yokha imene imathandizira USB Mini-A, USB Mini-B, ndi USB Mini-AB.
Onani kabati yathu yofananako ya USB yolemba tsamba limodzi la zomwe zikugwirizana ndi-zomwe.
Chipangizo Chogwirizanitsa Chimatuluka
Zida zamakono za USB 1.1 ndi zingwe, makamaka, zimagwirizana ndi hardware USB 2.0. Komabe, njira yokha yofikira maulendo opatsirana a USB 2.0 ndi ngati zipangizo zonse ndi zingwe zogwirizana zimathandizira USB 2.0.
Mwachitsanzo, ngati muli ndi chipangizo cha USB 2.0 chogwiritsidwa ntchito ndi chingwe cha USB 1.0, liwiro la 1.0 lidzagwiritsidwa ntchito mosasamala kanthu kuti chipangizocho chimagwirizira USB 2.0 popeza kuti chingwecho sichichirikiza zatsopano, mofulumira.
Zipangizo za USB 2.0 ndi zipangizo zomwe zimagwiritsidwa ntchito ndi zipangizo za USB 3.0 ndi zingwe, poganiza kuti zimagwirizana, zimagwira ntchito yotsika kwambiri ya USB 2.0.
Mwa kuyankhula kwina, liwiro la kutumiza limagwera kwa wamkulu wa matekinoloje awiri. Izi zimakhala zomveka chifukwa simungakhoze kukoka USB 3.0 mwamphamvu kuchokera pa kabuku ka USB 2.0, komanso simungapeze mawindo opatsirana a USB 2.0 pogwiritsa ntchito chingwe cha USB 1.1.
USB Yoyenda-kw-(OTG)
USB Yowonjezera inatulutsidwa mu December 2006, pambuyo pa USB 2.0 koma pamaso pa USB 3.0. USB OTG imalola makina kusinthana pakati pa otsogolera ndi akapolo ngati kuli kofunikira kuti athe kulumikizana mwachindunji.
Mwachitsanzo, foni yamakono kapena piritsi ya USB 2.0 ikhoza kukoka deta kuchoka pa galimoto yowonetsera ngati wolumikiza koma kenako ikasinthira ku kachitidwe ka akapolo pamene imagwirizanitsidwa ndi kompyuta kuti chidziwitso chichotsedwe.
Chipangizo chimene chimapatsa mphamvu (woyang'anira) chimaonedwa kuti ndi OTG A-chipangizo pomwe icho chimadya mphamvu (kapolo) amatchedwa chipangizo cha B. Kapoloyo amagwira ntchito ngati chipangizo cha pulogalamuyi .
Kusintha ntchito kumagwiritsidwa ntchito pogwiritsa ntchito Host Negotiation Protocol (HNP), koma kusankha mwakagwiritsa ntchito chipangizo cha USB 2.0 chomwe chiyenera kuonedwa kuti ndi kapolo kapena wolandiridwa mwachisawawa ndi kosavuta ngati kusankha chingwe chomwe chingwecho chikugwirizanako.
Nthaŵi zina, kuyendetsa kwa HNP kudzachitika ndi woyang'anira kuti adziwe ngati kapoloyo akupempha kuti akakhale wolandiridwa, pokhapokha atasintha malo. USB 3.0 imagwiritsa ntchito HNP kusankhanso komanso imatchedwa Role Swap Protocol (RSP).