1、ANSI INCITS 317-1998 (R2003)(formerly ANSI NCITS 317-1998)for Information Technology AT Attachment with Packet Interface Extension (ATA/ATAPI-4)ANSINCITS 317-1998American National Standardfor Information Technology AT Attachment with Packet Interface Extension (ATA/ATAPI-4)SecretariatInformation Tec
2、hnology Industry CouncilApproved October 16, 1998 American National Standards Institute, Inc.AbstractThis standard specifies the AT Attachment Interface between host systems and storage devices. It pro-vides a common attachment interface for systems manufacturers, system integrators, software suppli
3、ers,and suppliers of intelligent storage devices. It includes the Packet Command feature set implemented bydevices commonly known as ATAPI devices.This standard maintains a high degree of compatibility with the AT Attachment-3 Interface (ATA-3), ANSIX3.298-1997, and while providing additional functi
4、ons, is not intended to require changes to presently in-stalled devices or existing software.Approval of an American National Standard requires review by ANSI that therequirements for due process, consensus, and other criteria for approval havebeen met by the standards developer.Consensus is establi
5、shed when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. Substantial agreement means much more thana simple majority, but not necessarily unanimity. Consensus requires that allviews and objections be consid
6、ered, and that a concerted effort be madetowards their resolution.The use of American National Standards is completely voluntary; theirexistence does not in any respect preclude anyone, whether he has approvedthe standards or not, from manufacturing, marketing, purchasing, or usingproducts, processe
7、s, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any American NationalStandard. Moreover, no person shall have the right or authority to issue aninterpretation of an American Na
8、tional Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titlepage of this standard.CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The proc
9、edures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards mayreceive current information on all standards by calling or writing the AmericanNational Standards Institute.America
10、n National StandardPublished byAmerican National Standards Institute, Inc.11 West 42nd Street, New York, NY 10036Copyright 1999 by Information Technology Industry Council (ITI)All rights reserved.No part of this publication may be reproduced in anyform, in an electronic retrieval system or otherwise
11、,without prior written permission of ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of AmericaCAUTION: The developers of this standard have requested that holders of patents that may be re-quired for the implementation of the standard disclose such patents to the publish
12、er. However, nei-ther the developers nor the publisher have undertaken a patent search in order to identify which, ifany, patents may apply to this standard. As of the date of publication of this standard, followingcalls for the identification of patents that may be required for the implementation o
13、f the standard,notice of one or more such claims has been received. By publication of this standard, no positionis taken with respect to the validity of this claim or of any rights in connection therewith. The knownpatent holder(s) has (have), however, filed a statement of willingness to grant a lic
14、ense underthese rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to ob-tain such a license. Details may be obtained from the publisher. No further patent search is con-ducted by the developer or publisher in respect to any standard it processes. No representatio
15、n ismade or implied that this is the only license that may be required to avoid infringement in the use ofthis standard.iContentsPageForeword vIntroduction vii1 Scope 12 Normative references . 22.1 Approved references 22.2 References under development 22.3 Other references. 23 Definitions, abbreviat
16、ions, and conventions . 33.1 Definitions and abbreviations 33.2 Conventions 54 Interface physical and electrical requirements 94.1 Cable configuration. 94.2 I/O cable . 104.3 Electrical characteristics . 105 Interface signal assignments and descriptions . 135.1 Signal summary 135.2 Signal descriptio
17、ns 146 General operational requirements 196.1 Command delivery 196.2 Register delivered data transfer command sector addressing . 196.3 General feature set . 216.4 Ultra DMA feature set . 226.5 PACKET Command feature set 246.6 Overlapped feature set . 256.7 Queued feature set . 266.8 Power Managemen
18、t feature set 276.9 Advanced Power Management feature set. 296.10 Security Mode feature set. 306.11 Self-monitoring, analysis, and reporting technology feature set . 346.12 Host Protected Area feature set . 356.13 CFA feature set. 366.14 Removable Media Status Notification and Removable Media featur
19、e sets 377 Interface register definitions and descriptions 397.1 Device addressing considerations 397.2 I/O register descriptions 397.3 Alternate Status register . 417.4 Command register 417.5 Cylinder High register . 427.6 Cylinder Low register 427.7 Data register . 437.8 Data port . 437.9 Device C
20、ontrol register . 44iiPage7.10 Device/Head register 457.11 Error register. 467.12 Features register. 467.13 Sector Count register 477.14 Sector Number register. 477.15 Status register. 488 Command descriptions. 528.1 CFA ERASE SECTORS . 548.2 CFA REQUEST EXTENDED ERROR CODE 568.3 CFA TRANSLATE SECTO
21、R 598.4 CFA WRITE MULTIPLE WITHOUT ERASE 618.5 CFA WRITE SECTORS WITHOUT ERASE. 638.6 CHECK POWER MODE. 658.7 DEVICE RESET . 678.8 DOWNLOAD MICROCODE . 698.9 EXECUTE DEVICE DIAGNOSTIC. 718.10 FLUSH CACHE 738.11 GET MEDIA STATUS. 758.12 IDENTIFY DEVICE. 778.13 IDENTIFY PACKET DEVICE 938.14 IDLE 1038.
