| From: | Jesse McClusky |
| Date: | 24 Oct 2000 at 07:22:55 |
| Subject: | Re: AMIOPEN: Pfui ! :-/ |
> From: "Patrick Roberts" <artix@pacbell.net>
>
> This is a bit off-topic, but doesn't IDE/UDMA use (ie tie up) the main CPU
> during I/O operations? (As compared to something like SCSI which has
> a dedicated controller)?
IDE (more correctly known as ATA) does in *some*
implementations. UDMA doesn't. The DMA part of
UDMA means the same thing it did on the Classic
Amiga -- Direct Memory Access. The 'U' in this case
stands for "Ultra".
There's a good site that gives lots of info on stuff like this.
It's http://www.techadvice.com
Jesse
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