[SOLVED] ATA Interrupt for PIO

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HugeCode
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[SOLVED] ATA Interrupt for PIO

Post by HugeCode »

Hi all. I have a simple newbie question. I read this page and I found this:

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7. .........
8. Wait for an IRQ or poll
9. ...........
What will this IRQ signalize and what does it mean 'poll'? Why are there two possibilities?
Last edited by HugeCode on Tue Apr 16, 2013 9:49 am, edited 1 time in total.
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iansjack
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Re: ATA Interrupt for PIO

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Mikemk
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Re: ATA Interrupt for PIO

Post by Mikemk »

The IRQ means that the drive will tell the PIC to tell the CPU to call your interrupt handler
Polling is repeatedly checking the status register
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