Seagate ST31000340SV, ST3250310SV, ST3750330SV, ST3500320SV manual 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 disc drive in your current system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc 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: High Speed Serialized AT Attachment” specification. The specification can be downloaded from www.serialata.org.

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SV35.3 Series Serial ATA Product Manual, Rev. B

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Contents SV35.3 Series Serial ATA ST31000340SV ST3750330SV ST3500320SV ST3250310SVRevision history Revision DateContents SV35.3 Series Serial ATA Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specification ST31000340SV ST3750330SV ST3500320SV System will display the warranty information for your drive Drive specifications summary for 250 Gbyte models Drive specification ST3250310SVTem will display the warranty information for your drive Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per trackPhysical characteristics Drive specificationRecording and interface technology Models ST31000340SV, ST3750330SV & ST3500320SV ST3250310SVSeek time Start/stop timesTypical seek times msec Read Write TB models GB modelsPower specifications DC power requirements Conducted noise Voltage tolerancePower-management modes Active modeIdle mode Sleep modeEnvironmental specifications Shock Operating shockNonoperating shock 4, 3 and 2 disc models Nonoperating shock 1 disc modelsAcoustics Electromagnetic immunityFluid Dynamic Bearing FDB motor acoustics Radio frequency environmentsReliability Agency certification Environmental protection China Restriction of Hazardous Substances RoHS DirectiveCorrosive environment SV35.3 Series Serial ATA Product Manual, Rev. B Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingSV35.3 Series Serial ATA Product Manual, Rev. B Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal PowerPage Command name Command code in hex Supported ATA commandsSupported ATA commands F6H E8H Identify Device command Word Description ValueXxxxH Xx3FH Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesF1 H Code in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands SV35.3 Series Serial ATA Product Manual, Rev. B Technical Support InternetPresales Support Data Recovery Services Call Center Toll-free Direct dialFAX Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page SV35.3 Series Serial ATA Product Manual, Rev. B Page Seagate Technology LLC
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