Samsung M8 manual Sata II Feature SET, Device Activity Signal, Staggered Spin-up Disable Control

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CHAPTER 7 SATA II FEATURE SET

This section describes the SATA II feature set supported in the Samsung Spinpoint M8 drive.

7.1Device Activity Signal

Spinpoint M8 implemented the Device Activity Signal on the SATA power connector pin-11. The implementation is based on the SATA II specification. This activity signal is used for indicating the drive activities, including the queued and non-queued commands. For the host can use this signal to indicate the command activity.

7.2Staggered Spin-up Disable Control

Spinpoint M8 implemented the staggered spin-up disable control by using the SATA power connector pin-11. This pin is multiplexed with the Device Activity Signal support. On power up this pin is used for the spin-up control. After the device is connected with the host, this pin is used for the Device Activity.

Before the device spins up its media, devices that support staggered spin-up disable control shall detect whether pin 11 is asserted low by the host. If pin 11 is asserted low the device shall disable staggered spin-up and immediately initiate media spin-up. If pin 11 is not connected in the host (floating), devices that support staggered spin-up disable through pin 11 shall enable staggered spin-up.

7.3Auto-Activate in DMA Setup FIS

Spinpoint M8 implemented the option for the Auto-Activate in DMA Setup FIS. With this feature enabled, the DMA Setup FIS is automatically activated. This automation help improve the efficiency of the DMA data transfer. This feature can be enabled by the SATA Set Feature command.

If the Set Feature is not issued, the DMA Setup FIS is not automatically activated.

7.4Native Command Queuing (NCQ)

Spinpoint M8 supports the NCQ feature of the SATA II command interface. The NCQ feature is unique in the SATA II implementation which helps device improve the system performance. The implementation is fully compliant with the SATA II specification.

The drive implements the NCQ with its proprietary hardware and firmware to enhance the command performance. The NCQ hardware automatically receives the NCQ commands from the host. The hardware verifies the duplication of the tag number and report tag duplicated error immediately. The automation of the hardware and firmware handles the NCQ command from its reception to the reordering and command execution. The drive intelligent firmware is capable of sorting the physical address of the incoming commands and decides the execution order for the best performance.

Spinpoint M8 Product Manual REV 2.3

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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 User Definition ScopeManual Organization Reference SataIntroduction DescriptionKey Features Hardware Requirements Standards and RegulationsSpecification Summary SpecificationsSpecifications Spindle speed RPM RPM ClassLogical Configurations Physical SpecificationsPhysical Specifications Physical dimensionsPerformance Specifications Power consumption Power consumptionPower Requirements RatedEnvironmental Specifications Environmental Specifications15.0 Reliability Specifications Space Requirements InstallationMounting Unpacking InstructionsOrientation Mounting DimensionsMounting-Screw Clearance ClearanceVentilation Cable ConnectorsSata Connectivity 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 InstallationBase Casting Assembly Head / Disk Assembly HDADC Spindle Motor Assembly Disk Drive OperationCoverAssembly Head Stack Assembly Disk Stack AssemblyVoice Coil Motor and Actuator Latch Assemblies Air Filtration SystemDrive Electronics Digital Signal Process and Interface ControllerDisk Controller DDR Buffer Control Block Host Interface Control BlockDisk Ldpc Control Block Disk Control BlockFrequency Synthesizer Read/Write IC Power ManagementTime Base Generator Automatic Gain ControlAnalog to Digital Converter ADC and FIR Analog Anti-Aliasing Low Pass FilterRead and Write Operations Servo SystemRead Channel Write Channel Firmware FeaturesRead Caching Write Caching Automatic Defect Allocation Defect ManagementMulti-burst ECC Correction SmartSata Terminology Sata II InterfaceSpinpoint M8 Product Manual REV Signal Descriptions Physical Interface Signal Summary2 I/O Register Address When read When writtenControl Block Register Descriptions RegistersFeatures Register and Feature Extended Register Ex F1h Command Block Register DescriptionsError Register Ex F1h Device Control Register ex F6hDevice Register Ex F6h Command Register Ex F7hStatus Register Ex F7h Device Activity Signal Sata II Feature SETStaggered Spin-up Disable Control Auto-Activate in DMA Setup FISPhy. Event Counters Sata Power Management Software Settings PreservationCommand Table ATA Command DescriptionsCommand Code Parameters Check Power Mode E5h Command DescriptionsDevice Configuration Overlay Feature Register Values Device Configuration Overlay B1hCommand Download Micro Code 92hDevice Configuration Identify data structure Word Content Diagnostic Codes Execute Device Diagnostics 90hFlush Cache E7h, EAh extended Format Track 50hIdentify 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 E3h Automatic Standby Timer PeriodsIdle Immediate E1h NOP 00h Initialize Device Parameters 91hRead Buffer E4h Read DMA C8h, 25h extendedRead Log Extended 2Fh Read Multiple Command C4h, 29h extendedRead Long 22h Read Sectors 20h, 24h extended Read Native Max Address F8h, 27h extendedRead Verify Sectors 40h, 41h extended Recalibrate 10h Security Disable Password F6hSecurity Erase Prepare F3h Security Erase Unit F4hSecurity Erase Unit Password Word Content Security Set Password F1hSecurity Set Password data content Security Freeze Lock F5hIdentifier Level Command result Set Features EFhSecurity Unlock F2h Seek 7xh12 Transfer Mode Values 11 Set Features Register Definitions13 Set Max Feature Register Values Set Multiple Mode C6hSet Max Address F9h, 37h extended Sleep E6hSmart disable operations D9h 14 Smart Feature Registers ValuesSmart enable/disable attribute auto-save D2h Smart B0hSmart 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 return status DAh Smart read log sector D5hSmart write log sector D6h Write Buffer E8h Standby Immediate E0hWrite DMA CAh, 35h extended Write Fpdma Queued 61hWrite Long 32h Write Multiple Command C5h, 39h extendedWrite Sectors 30h, 34h extended Spinpoint M8 Product Manual REV Maintenance Precautions MaintenanceGeneral Information HDD handling guide -Please handle HDD by side surfaces HDD handling guide Prevent Shocks Service and Repair
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