Seagate 100529372, ST3250312CS, ST3250412CS, ST3500414CS, ST3320413CS About the Serial ATA interface

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1.1About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include:

•Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump- ers or other configuration options.

•Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

•Scalability to higher performance levels.

In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disk drive in your current system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disk drive in a point-to-point configuration with the Serial ATA host adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0 (master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA environment.

The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers, resets, and interrupts are all emulated.

The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device regis- ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi- tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial ATA Revision 2.6”. The specification can be downloaded from www.sata-io.org.

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Video 3.5 HDD Product Manual, Rev. J

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Contents Video 3.5 HDD Revision history Revision Date Sheets affected or commentsPipeline HD.2 Series Sata Product Manual, Rev. J Pipeline HD.2 Series Sata Product Manual, Rev. J Contents Pipeline HD.2 Series Sata Product Manual, Rev. J Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 1000GB models Drive specification ST31000424CS ST31000322CSVideo 3.5 HDD Product Manual, Rev. J Drive specifications summary for 500 and 320GB models Video 3.5 HDD Product Manual, Rev. J Drive specifications summary for 250 and 160GB models Drive specification ST3250412CS ST3250312CS ST3160316CSVideo 3.5 HDD Product Manual, Rev. J Default logical geometry LBA modeFormatted capacity Recording and interface technologyStart/stop times Physical characteristicsSeek time Power specifications Voltage tolerance Typical current profilesConducted noise Power management modes Active modeIdle mode Sleep modeEnvironmental specifications Shock Operating shockNon-operating shock VibrationDrive A-weighted Sound Power Levels SWL, BA Acoustics emissionsElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification ReliabilityAgency certification Annualized Failure Rate AFRFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions for 1000GB models Drive mountingMounting dimensions for 500, 320, 250 and 160GB models Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F3H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordIdle Immediate command with Iunload faeture is supported Set Features command Set Features command valuesCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.R.T. commands Seagate Technology support services Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index RRL Page Video 3.5 HDD Product Manual, Rev. J Page Seagate Technology LLC
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