Samsung M8 manual Smart B0h, Smart Feature Registers Values, Smart disable operations D9h

Page 71

period programmed into the Standby Timer.

8.2.34 SMART (B0h)

Individual SMART commands are identified by the value placed in the Feature resister. Below depicts these Feature register values.

Table 8-14 SMART Feature Registers Values

Feature Value

Command

D0h

SMART READ DATA

D1h

Obsolete (SMART Read Threshold)

D2h

SMART ENABLE/DISABLE ATTRIBUTE AUTOSAVE

D3h

Obsolete (SMART Save Attribute Value)

D4h

SMART EXECUTE OFF-LINE IMMEDIATE

D5h

SMART READ LOG SECTOR

D6h

SMART WRITE LOG SECTOR

D7h

Obsolete

D8h

SMART ENABLE OPERATIONS

D9h

SMART DISABLE OPERATIONS

DAh

SMART RETURN STATUS

DBh

Obsolete (Enable/Disable Auto Offline Scan)

DCh-DDh

Reserved

DEh

Reserved (Initialize SMART Variables)

DFh

Reserved

8.2.34.1Smart disable operations (D9h)

This command disables all SMART capabilities within the device including any timer and event count functions related to this feature. After receipt of this command the device shall disable all SMART operations. SMART data shall no longer be monitored or saved by the device. The state of SMART (either enabled or disabled) shall be preserved by the device across power cycles.

After receipt of this command by the device, all other SMART commands (including SMART DISABLE OPERATIONS commands), with the exception of SMART ENABLE OPERATIONS, are disabled and invalid and shall be command aborted by the device.

8.2.34.2Smart enable/disable attribute auto-save (D2h)

This command enables and disables the optional attribute auto-save feature of the device. Depending upon the implementation, this command may either allow the device, after some vendor specified event, to automatically save its updated attribute values to non-volatile memory; or this command may cause the auto- save feature to be disabled. The state of the attribute auto-save feature (either enabled or disabled), shall be preserved by the device across power cycles.

A value of zero written by the host into the device’s Sector Count register before issuing this command shall cause this feature to be disabled. Disabling this feature does not preclude the device from saving SMART data to non-volatile memory during some other normal operation such as during a power-on sequence or during an error recovery sequence.

Spinpoint M8 Product Manual REV 2.3

65

Page 70 Page 72
Image 71
Page 70 Page 72
Contents M8 Product Manual Page Table of Contents Servo System Read and Write Operations Read Fpdma Queued 60h Read Log Extended 2Fh Read Long 22h Table of Tables Manual Organization ScopeUser Definition Reference SataIntroduction DescriptionKey Features Hardware Requirements Standards and RegulationsSpindle speed RPM RPM Class SpecificationsSpecification Summary SpecificationsPhysical dimensions Physical SpecificationsLogical Configurations Physical SpecificationsPerformance Specifications Rated Power consumptionPower consumption Power RequirementsEnvironmental Specifications Environmental Specifications15.0 Reliability Specifications Space Requirements InstallationMounting Unpacking InstructionsOrientation Mounting DimensionsMounting-Screw Clearance ClearanceSata Connectivity Cable ConnectorsVentilation Serial ATA Management PowerHDD Power, Sata Interface, and Factory Jumper Connector Pin Locations on the Drive Pcba DC Power Connector and SATA-Bus Interface Cable Connections Drive InstallationDisk Drive Operation Head / Disk Assembly HDABase Casting Assembly DC Spindle Motor AssemblyCoverAssembly Air Filtration System Disk Stack AssemblyHead Stack Assembly Voice Coil Motor and Actuator Latch AssembliesDisk Controller Digital Signal Process and Interface ControllerDrive Electronics DDR Buffer Control Block Host Interface Control BlockFrequency Synthesizer Disk Control BlockDisk Ldpc Control Block Automatic Gain Control Power ManagementRead/Write IC Time Base GeneratorAnalog to Digital Converter ADC and FIR Analog Anti-Aliasing Low Pass FilterRead Channel Servo SystemRead and Write Operations Read Caching Firmware FeaturesWrite Channel Write Caching Smart Defect ManagementAutomatic Defect Allocation Multi-burst ECC CorrectionSata Terminology Sata II InterfaceSpinpoint M8 Product Manual REV Signal Descriptions Physical Interface Signal SummaryRegisters When read When written2 I/O Register Address Control Block Register DescriptionsDevice Control Register ex F6h Command Block Register DescriptionsFeatures Register and Feature Extended Register Ex F1h Error Register Ex F1hDevice Register Ex F6h Command Register Ex F7hStatus Register Ex F7h Auto-Activate in DMA Setup FIS Sata II Feature SETDevice Activity Signal Staggered Spin-up Disable ControlPhy. Event Counters Sata Power Management Software Settings PreservationCommand Code Parameters ATA Command DescriptionsCommand Table Check Power Mode E5h Command DescriptionsDownload Micro Code 92h Device Configuration Overlay B1hDevice Configuration Overlay Feature Register Values CommandDevice Configuration Identify data structure Word Content Format Track 50h Execute Device Diagnostics 90hDiagnostic Codes Flush Cache E7h, EAh extendedIdentify Device information Content Description=the fields reported in word 88 are valid EXT =Media Card Pass Through command feature set supported WWN Word Content DescriptionIdle Immediate E1h Automatic Standby Timer PeriodsIdle E3h Read DMA C8h, 25h extended Initialize Device Parameters 91hNOP 00h Read Buffer E4hRead Long 22h Read Multiple Command C4h, 29h extendedRead Log Extended 2Fh Read Verify Sectors 40h, 41h extended Read Native Max Address F8h, 27h extendedRead Sectors 20h, 24h extended Security Erase Unit F4h Security Disable Password F6hRecalibrate 10h Security Erase Prepare F3hSecurity Freeze Lock F5h Security Set Password F1hSecurity Erase Unit Password Word Content Security Set Password data contentSeek 7xh Set Features EFhIdentifier Level Command result Security Unlock F2h12 Transfer Mode Values 11 Set Features Register DefinitionsSleep E6h Set Multiple Mode C6h13 Set Max Feature Register Values Set Max Address F9h, 37h extendedSmart B0h 14 Smart Feature Registers ValuesSmart disable operations D9h Smart enable/disable attribute auto-save D2hSmart execute off-line immediate D4h Smart enable operations D8h15 Device Smart Data Structure Smart read data D0hData Structure Revision Number 16 Smart Attribute Status Flags Bit Name Description18 Off-line Data Collection Status Values 17 Smart Attribute Data List19 Self-test Execution Status Values Self-test execution status byteSmart write log sector D6h Smart read log sector D5hSmart return status DAh Write Fpdma Queued 61h Standby Immediate E0hWrite Buffer E8h Write DMA CAh, 35h extendedWrite Sectors 30h, 34h extended Write Multiple Command C5h, 39h extendedWrite Long 32h Spinpoint M8 Product Manual REV General Information MaintenanceMaintenance Precautions HDD handling guide -Please handle HDD by side surfaces HDD handling guide Prevent Shocks Service and Repair
Top Page Image Contents