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Thread: IRQ Channels?

  1. March 24th, 2003, 02:37 PM #1
    potato mcgrew
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    Question IRQ Channels?

    Hey all. I was wondering if anyone could give me a basic explanation as to what an IRQ channel is, what it does, ect. Im not sure, But at a guess does it have anything to do with hardware and peripherals communicating with the processor?, as in, making a channel for data to run to and from the peice of hardware to the processor?

    All help appreciated.
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  2. March 24th, 2003, 03:20 PM #2
    Shrekkie
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    Well

    IRQ stands for Interrupt Request. This is the request every piece of hardware has to do to the processor to get a job done.
    If the processor gets simultenaous request from different pieces of hardware, he will handle the lowest IRQ first, that is 1 normally, and so up to mostly 15.

    So 4 has to wait 'till the processor has finished the job from 3 and so on...

    Hope this helps a bit,

    Greetz,

    *** EDIT *** Take a look at this one , http://www.webopedia.com/TERM/I/IRQ.html
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  3. March 24th, 2003, 08:58 PM #3
    potato mcgrew
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    Thanks for clearing that up for me
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