Working X3T13
Draft 2008D
Revision 7b
27 January 1997
Information Technology -
AT Attachment-3 Interface
(ATA-3)
This is a draft proposed American National Standard of Accredited Standards Committee X3. As such it is
not a completed standard. The X3T13 Technical Committee may modify this document as a result of
comments received during the review process.
Permission is granted to members of X3, its technical committees, and their associated task groups to
reproduce this document for the purposes of X3 standardization activities without further permission,
provided this notice is included. All other rights are reserved. Any commercial or for-profit replication or
republication is prohibited.
X3T13 Technical Editor:
Peter T. McLean
Maxtor Corporation
2190 Miller Drive
Longmont, CO 80501-6744
USA
Tel: 303-678-2149
Fax: 303-682-4811
Email: pete_mclean@maxtor.com
Reference number
ANSI X3.298 - 1997
Printed January, 17, 1997 12:09PM
X3T13/2008D Revision 7b
working draft AT Attachment-3 (ATA-3)
Other Points of Contact:
X3T13 Chair X3T13 Vice-Chair
Gene Milligan Pete McLean
Seagate Technology Maxtor Corporation
OKM 251 2190 Miller Drive
10323 West Reno (West Dock) Longmont, CO 80501
P.O. Box 12313 Tel: 303-678-2149
Oklahoma City, OK 73157-2313 Fax: 303-682-4811
Tel: 405-324-3070 E-mail: pete_mclean@maxtor.com
Fax: 405-324-3794
E-mail: gene_milligan@notes.seagate.com
X3 Secretariat
Lynn Barra
Administrator Standards Processing
X3 Secretariat
1250 Eye Street, NW Suite 200
Washington, DC 20005
Tel: 202-626-5738
Fax: 202-638-4922
Email: LBARRA@ITIC.NW.DC.US
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X3T13/2008D Revision 7b
working draft AT Attachment-3 (ATA-3)
DOCUMENT STATUS
Revision 0 - 28 February 1995
Initial document. Created from X3T10/948D Revision 2k, the proposed AT Attachment Interface
with Extensions (ATA-2) standard, and the following proposed additions:
X3T10/94-053r3 Reset Pulse Duration
X3T10/94-087r3 Security Mode
X3T10/94-154r1 Check Power Mode Enhancement
X3T10/95-144r0 Identify Device DMA
X3T10/95-145r0 Device 1 Only
It is the intent of the editor that any changes that may be made to X3T10/948D by the X3T10 be
implemented in this document as well. In addition, the editor has taken the liberty to make
improvements as deemed necessary, understanding that the entire document is subject to review
and change.
Revision 1 - 21 April 1995
Added changes made to X3T10/948D Revision 3 as a result of letter ballot. Rewrote Abstract,
Introduction and Scope. Added the proposals approved at the April 12-13, 1995 meeting as follows:
X3T10/95-125r2 Dynamic Power Selection
X3T10/95-155r0 Delete DASP timing clause 10.6
X3T10/95-198r0 DRDY max set time 30 sec
X3T10/95-198r0 Paragraph merge in READ MULTIPLE command
X3T10/95-199r0 Modify driver current
Revision 2 - 2 June 1995
Added proposal X3T10/95-154r1 and 10K pulldown to DD7 as approved at the 11 May 1995
meeting.
Revision 3 - 26 July 1995
Per the June 21-22 working group meeting:
Corrected reset timing figures
Added FFh not specified in revision word.
Removed word “non-shielded” from Clause 5.1.
Per the July 18-20 working group meeting:
Added ATAPI bit definition in word 1 of DEVICE ID response.
Removed DEVICE ID response word 71.
Moved DEVICE ID response words 72 and 73 to words 73 and 74.
Added SFF8035i S.M.A.R.T. into the standard.
Added X3T10/95-294r0, Set Features changes into document.
Reformatted protocol diagrams.
Added DD7 pull-down modification.
Deleted Annex A, reset considerations.
Moved 40-pin connector definition into new Annex A that includes other connector definitions
previously in Annex B and C.
Deleted the IOCS16- signal.
Deleted WRITE SAME command.
Made numerous other minor changes requested during page-by-page review.
X3T13/2008D Revision 7b
working draft AT Attachment-3 (ATA-3)
Revision 4 - 6 September 1995
Per the August 22-25 working group meeting:
Changed capacitance values in table 4.
Modified cable configuration in clause 4.1 and figure 2.
Removed 8-bit transfer mode.
Added bibliography.
Made LBA mandatory.
Made READ, WRITE, and SET MULTIPLE mandatory.
Removed single word DMA.
Made READ and WRITE DMA mandatory.
Inserted tables into command code definitions.
Made SET FEATURES mandatory.
Made numerous other changes requested during page-by-page review.
Revision 5 - 6 October 1995
Per the September 19-22 working group meeting:
Added text to clause 6.2.
Changed security mode definition to X3T10/95-329r0
Added text to READ/WRITE LONG
Changed protocol flowcharts to X3T10/95-330r1.
Added X3T10/95-331r0 to clause 7.4.
Deleted ACKNOWLEDGE MEDIA CHANGE, POST BOOT AND PRE BOOT COMMANDS.
Added signal integrity annex C, (modified SFF 8036I)
Made numerous other changes requested during page-by-page review.
Made editorial changes requested by the ANSI editor for ATA-2 document.
Revision 6 - 26 October 1995
Per the October 17-19 working group meeting:
Added command set supported, words 82-83, to IDENTIFY DEVICE response.
Deleted Bxh codes for security mode.
Made numerous other changes requested during page-by-page review.
Revision 7 - 25 April 1996
Resolution of letter ballot comments added per X3T13/D96112r2.
Revision 7a - 18 September 1996
Added editorial changes recommended by ANSI pre-edit.
Added public review comment restoring register transfer timing.
Revision 7b - 27 January 1997
Added X3 letter ballot comment changing DMARQ to DMACK- in clauses 5.2.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6,
5.2.7, 5.2.8, 5.2.10, 5.2.11 and 5.2.12.
X3T13/2008D Revision 7b
working draft AT Attachment-3 (ATA-3)
ANSI
®
X3.298-1997
American National Standard
for Information Systems
AT Attachment-3 Interface (ATA-3)
Secretariat
Information Technology Industry Council
Approved mm dd yy
American National Standards Institute, Inc.
Abstract
This standard specifies the AT Attachment Interface between host systems and storage devices. It provides
a common attachment interface for systems manufacturers, system integrators, software suppliers, and
suppliers of intelligent storage devices.
This standard maintains a high degree of compatibility with the AT Attachment Interface with Extensions
standard (ATA-2), X3.279-1996, and while providing additional functions, is not intended to require changes
to presently installed devices or existing software.