This message is from the T13 list server.
Hale
I would like you to please looks at 5.14.5.5 in ATA/ATAPI-7 v1 also
please look at 5.14.5.7. As you can see, the ERR bit can change when DRQ or
BSY is 1. This is normal PATA operation as I understand it. Further, I
believe these sections make it clear that DRQ does not require BSY=1 to
change.
------------------------------------------------
Curtis E. Stevens
20511 Lake Forest Drive #C-214D
Lake Forest, California 92630
Phone: 949-672-7933
Cell: 949-307-5050
E-Mail: [EMAIL PROTECTED]
My friends and I were on a beer run and noticed that the cases were
discounted 10%. Since it was a big party, we bought two cases. The cashier
multiplied two times 10% and gave us a 20% discount... and then he voted
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hale
Landis
Sent: Monday, November 15, 2004 4:01 PM
To: T13 List Server
Subject: Re: [t13] e04155r0 - DRQ=0 When ERR=1 Feature
This message is from the T13 list server.
Curtis Stevens wrote:
> This message is from the T13 list server.
> Some devices clear BSY, but leave DRQ set to allow them to do
> whatever at the end of a data transfer. When the device has actually
> completed the command internally, then they clear DRQ. ATAPI devices are
> the biggest offenders here.
This would be a complete violation of the PATA PACKET command protocol.
Hale
--
++ Hale Landis ++ www.ata-atapi.com ++
