Input-output organization


Determines which interrupt is to be served first when two or more requests are made simultaneously



Download 2,05 Mb.
bet12/17
Sana17.07.2022
Hajmi2,05 Mb.
#814847
1   ...   9   10   11   12   13   14   15   16   17
Determines which interrupt is to be served first when two or more requests are made simultaneously

  • Also determines which device’s interrupts are permitted to interrupt the computer while another is being serviced

  • Higher priority interrupts can make requests while servicing a lower priority interrupt




    PRIORITY INTERRUPT

    Priority Interrupt by Software(Polling)

    • Priority is established by the order of polling the devices

    (interrupt sources)

    • Flexible since it is established by software

    • Low cost since it needs a very little hardware

    • Very slow




    PRIORITY INTERRUPT

    Priority Interrupt by Hardware

    • Require a priority interrupt manager which accepts all the interrupt requests to determine the highest priority request

    • Fast since identification of the highest priority interrupt request is identified by the hardware

    • Fast since each interrupt source has its own interrupt vector to access directly to its own service routine

    Priority Interrupt

    HARDWARE PRIORITY INTERRUPT - DAISY-CHAIN -


    Download 2,05 Mb.

    Do'stlaringiz bilan baham:
  • 1   ...   9   10   11   12   13   14   15   16   17




    Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©hozir.org 2024
    ma'muriyatiga murojaat qiling

    kiriting | ro'yxatdan o'tish
        Bosh sahifa
    юртда тантана
    Боғда битган
    Бугун юртда
    Эшитганлар жилманглар
    Эшитмадим деманглар
    битган бодомлар
    Yangiariq tumani
    qitish marakazi
    Raqamli texnologiyalar
    ilishida muhokamadan
    tasdiqqa tavsiya
    tavsiya etilgan
    iqtisodiyot kafedrasi
    steiermarkischen landesregierung
    asarlaringizni yuboring
    o'zingizning asarlaringizni
    Iltimos faqat
    faqat o'zingizning
    steierm rkischen
    landesregierung fachabteilung
    rkischen landesregierung
    hamshira loyihasi
    loyihasi mavsum
    faolyatining oqibatlari
    asosiy adabiyotlar
    fakulteti ahborot
    ahborot havfsizligi
    havfsizligi kafedrasi
    fanidan bo’yicha
    fakulteti iqtisodiyot
    boshqaruv fakulteti
    chiqarishda boshqaruv
    ishlab chiqarishda
    iqtisodiyot fakultet
    multiservis tarmoqlari
    fanidan asosiy
    Uzbek fanidan
    mavzulari potok
    asosidagi multiservis
    'aliyyil a'ziym
    billahil 'aliyyil
    illaa billahil
    quvvata illaa
    falah' deganida
    Kompyuter savodxonligi
    bo’yicha mustaqil
    'alal falah'
    Hayya 'alal
    'alas soloh
    Hayya 'alas
    mavsum boyicha


    yuklab olish