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SubjectRe: Incorrect UDMA timing on VIA vt82c596b
On Tue, Oct 10, 2000 at 12:20:07PM -0400, Mark Hahn wrote:

> > Btw, reading the ATA/ATAPI-6 specs I think UDMA66 should work on a
> > setup where would be just one drive and a really short, 40-wire cable
> > without problems as well. I've even seen systems shipped like that.
> uh, what part of the spec leads you to that conclusion?
> I've haven't seen a draft more recent than ~1h2000, but
> they've been unambiguous about absolutely requiring
> 80-conductors for >= ata66, and that two-connector cables
> must be 5<=l<=18, and three-connector cables 10<=l<=18.

ATA/ATAPI-6 draft rev. 0a, page 14 (sheet 28 of 404), table 2, row 4,
column 1, plus comment 4 in the same table.

And from the engineering point of view, it seems reasonable, too.

Vojtech Pavlik
SuSE Labs
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