T13/1532D Volume 3 Revision 0 Foreword (This foreward is not part of American National Standard NCITS***-***.) This AT Attachment with Packet Interface-7(ATA/ATAPI-7)standard is designed to maintain a high degree of compatibility with the AT Attachment with Packet Interface-6(ATA/ATAPI-6)standard.This standard is published in three volumes. This standard was developed by the ATA ad hoc working group of Accredited Standards Committee NCITS during 2001 and 200x.The standards approval process started in 200x.This document includes annexes that are informative and are not considered part of the standard. Requests for interpretation,suggestions for improvement and addenda,or defect reports are welcome.They should be sent to the NCITS Secretariat,Information Technology Industry Council,1250 Eye Street,NW,Suite 200,Washington,DC 20005-3922. This standard was processed and approved for submittal to ANSI by Accredited Standards Committee on Information Processing Systems,NCITS.Committee approval of the standard does not necessarily imply that all committee members voted for approval.At the time it approved this standard,the NCITS Committee had the following members: Chair Vice-Chair Secretary Organization Represented................... ......Name of Representative Technical Committee T13 on ATA Interfaces,that reviewed this standard,had the following members: Pete McLean,Chairman Dan Colegrove,Vice-Chairman Mark Evans,Secretary Technical Committee T13 on ATA Interfaces,that developed this standard,had the following additional participants: Page v
T13/1532D Volume 3 Revision 0 Page v Foreword (This foreward is not part of American National Standard NCITS ***-****.) This AT Attachment with Packet Interface - 7 (ATA/ATAPI-7) standard is designed to maintain a high degree of compatibility with the AT Attachment with Packet Interface – 6 (ATA/ATAPI-6) standard. This standard is published in three volumes. This standard was developed by the ATA ad hoc working group of Accredited Standards Committee NCITS during 2001 and 200x. The standards approval process started in 200x. This document includes annexes that are informative and are not considered part of the standard. Requests for interpretation, suggestions for improvement and addenda, or defect reports are welcome. They should be sent to the NCITS Secretariat, Information Technology Industry Council, 1250 Eye Street, NW, Suite 200, Washington, DC 20005-3922. This standard was processed and approved for submittal to ANSI by Accredited Standards Committee on Information Processing Systems, NCITS. Committee approval of the standard does not necessarily imply that all committee members voted for approval. At the time it approved this standard, the NCITS Committee had the following members: , Chair , Vice-Chair , Secretary Organization Represented ......................................................................Name of Representative Technical Committee T13 on ATA Interfaces, that reviewed this standard, had the following members: Pete McLean, Chairman Dan Colegrove, Vice-Chairman Mark Evans, Secretary Technical Committee T13 on ATA Interfaces, that developed this standard, had the following additional participants:
T13/1532D Volume 3 Revision 0 Introduction This standard encompasses the following: Volume 1 Clause 1 describes the scope. Clause 2 provides normative references for the entire standard. Clause 3 provides definitions,abbreviations.and conventions used within the entire standard. Volume 2 Clause 1 describes the scope. Clause 2 describes the general operating requirements of the command layer. Clause 3 contains descriptions of the commands. Volume 3 Clause 1 describes the scope. Clause 2 contains the electrical and mechanical characteristics. Clause 3 contains the signal descriptions. Clause 4 describes the general operating requirements of the physical,data link,and transport layers. Clause 5 contains descriptions of the registers Clause 6 contains the transport protocols. Clause 7 contains the interface timing diagrams. Page vi
T13/1532D Volume 3 Revision 0 Page vi Introduction This standard encompasses the following: Volume 1 Clause 1 describes the scope. Clause 2 provides normative references for the entire standard. Clause 3 provides definitions, abbreviations, and conventions used within the entire standard. Volume 2 Clause 1 describes the scope. Clause 2 describes the general operating requirements of the command layer. Clause 3 contains descriptions of the commands. Volume 3 Clause 1 describes the scope. Clause 2 contains the electrical and mechanical characteristics. Clause 3 contains the signal descriptions. Clause 4 describes the general operating requirements of the physical, data link, and transport layers. Clause 5 contains descriptions of the registers. Clause 6 contains the transport protocols. Clause 7 contains the interface timing diagrams
T13/1532D Volume 3 Revision 0 AMERICAN NATIONAL STANDARD NCITS ***-nnnn American National Standard for Information Systems- Information Technology- AT Attachment with Packet Interface-7-Volume 3- (ATA/ATAPI-7 V3) 1 Scope 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. The application environment for the AT Attachment Interface is any host system that has storage devices contained within the processor enclosure. Volume 1 describes the references,definitions,abbreviations,and conventions applicable to the entire standard.Volume 2 defines the register delivered commands used by devices implementing the standard. Volume 3 defines the connectors and cables for physical interconnection between host and storage device,the electrical and logical characteristics of the interconnecting signals,the operational registers within the storage device,and the protocols for the transporting commands,data,and status over the interface.For devices implementing the PACKET command feature set,additional command layer standards are listed in Table 1 and described in Volume 1,clause 2.Figure 1 shows the relationship of these documents. References Register delivered command set Packet delivered command sets definitions. Volume 2 See table 1 abbreviations, and conventions. Transport protocols Volume 1 Volume 3 Physical interconnect Volume 3 Figure 1-ATA document relationships Page 1
