Samsung M8 manual Set Max Address F9h, 37h extended, Set Multiple Mode C6h, Sleep E6h, Standby E2h

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Setting of the UDMA mode will not alter the speed of the SATA interface transfer. SATA transfer speed is depending upon the negotiated interface speed of either Gen II 3.0 Gbps or Gen I 1.5 Gbps. The mode setting in the Set Feature command is for backward compatibility purpose.

8.2.30 Set Max Address (F9h, 37h: extended)

Set Max Address command is for device implement the Host Protected Area feature set. The drive maximum address can be changed according to the command issued from the host. The Set Max command has the following subcommands:

Table 8-13 Set Max Feature Register Values

Feature Value

Command

0

Obsolete

1

SET MAX SET PASSWORD

2

SET MAX LOCK

3

SET MAX UNLOCK

4

SET MAX FREEZE LOCK

05-FFh

Reserved

8.2.31 Set Multiple Mode (C6h)

This command enables the drive to perform Read and Write Multiple operations and establishes the block count for these commands.

The Sector Count register is loaded with the number of sectors per block. Drives support block sizes of 2, 4, 8, and 16 sectors. If the Sector Count register contains a valid value and the block count is supported, the value is loaded for all subsequent Read Multiple and Write Multiple commands and execution of those commands is enabled. If a block count is not supported, an Aborted Command error is posted, and Read Multiple and Write Multiple commands are disabled.

At power-on, or after a hardware reset, the default mode is Read and Write Multiple disabled. And on software reset, the default mode of Read and Write Multiple will not be changed.

8.2.32 Sleep (E6h)

This command is the only way to cause the drive to enter Sleep Mode. The drive is spun down, and when it is stopped, BSY is cleared, an interrupt is generated, and the interface becomes inactive.

The only way to recover from Sleep mode without a reset or power-on is for the host to issue a software reset. A drive shall not power-on in Sleep Mode nor remain in Sleep Mode following a reset sequence. If the drive is already spun down, the spin down sequence is not executed.

8.2.33 Standby (E2h)

This command causes the drive to set BSY, enter the Standby Mode, clear BSY, and assert INTRQ. INTRQ is asserted even though the device may not have fully transitioned to Standby Mode.

If the Sector Count register is non-zero, then the Standby Timer is enabled. The value in the Sector Count register shall be used to determine the time programmed into the Standby Mode.

The value in the Sector Count register when the STANDBY command is issued shall determine the time

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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 Sata ReferenceDescription IntroductionKey Features Standards and Regulations Hardware RequirementsSpecifications SpecificationsSpecification Summary Spindle speed RPM RPM ClassPhysical Specifications Physical SpecificationsLogical Configurations Physical dimensionsPerformance Specifications Power Requirements Power consumptionPower consumption RatedEnvironmental Specifications Environmental Specifications15.0 Reliability Specifications Installation Space RequirementsUnpacking Instructions MountingMounting Dimensions OrientationClearance Mounting-Screw ClearanceVentilation Cable ConnectorsSata Connectivity Serial ATA Power ManagementHDD Power, Sata Interface, and Factory Jumper Connector Pin Locations on the Drive Pcba Drive Installation DC Power Connector and SATA-Bus Interface Cable ConnectionsDC Spindle Motor Assembly Head / Disk Assembly HDABase Casting Assembly Disk Drive OperationCoverAssembly Voice Coil Motor and Actuator Latch Assemblies Disk Stack AssemblyHead Stack Assembly Air Filtration SystemDrive Electronics Digital Signal Process and Interface ControllerDisk Controller DDR Host Interface Control Block Buffer Control BlockDisk Ldpc Control Block Disk Control BlockFrequency Synthesizer Time Base Generator Power ManagementRead/Write IC Automatic Gain ControlAnalog Anti-Aliasing Low Pass Filter Analog to Digital Converter ADC and FIRRead and Write Operations Servo SystemRead Channel Write Channel Firmware FeaturesRead Caching Write Caching Multi-burst ECC Correction Defect ManagementAutomatic Defect Allocation SmartSata II Interface Sata TerminologySpinpoint M8 Product Manual REV Physical Interface Signal Summary Signal DescriptionsControl Block Register Descriptions When read When written2 I/O Register Address RegistersError Register Ex F1h Command Block Register DescriptionsFeatures Register and Feature Extended Register Ex F1h Device Control Register ex F6hCommand Register Ex F7h Device Register Ex F6hStatus Register Ex F7h Staggered Spin-up Disable Control Sata II Feature SETDevice Activity Signal Auto-Activate in DMA Setup FISPhy. Event Counters Software Settings Preservation Sata Power ManagementCommand Table ATA Command DescriptionsCommand Code Parameters Command Descriptions Check Power Mode E5hCommand Device Configuration Overlay B1hDevice Configuration Overlay Feature Register Values Download Micro Code 92hDevice Configuration Identify data structure Word Content Flush Cache E7h, EAh extended Execute Device Diagnostics 90hDiagnostic Codes 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 WWNIdle E3h Automatic Standby Timer PeriodsIdle Immediate E1h Read Buffer E4h Initialize Device Parameters 91hNOP 00h 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 Security Erase Prepare F3h Security Disable Password F6hRecalibrate 10h Security Erase Unit F4hSecurity Set Password data content Security Set Password F1hSecurity Erase Unit Password Word Content Security Freeze Lock F5hSecurity Unlock F2h Set Features EFhIdentifier Level Command result Seek 7xh11 Set Features Register Definitions 12 Transfer Mode ValuesSet Max Address F9h, 37h extended Set Multiple Mode C6h13 Set Max Feature Register Values Sleep E6hSmart enable/disable attribute auto-save D2h 14 Smart Feature Registers ValuesSmart disable operations D9h Smart B0hSmart enable operations D8h Smart execute off-line immediate D4hSmart read data D0h 15 Device Smart Data StructureData Structure Revision Number 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 return status DAh Smart read log sector D5hSmart write log sector D6h Write DMA CAh, 35h extended Standby Immediate E0hWrite Buffer E8h 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 Service and Repair HDD handling guide Prevent Shocks
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