Recalibrate 10h, Security Disable Password F6h | Samsung M8 instruction

8.2.21Recalibrate (10h)

This command is obsolete in the ATA7 specification. The supporting of this command is for backward compatibility purpose. The use of this command is beyond the ATA standard and not recommended by the manufacturer.

This command moves the read/write heads from anywhere on the disk to cylinder 0. Upon receipt of the command, the drive issues a seek to cylinder zero. The drive then waits for the seek to complete before updating status, clearing BSY, and generating an interrupt. If the drive cannot reach cylinder 0, it posts a Track 0 Not Found error.

8.2.22Security Disable Password (F6h)

The SECURITY DISABLE PASSWORD command transfers 512 bytes of data from the host. In Table 6-6 it defines the content of the security password. If the password selected by word 0 matches the password previously saved by the device, the device shall unlock mode. This command shall not change the Master password. The Master password shall be reactivated only when a User password is set.

	Table 8-7 Security password content

Word		Content
0	Control word.
	Bit 0	Identifier 0= compare User password
	password	1= compare Master
	password
	Bit (15:1)Reserved
1-16	Password (32 bytes)
17-255	Reserved

8.2.23 Security Erase Prepare (F3h)

The SECURITY ERASE PREPARE command shall be issued immediately before the SECURITY ERASE UNIT command to enable device erasing and unlocking. This command prevents accidental loss of data on the device.

8.2.24Security Erase Unit (F4h)

This command transfers 512 bytes of data from the host. Table 6-7 defines the content of this information. If the password does not match the password previously saved by the device, the device shall reject the command with by abortion.

Spinpoint M8 Product Manual REV 2.3

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Samsung M8 manual Recalibrate 10h, Security Disable Password F6h, Security Erase Prepare F3h, Security Erase Unit F4h

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 Scope User DefinitionManual Organization Sata Reference Description Introduction Key Features Standards and Regulations Hardware Requirements Specifications SpecificationsSpecification Summary Spindle speed RPM RPM Class Physical Specifications Physical SpecificationsLogical Configurations Physical dimensions Performance Specifications Power Requirements Power consumptionPower consumption Rated Environmental Specifications Environmental Specifications 15.0 Reliability Specifications Installation Space Requirements Unpacking Instructions Mounting Mounting Dimensions Orientation Clearance Mounting-Screw Clearance Cable Connectors VentilationSata Connectivity Serial ATA Power Management HDD Power, Sata Interface, and Factory Jumper Connector Pin Locations on the Drive Pcba Drive Installation DC Power Connector and SATA-Bus Interface Cable Connections DC Spindle Motor Assembly Head / Disk Assembly HDABase Casting Assembly Disk Drive Operation CoverAssembly Voice Coil Motor and Actuator Latch Assemblies Disk Stack AssemblyHead Stack Assembly Air Filtration System Digital Signal Process and Interface Controller Drive ElectronicsDisk Controller DDR Host Interface Control Block Buffer Control Block Disk Control Block Disk Ldpc Control BlockFrequency Synthesizer Time Base Generator Power ManagementRead/Write IC Automatic Gain Control Analog Anti-Aliasing Low Pass Filter Analog to Digital Converter ADC and FIR Servo System Read and Write OperationsRead Channel Firmware Features Write ChannelRead Caching Write Caching Multi-burst ECC Correction Defect ManagementAutomatic Defect Allocation Smart Sata II Interface Sata Terminology Spinpoint M8 Product Manual REV Physical Interface Signal Summary Signal Descriptions Control Block Register Descriptions When read When written2 I/O Register Address Registers Error Register Ex F1h Command Block Register DescriptionsFeatures Register and Feature Extended Register Ex F1h Device Control Register ex F6h Command Register Ex F7h Device Register Ex F6h Status Register Ex F7h Staggered Spin-up Disable Control Sata II Feature SETDevice Activity Signal Auto-Activate in DMA Setup FIS Phy. Event Counters Software Settings Preservation Sata Power Management ATA Command Descriptions Command TableCommand Code Parameters Command Descriptions Check Power Mode E5h Command Device Configuration Overlay B1hDevice Configuration Overlay Feature Register Values Download Micro Code 92h Device Configuration Identify data structure Word Content Flush Cache E7h, EAh extended Execute Device Diagnostics 90hDiagnostic Codes Format Track 50h Content Description Identify Device information =the fields reported in word 88 are valid EXT =Media Card Pass Through command feature set supported Word Content Description WWN Automatic Standby Timer Periods Idle E3hIdle Immediate E1h Read Buffer E4h Initialize Device Parameters 91hNOP 00h 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 Security Erase Prepare F3h Security Disable Password F6hRecalibrate 10h Security Erase Unit F4h Security Set Password data content Security Set Password F1hSecurity Erase Unit Password Word Content Security Freeze Lock F5h Security Unlock F2h Set Features EFhIdentifier Level Command result Seek 7xh 11 Set Features Register Definitions 12 Transfer Mode Values Set Max Address F9h, 37h extended Set Multiple Mode C6h13 Set Max Feature Register Values Sleep E6h Smart enable/disable attribute auto-save D2h 14 Smart Feature Registers ValuesSmart disable operations D9h Smart B0h Smart enable operations D8h Smart execute off-line immediate D4h Smart read data D0h 15 Device Smart Data Structure Data Structure Revision Number Bit Name Description 16 Smart Attribute Status Flags 17 Smart Attribute Data List 18 Off-line Data Collection Status Values Self-test execution status byte 19 Self-test Execution Status Values Smart 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 61h Write Multiple Command C5h, 39h extended Write Long 32hWrite Sectors 30h, 34h extended Spinpoint M8 Product Manual REV Maintenance Maintenance PrecautionsGeneral Information HDD handling guide -Please handle HDD by side surfaces Service and Repair HDD handling guide Prevent Shocks