T13/1532D Volume 3 Revision 0 Page 1 AMERICAN NATIONAL STANDARD NCITS ***-nnnn American National Standard for Information Systems Information Technology AT Attachment with Packet Interface – 7 − Volume 3 (ATA/ATAPI-7 V3) 1 Scope 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. The application environment for the AT Attachment Interface is any host system that has storage devices contained within the processor enclosure. Volume 1 describes the references, definitions, abbreviations, and conventions applicable to the entire standard. Volume 2 defines the register delivered commands used by devices implementing the standard. Volume 3 defines the connectors and cables for physical interconnection between host and storage device, the electrical and logical characteristics of the interconnecting signals, the operational registers within the storage device, and the protocols for the transporting commands, data, and status over the interface. For devices implementing the PACKET command feature set, additional command layer standards are listed in Table 1 and described in Volume 1, clause 2. Figure 1 shows the relationship of these documents. Register delivered command set Volume 2 Packet delivered command sets See table 1 Transport protocols Volume 3 Physical interconnect Volume 3 References, definitions, abbreviations, and conventions. Volume 1 Figure 1 − ATA document relationships
T13/1532D Volume 3 Revision 0 Standard SCSI Primary Commands(SPC) Multimedia Commands(MMC) Multimedia Commands-2(MMC-2) SCSI Primary Commands-2(SPC-2) SCSI Primary Commands-3(SPC-3) Multimedia Commands-3(MMC-3) ATAPI for Romovable Media(SFF80701) ATA Packet Interface (ATAPI)for Streaming Tape QIC-157 revison D Table 1-PACKET delivered command sets This standard maintains a high degree of compatibility with the AT Attachment with Packet Interface-6 standard(ATA/ATAPI-6),NCITS nnn-200x,and while providing additional functions,is not intended to require changes to presently installed devices or existing software. Page 2
T13/1532D Volume 3 Revision 0 Page 2 Standard SCSI Primary Commands (SPC) Multimedia Commands (MMC) Multimedia Commands – 2 (MMC-2) SCSI Primary Commands – 2 (SPC-2) SCSI Primary Commands – 3 (SPC-3) Multimedia Commands – 3 (MMC-3) ATAPI for Romovable Media (SFF8070I) ATA Packet Interface (ATAPI) for Streaming Tape QIC-157 revison D Table 1 − PACKET delivered command sets This standard maintains a high degree of compatibility with the AT Attachment with Packet Interface – 6 standard (ATA/ATAPI-6), NCITS nnn-200x, and while providing additional functions, is not intended to require changes to presently installed devices or existing software
T13/1532D Volume 3 Revision 0 2 Interface physical and electrical requirements 2.1 Cable configuration This standard defines an interface containing a single host or host adapter and one or two devices.One device is configured as Device 0 and the other device as Device 1. The designation of a device as Device 0 or Device 1 may be made in a number of ways including but not limited to: a switch or a jumper on the device; use of the Cable Select(CSEL)pin. The host shall be placed at one end of the cable.It is recommended that for a single device configuration the device be placed at the opposite end of the cable from the host.If a single device configuration is implemented with the device not at the end of the cable,a cable stub results that may cause degradation of signals.Single device configurations with the device not at the end of the cable shall not be used with Ultra DMA modes. 2.2 Electrical characteristics Table 2 defines the DC characteristics of the interface signals.Table 3 defines the AC characteristics.These characteristics apply to both host and device unless otherwise specified. Page 3
T13/1532D Volume 3 Revision 0 Page 3 2 Interface physical and electrical requirements 2.1 Cable configuration This standard defines an interface containing a single host or host adapter and one or two devices. One device is configured as Device 0 and the other device as Device 1. The designation of a device as Device 0 or Device 1 may be made in a number of ways including but not limited to: − a switch or a jumper on the device; − use of the Cable Select (CSEL) pin. The host shall be placed at one end of the cable. It is recommended that for a single device configuration the device be placed at the opposite end of the cable from the host. If a single device configuration is implemented with the device not at the end of the cable, a cable stub results that may cause degradation of signals. Single device configurations with the device not at the end of the cable shall not be used with Ultra DMA modes. 2.2 Electrical characteristics Table 2 defines the DC characteristics of the interface signals. Table 3 defines the AC characteristics. These characteristics apply to both host and device unless otherwise specified