Me bukatar USB-Controller

Universal USB motar dubawa ne mai rare sirri kwamfuta. Su ba da damar for Daisy-chaining mahara na'urorin zuwa 127 raka'a. Universal USB-bas support aiki to connect / rarraba na'urorin ba tare da juya kashe ikon sirri kwamfuta. A wannan yanayin, hade da na'urorin za a iya powered kai tsaye ta hanyar kebul na ke dubawa, wanda gusar da bukatar yin amfani da ƙarin ikon kayayyaki. A wannan labarin, za mu magana game da wani na'urar kamar USB-kula. Mun la'akari da manufar, bayani dalla-dalla kuma iri.

Me bukatar USB-kula?

Wannan tsari na samar da sadarwa na duk alaka gefe na'urorin bas. USB-kula - mai fasaha da na'urar da ke iya mu'amala bypassing da CPU da RAM a cikin sirri kwamfuta ta cikin memory damar yanayin. By irin hadewa da irin wannan na'urorin za a iya tura matsayin wani ɓangare na tsarin dabaru ko kamar yadda raba haihuwarka (kwakwalwan kwamfuta) a matsayin mafi kwamfuta motherboard, da kuma 'yar Board (fadada katin). Bisa ga PCI dangane Hanyar USB-kula za a iya kaga ga PCI bas da PCI Express.

Bayani dalla-dalla da kuma iri na'urorin

Iri biyu daga cikin wadannan na'urorin da aka tsara don USB1.1 jaddadawa. Sabõda haka, domin USB1.0 Intel kamfanin raya USB-kula, kamar UHCI da OHCI. Bambanci tsakanin wadannan na'urori ne kawai a cikin Hanyar samun da rajista. A cikin farko idan da rajista suna da fasali mai shirya a sarari tsarin tashoshin jiragen ruwa, da alhakin shigar da fitarwa na bayanai, da kuma na biyu - ne a sashe na sirri kwamfuta memory. USB-OHCI mai kula da irin da aka dauke su more hankali fiye da da irin UHCI. Wannan amfani ta'allaka ne a ikon yantar da babban processor daga ciwon yin zaman yau da kullum ayyuka hade tare da canja wurin bayanai a kan USB bas. Dukansu masu kula ana amfani da 32-bit magance.

Domin USB2.0 mai kula tsara USB Universal Serial Bus Type EHCI. Shi ne iya tallafawa aikin a high gudun (480 Mbit / s). Wannan kula ta hanyar raba ma'amaloli goyon bayan low-gudun USB1.1 dubawa don su tallafa wa hankali da na'urorin.

Domin USB3.0 tsara gudun USB-type rundunar kula XHCI, wanda shi ne iya tallafawa musayar bayanai a duk uku gudu.

ƙarshe

Don takaita, bari mu ce cewa idan kwamfutarka ba shi da na USB-tashoshin jiragen ruwa, godiya ga qananan gyare-gyare, yana yiwuwa ya shigar da kebul-kula. Irin wannan na'urorin suna da za'ayi a cikin nau'i na wani fadada katin PCI-type ko PC-katunan ga kwamfyutocin. M masu kula suna samuwa tare da USB1.0 support 2.0 da kuma 3.0. Idan ka yanke shawarar kafa da kansu da irin wannan na'urar, shi ne mafi alhẽri zabi wani karin speedy, kamar yadda su kudin ne kusan guda. Bisa wannan ka'ida za a iya maye gurbinsu da wani data kasance mai kula da sauri. Duk da haka, irin wannan zamani dole ne ka manta da cewa za ka bukatar reinstall da direbobi ga mai kula don kammala aiki.