22、15 IDLE IMMEDIATE. 1068.16 INITIALIZE DEVICE PARAMETERS 1088.17 MEDIA EJECT 1118.18 MEDIA LOCK 1138.19 MEDIA UNLOCK 1158.20 NOP 1178.21 PACKET . 1198.22 READ BUFFER 1248.23 READ DMA. 1268.24 READ DMA QUEUED 1298.25 READ MULTIPLE . 1338.26 READ NATIVE MAX ADDRESS. 1368.27 READ SECTOR(S). 1388.28 READ
23、 VERIFY SECTOR(S). 1418.29 SECURITY DISABLE PASSWORD . 1448.30 SECURITY ERASE PREPARE 1468.31 SECURITY ERASE UNIT. 1488.32 SECURITY FREEZE LOCK 1518.33 SECURITY SET PASSWORD 1538.34 SECURITY UNLOCK 1558.35 SEEK 1578.36 SERVICE 1608.37 SET FEATURES. 1618.38 SET MAX ADDRESS 1668.39 SET MULTIPLE MODE 1
24、698.40 SLEEP 1718.41 SMART . 1738.42 STANDBY. 1918.43 STANDBY IMMEDIATE 1938.44 WRITE BUFFER. 195iiiPage8.45 WRITE DMA 1978.46 WRITE DMA QUEUED . 2008.47 WRITE MULTIPLE 2048.48 WRITE SECTOR(S) 2079 Protocol. 2109.1 Signature and persistence 2109.2 Power on and hardware resets . 2119.3 Software reset
25、. 2159.4 DEVICE RESET protocol 2199.5 EXECUTE DEVICE DIAGNOSTIC protocol 2199.6 Device selection protocol 2239.7 PIO data in command protocol 2249.8 PIO data out command protocol . 2279.9 Non-data command protocol. 2319.10 DMA command protocol 2339.11 PACKET command protocol . 2359.12 READ/WRITE DMA
26、 QUEUED command protocol 2499.13 Ultra DMA data in commands . 2539.14 Ultra DMA data out commands. 2559.15 Ultra DMA CRC rules 2589.16 Single device configurations . 26010 Timing . 26110.1 Deskewing. 26110.2 Transfer timing 261Tables1 Byte order 82 DC characteristics. 103 AC characteristics . 104 Dr
27、iver types and required termination. 115 Typical series termination for Ultra DMA. 126 Interface signal name assignments. 137 Security mode command actions 338 Extended error codes 579 CFA TRANSLATE SECTOR information 6010 Diagnostic codes. 7211 IDENTIFY DEVICE information. 7912 Minor revision numbe
28、r. 8813 IDENTIFY PACKET DEVICE information . 9514 Automatic standby timer periods. 10315 Security password content 14516 SECURITY ERASE UNIT password. 150ivPage17 SECURITY SET PASSWORD data content. 15418 Identifier and security level bit interaction. 15419 SET FEATURES register definitions 16320 Tr
29、ansfer/mode values. 16421 Advanced power management levels. 16422 SMART Feature register values . 17323 Device SMART data structure 18524 Off-line data collection status byte values 18525 BSY and DRDY timing for power on and hardware resets . 21526 BSY and DRDY timing for software reset . 21927 BSY
30、and DRDY timing for diagnostic command. 22228 Equations for parallel generation of a CRC polynomial 25929 Register transfer to/from device 26330 PIO data transfer to/from device. 26531 Multiword DMA data transfer 26732 Ultra DMA data burst timing requirements 269Figures1 Interface cabling diagram .
