Samsung M9T manual 2 I/O Register Address, Control Block Register Descriptions, Registers

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6.3.2I/O Register - Address

The communication to or from drive is through the SATA interface. To the host system the SATA drive emulates a parallel ATA drive. As such, the following registers are not accessed directly host to drive. The registers are set through the Serial Interface.

The Control Block registers are used for drive control and to post-alternate status. I/O port function and its selection address are tabulated.

I/O registers
Command Block registers
When read	When written
Data	Data
Error	Features Current
	Features Previous
Sector Count Current	Sector Count Current
Sector Count Previous	Sector Count Previous
LBA Low Current	LBA Low Current
LBA Low Previous	LBA Low Previous
LBA Mid Current	LBA Mid Current
LBA Mid Previous	LBA Mid Previous
LBA High Current	LBA High Current
LBA High Previous	LBA High Previous
Device	Device
Status	Command
Control Block registers
Alternate Status	Device Control

6.3.3Control Block Register Descriptions

6.3.3.1Alternate Status Register (ex. 3F6h)

This register contains the same information as the Status register in the Command Block register. The only difference is that reading this register does not imply interrupt acknowledgment nor does it clear a pending interrupt.

7	6	5	4	3	2	1	0
BSY	DRDY	#	#	DRQ	Obsolete	Obsolete	ERR

NOTE: See 6.3.4.10 for definitions of the bits in this register.

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 Requirements Power consumptionPower consumption RatedLinear Shock 1/2 sine pulse Environmental SpecificationsEnvironmental Specifications 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 ConnectionsDC Spindle Motor Assembly Head / Disk Assembly HDABase Casting Assembly Disk Drive OperationExploded Mechanical View Voice Coil Motor and Actuator Latch Assemblies Disk Stack AssemblyHead Stack Assembly 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 Time Base Generator Power ManagementRead/Write IC 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 Smart Defect ManagementAutomatic Defect Allocation 6 APMSata II Interface Sata TerminologySpinpoint M9T Product Manual REV Physical Interface Signal Summary Signal DescriptionsControl Block Register Descriptions When read When written2 I/O Register Address RegistersCommand Block Register Descriptions Command 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 ManagementATA Command Descriptions Command TableCommand Code Parameters Smart Device Configuration Overlay B1h Command DescriptionsCheck Power Mode E5h 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 WWNAutomatic Standby Timer Periods Idle E3hIdle Immediate E1h Read Buffer E4h Initialize Device Parameters 91hNOP 00h 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 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 F5hSet Features EFh Security Unlock F2hSeek 7xh 11 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 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 Write DMA CAh, 35h extended Standby Immediate E0hWrite Buffer E8h 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