Status Register Ex F7h | Samsung M9T manual

•DEV is reserved.

•Bit0-bit3 is defined for the binary coded address of the head to be selected in CHS mode (e.g. if H3 through HS0 are 0011b, respectively, then head 3 will be selected). HS3 is the most significant bit. In 28 bit LBA mode bit0-3 HS3 contains bits 24-27 of the LBA. After command completion, this register is updated to reflect the currently selected disk address.

•LBA is to select the Logical Block Addressing Mode. When LBA=0, disk addressing is by CHS mode.

•When LBA=1, disk addressing is by LBA mode. This bit was set to zero when the ATA drive didn’t support LBA mode.

6.3.4.10Status Register (Ex. 1F7h)

This register contains the drive status. The contents of this register are updated at the completion of each command. When BSY is cleared, the other bits in this register become valid within 400 nsec. If BSY=1, no other bits in this register are valid. If the host reads this register when an interrupt is pending, it is considered to be the interrupt acknowledge. Any pending interrupt is cleared whenever this register is read.

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

•B S Y (Busy) is set whenever the drive has access to the Command Block registers. The host should not access the Command Block registers when BSY=1. When BSY=1, a read of any Command Block register returns the contents of the Status register.

•D R D Y (Drive Ready) indicates that the drive is capable of responding to a command. When there is an error, this bit does not change until the host reads the Status register. Then the bit again indicates the current readiness of the drive. This bit clears at power-on and remains clear until the drive is ready to accept the command.

•D R Q (Data Request) indicates that the drive is ready to transfer a word or byte of data between the host and the drive.

•E R R (Error) indicates that an error occurred during execution of the previous command. The bits in the Error register have additional information regarding the cause of the error.

Spinpoint M9T Product Manual REV 1.0

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Samsung M9T manual Status Register Ex F7h

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 Reference Sata Introduction Description Key Features Hardware Requirements Standards and Regulations Specification Summary Specifications Logical Configurations Physical Specifications Performance Specifications Power consumption Power consumptionPower Requirements Rated Environmental Specifications Environmental SpecificationsLinear Shock 1/2 sine pulse Rotational Shock Reliability Specifications Space Requirements Installation Mounting Unpacking Instructions Orientation Mounting Dimensions Cable Connectors VentilationSata Connectivity Computer mainboard or Serial ATA host adapter Management Power HDD Power, Sata Interface, and Factory Jumper Connector SATA-Bus Interface Connector DC Power Connector and SATA-Bus Interface Cable Connections Drive Installation Base Casting Assembly Head / Disk Assembly HDADC Spindle Motor Assembly Disk Drive Operation Exploded Mechanical View Head Stack Assembly Disk Stack AssemblyVoice Coil Motor and Actuator Latch Assemblies Air Filtration System Digital Signal Process and Interface Controller Drive ElectronicsDisk Controller DDR Buffer Control Block Host Interface Control Block Disk Control Block Disk Ldpc Control BlockFrequency Synthesizer Read/Write IC Power ManagementTime Base Generator Automatic Gain Control Analog to Digital Converter ADC and FIR Analog Anti-Aliasing Low Pass Filter Servo System Read and Write OperationsRead Channel Firmware Features Write ChannelRead Caching Write Caching Automatic Defect Allocation Defect ManagementSmart 6 APM Sata Terminology Sata II Interface Spinpoint M9T Product Manual REV Signal Descriptions Physical Interface Signal Summary 2 I/O Register Address When read When writtenControl Block Register Descriptions Registers Command Block Register Descriptions Device Register Ex F6h Command Register Ex F7h Status Register Ex F7h Device Activity Signal Sata II Feature SETStaggered Spin-up Disable Control Auto-Activate in DMA Setup FIS Phy Event Counters Sata Power Management Software Settings Preservation ATA Command Descriptions Command TableCommand Code Parameters Smart Check Power Mode E5h Command DescriptionsDevice Configuration Overlay B1h Download Micro Code 92h Device Configuration Identify data structure Word Content Diagnostic Codes Execute Device Diagnostics 90hFlush Cache E7h, EAh extended Format Track 50h Identify Device information Content Description =the fields reported in word 88 are valid EXT =Media Card Pass Through command feature set supported WWN Word Content Description Automatic Standby Timer Periods Idle E3hIdle Immediate E1h NOP 00h Initialize Device Parameters 91hRead Buffer E4h Read DMA C8h, 25h extended Read 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 Recalibrate 10h Security Disable Password F6hSecurity Erase Prepare F3h Security Erase Unit F4h Security Erase Unit Password Word Content Security Set Password F1hSecurity Set Password data content Security Freeze Lock F5h Set Features EFh Security Unlock F2hSeek 7xh 12 Transfer Mode Values 11 Set Features Register Definitions 13 Set Max Feature Register Values Set Multiple Mode C6hSet Max Address F9h, 37h extended Sleep E6h Smart disable operations D9h 14 Smart Feature Registers ValuesSmart enable/disable attribute auto-save D2h Smart B0h Smart execute off-line immediate D4h Smart enable operations D8h 15 Device Smart Data Structure Smart read data D0h Byte 16 Smart Attribute Status Flags Bit Name Description 18 Off-line Data Collection Status Values 17 Smart Attribute Data List 19 Self-test Execution Status Values Self-test execution status byte Smart read log sector D5h Smart return status DAhSmart write log sector D6h Write Buffer E8h Standby Immediate E0hWrite DMA CAh, 35h extended Write Fpdma Queued 61h Write Sectors 30h, 34h extended Write Multiple Command C5h, 39h extended Spinpoint M9T Product Manual REV Maintenance Maintenance PrecautionsGeneral Information HDD handling guide -Please handle HDD by side surfaces HDD handling guide Prevent Shocks Service and Repair