31、92 Ultra DMA termination with pull-up or pull-down. 123 PDIAG- example using an 80-conductor cable assembly 164 Cable select example . 175 Alternate cable select example. 186 Power management modes 297 Security mode flow . 328 BSY and DRDY timing for power on and hardware resets . 2149 BSY and DRDY
32、timing for software reset . 21810 BSY and DRDY timing for diagnostic command. 22211 Device selection protocol 22312 PIO data in command protocol . 22413 PIO data out command protocol. 22714 Non-data command protocol 23215 DMA command protocol . 23316 PACKET non-data and PIO data command protocol . 2
33、3517 PACKET DMA command protocol 24218 READ/WRITE DMA QUEUED command protocol . 249vPage19 Example parallel CRC generator 25920 Register transfer to/from device 26221 PIO data transfer to/from device . 26422 Multiword DMA data transfers. 26623 Initiating an Ultra DMA data in burst . 26824 Sustained
34、Ultra DMA data in burst 27125 Host pausing an Ultra DMA data in burst 27226 Device terminating an Ultra DMA data in burst. 27327 Host terminating an Ultra DMA data in burst. 27428 Initiating an Ultra DMA data out burst . 27529 Sustained Ultra DMA data out burst 27630 Device pausing an Ultra DMA data
35、 out burst 27731 Host terminating an Ultra DMA data out burst 27832 Device terminating an Ultra DMA data out burst. 279AnnexesA Connectors 280B Identify device data for devices with more than 1024 logical cylinders. 290C Signal integrity. 293D Bibliography 317E ATA command set summary. 318F Command
36、packet format example 323viForeword (This foreword is not part of American National Standard NCITS 317-1998.)This AT Attachment with Packet Interface Extension (ATA/ATAPI-4) standard is de-signed to maintain a high degree of compatibility with the AT Attachment-3 Interface(ATA-3) standard and the pa
37、cket command feature set implemented by devices com-monly known as ATAPI devices while providing the advantages of additional featuresand functions.This standard was developed by the ATA ad hoc working group of Accredited Stan-dards Committee NCITS during 1995-97. The standards approval process star
38、ted in1997. This document includes six annexes. Annex A is normative and is consideredpart of the standard; all other annexes are informative and are not considered part ofthe standard.Requests for interpretation, suggestions for improvement and addenda, or defect re-ports are welcome. They should b
39、e sent to the NCITS Secretariat, Information Tech-nology Industry Council, 1250 Eye Street, NW, Suite 200, Washington, DC 20005-3922.This standard was processed and approved for submittal to ANSI by NCITS. Com-mittee approval of the standard does not necessarily imply that all committee mem-bers vot
40、ed for its approval. At the time it approved this standard, NCITS had thefollowing members:Karen Higginbottom, Chair(Vacant), Vice-ChairMonica Vago, SecretaryOrganization Represented Name of RepresentativeAMP, Inc. John HillCharles Brill (Alt.)Apple Computer, Inc. David Michael Jerry Kellenbenz (Alt
41、.)AT covering the inter-face cabling requirements of the interface and DC cables and connectors. Clause 5 contains the signal descriptions of the AT Attachment Interface.Clause 6 describes the general operating requirements of the AT Attachment In-terface.Clause 7 contains descriptions of the regist
42、ers of the AT Attachment Interface.Clause 8 contains descriptions of the commands of the AT Attachment Interface.Clause 9 contains the protocol of the AT Attachment Interface.Clause 10 contains the interface timing diagrams.AMERICAN NATIONAL STANDARD ANSI NCITS 317-1998American National Standardfor
43、Information Technology AT Attachment with Packet Interface Extension (ATA/ATAPI-4)Page 11 ScopeThis standard specifies the AT Attachment Interface between host systems and storage devices. It provides acommon attachment interface for systems manufacturers, system integrators, software suppliers, and
44、suppliers of intelligent storage devices.The application environment for the AT Attachment Interface is any host system that has storage devicescontained within the processor enclosure.This standard defines the connectors and cables for physical interconnection between host and storagedevice, as wel
45、l as, the electrical and logical characteristics of the interconnecting signals. It also defines theoperational registers within the storage device, and the commands and protocols for the operation of thestorage device.This standard maintains a high degree of compatibility with the AT Attachment-3 I
46、nterface standard (ATA-3),X3.298-1997, and while providing additional functions, is not intended to require changes to presentlyinstalled devices or existing software.ANSI NCITS 317-1998Page 22 Normative referencesThe following standards contain provisions that, through reference in the text, consti
47、tute provisions of thisstandard. At the time of publication, the editions indicated were valid. All standards are subject to revision,and parties to agreements based on this standard are encouraged to investigate the possibility of applying themost recent editions of the standards listed below.Copie
48、s of the following documents can be obtained from ANSI: Approved ANSI standards, approved anddraft international and regional standards (ISO, IEC, CEN/CENELEC, ITUT), and approved and draft foreignstandards (including BSI, JIS, and DIN). For further information, contact ANSI Customer Service Departm
49、entat 212-642-4900 (phone), 212-302-1286 (fax) or via the World Wide Web at http:/www.ansi.org.Additional availability contact information is provided below as needed.2.1 Approved referencesANSI X3.301-1997, SCSI-3 Primary Commands (SPC)1)ANSI X3.304-1997, SCSI-3 Multimedia Commands (MMC)1)2.2 References under developmentAt the time of publication, the following referenced standards were still under development. For information onthe current status of the document, or regarding availability, contact the relevant standards body or otherorganization as indicated.Multimedia Commands - 2
