Samsung M9T manual Software Settings Preservation, Sata Power Management

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7.6Software Settings Preservation

Spinpoint M9T supports SATA II Software Settings Preservation requirements. The settings of the following items will be preserved across device receiving of COMRESET. This will ensure the device operates on the intended settings even if the COMRESET is received. A SATA bus may generates COMRESET on an Asynchronous Signal Loss (ASL) case which may be caused by noise on the bus. The Software Settings Preservation feature can ensure the device continuing its operation on the ASL event.

The settings preserved are as list:

Initialize Device Parameters

Power Management Feature Set

Security Mode State

oSecurity Freeze Lock

oSecurity Unlock

Set Address Max (Ext)

Set Features

oWrite Cache

oSet Transfer Mode o Read Look-Ahead

Set Multiple Mode

7.7SATA Power Management

Spinpoint M9T supports SATA power management from the SATA I and SATA II specifications. The SATA power management is designed to conserve interface power usage when the bus is not active. There are two power management requests: PM Partial and PM Slumber. These two states can be requested by either the host or the device. When entering the Partial state, the device is required to exit to normal state in 10 us, while the exit from Slumber state is limited to 10 ms.

The device will respond to the host PM requests and enter the PM mode when requested. The host may request the PM Partial or PM Slumber at and end of command execution.

The device will also issues PM request when this feature is enabled by the host. The host enables the PM feature by a Set Feature command with proper feature data. After the feature is enabled, the device will make a PM request when entering the Standby or Sleep modes.

Spinpoint M9T Product Manual REV 1.0

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Contents M9T Product Manual Page Table of Contents Iii Read Fpdma Queued 60h Read Log Extended 2Fh Read Long 22h Table of Tables Scope User DefinitionManual Organization Sata ReferenceDescription IntroductionKey Features Standards and Regulations Hardware RequirementsSpecifications Specification SummaryPhysical Specifications Logical ConfigurationsPerformance Specifications Power consumption Power consumptionPower Requirements RatedEnvironmental Specifications Environmental SpecificationsLinear Shock 1/2 sine pulse Rotational ShockReliability Specifications Installation Space RequirementsUnpacking Instructions MountingMounting Dimensions OrientationCable Connectors VentilationSata Connectivity Computer mainboard or Serial ATA host adapter Power ManagementSATA-Bus Interface Connector HDD Power, Sata Interface, and Factory Jumper ConnectorDrive Installation DC Power Connector and SATA-Bus Interface Cable ConnectionsHead / Disk Assembly HDA Base Casting AssemblyDC Spindle Motor Assembly Disk Drive OperationExploded Mechanical View Disk Stack Assembly Head Stack AssemblyVoice Coil Motor and Actuator Latch Assemblies Air Filtration SystemDigital Signal Process and Interface Controller Drive ElectronicsDisk Controller DDR Host Interface Control Block Buffer Control BlockDisk Control Block Disk Ldpc Control BlockFrequency Synthesizer Power Management Read/Write ICTime Base Generator Automatic Gain ControlAnalog Anti-Aliasing Low Pass Filter Analog to Digital Converter ADC and FIRServo System Read and Write OperationsRead Channel Firmware Features Write ChannelRead Caching Write Caching Defect Management Automatic Defect AllocationSmart 6 APMSata II Interface Sata TerminologySpinpoint M9T Product Manual REV Physical Interface Signal Summary Signal DescriptionsWhen read When written 2 I/O Register AddressControl Block Register Descriptions RegistersCommand Block Register Descriptions Command Register Ex F7h Device Register Ex F6hStatus Register Ex F7h Sata II Feature SET Device Activity SignalStaggered Spin-up Disable Control Auto-Activate in DMA Setup FISPhy Event Counters Software Settings Preservation Sata Power ManagementATA Command Descriptions Command TableCommand Code Parameters Smart Command Descriptions Check Power Mode E5hDevice Configuration Overlay B1h Download Micro Code 92hDevice Configuration Identify data structure Word Content Execute Device Diagnostics 90h Diagnostic CodesFlush Cache E7h, EAh extended Format Track 50hContent Description Identify Device information=the fields reported in word 88 are valid EXT =Media Card Pass Through command feature set supported Word Content Description WWNAutomatic Standby Timer Periods Idle E3hIdle Immediate E1h Initialize Device Parameters 91h NOP 00hRead Buffer E4h Read DMA C8h, 25h extendedRead Multiple Command C4h, 29h extended Read Log Extended 2FhRead Long 22h Read Native Max Address F8h, 27h extended Read Sectors 20h, 24h extendedRead Verify Sectors 40h, 41h extended Security Disable Password F6h Recalibrate 10hSecurity Erase Prepare F3h Security Erase Unit F4hSecurity Set Password F1h Security Erase Unit Password Word ContentSecurity Set Password data content Security Freeze Lock F5hSet Features EFh Security Unlock F2hSeek 7xh 11 Set Features Register Definitions 12 Transfer Mode ValuesSet Multiple Mode C6h 13 Set Max Feature Register ValuesSet Max Address F9h, 37h extended Sleep E6h14 Smart Feature Registers Values Smart disable operations D9hSmart enable/disable attribute auto-save D2h Smart B0hSmart enable operations D8h Smart execute off-line immediate D4hSmart read data D0h 15 Device Smart Data StructureByte Bit Name Description 16 Smart Attribute Status Flags17 Smart Attribute Data List 18 Off-line Data Collection Status ValuesSelf-test execution status byte 19 Self-test Execution Status ValuesSmart read log sector D5h Smart return status DAhSmart write log sector D6h Standby Immediate E0h Write Buffer E8hWrite DMA CAh, 35h extended Write Fpdma Queued 61hWrite Multiple Command C5h, 39h extended Write Sectors 30h, 34h extendedSpinpoint M9T Product Manual REV Maintenance Maintenance PrecautionsGeneral Information HDD handling guide -Please handle HDD by side surfaces Service and Repair HDD handling guide Prevent Shocks