Maxtor 2B020H1, 2B015H1, 2B010H1 manual VAL UE Omman D

Page 47

INTERFACE COMMANDS

Read Native Max Address

This command returns the native maximum address. The native maximum address is the highest address accepted by the drive in the factory default condition. The native maximum address is the maximum address that is valid when using the SET MAX ADDRESS command.

Set Max

Individual SET MAX commands are identified by the value placed in the Features register. After successful command completion, all read and write access attempts to addresses greater than specified by the successful SET MAX ADDRESS command are rejected with an IDNF error. IDENTIFY DEVICE response words 1, 54, 57, 60 and 71 will reflect the maximum address set with this command.

VAL UE

C OMMAN D

 

 

00 h

obsolete

 

 

01h

Set Max Set Password

 

 

02h

Set Max Lock

03h

Set Max Unlock

 

 

04h

Set Max F reeze Lock

 

 

05h-F Fh

reserved

Set Max Password

This sub-command requests a transfer of a single sector of data from the host. The password is retained by the drive until the next power cycle.

Set Max Lock

After this sub-command is completed any other SET MAX commands except SET MAX UNLOCK and SET MAX FREEZE LOCK are rejected. The drive remains in this state until a power cycle or the acceptance of a SET MAX UNLOCK or SET MAX FREEZE LOCK command.

Set Max Unlock

This sub-command requests a transfer of a single sector of data from the host. The password supplied in the sector of data transferred will be compared with the stored SET MAX password.

If the password compare fails, then the drive returns command aborted and decrements the unlock counter. On the acceptance of the SET MAX LOCK command, this counter is set to a value of five and will be decremented for each password mismatch when SET MAX UNLOCK is issued and the drive is locked. When this counter reaches zero, then the SET MAX UNLOCK command will return command aborted until a power cycle.

If the password compare matches, then the drive will make a transition to the Set_Max_Unlocked state and all SET MAX commands will be accepted.

Set Max Freeze Lock

After sub-command completion any subsequent SET MAX commands are rejected. Commands disabled by SET MAX FREEZE LOCK are:

Set Max Address

Set Max Set Password

Set Max Lock

Set Max Unlock

7 – 7

Image 47
Contents Maxtor 541DX Product Manual U T I O N Before You BeginContents Handling and Installation Product SpecificationsHost Software Interface Interface CommandsAT Interface Description Glossary Service and SupportFigures Abbreviations IntroductionMaxtorCorporation ManualOrganizationConventions ProductDescription Key FeaturesModels CYL SP T MAX LBA Capacity Product FeaturesFunctional / Interface CacheManagement Major HDA Components Cylinder Limitation Jumper Description SubsystemConfigurationJumper Location / Configuration Jumper ConfigurationModels and Capacities ProductSpecificationsDrive Configuration PerformanceSpecificationsParam Eter Valu E Physical DimensionsEnvironmental Limits PowerRequirementsPower Mode Definitions EPA Energy Star ComplianceParam Eter Oper AT ING ON- Oper AT ING Reliability SpecificationsShock and Vibration EMC/EMI Safety Regulatory ComplianceElectro-Static Discharge ESD HandlingandInstallationHard Drive Handling Precautions Multi-pack Shipping Container Unpacking and InspectionRepacking Physical InstallationHook up Before You BeginStart up Set upPIN IGN AL InterfaceConnectorATInterfaceDescription PinDescriptionSummaryPin Description Table PIN Name Signal Name Signal Desc RiptionPIO Timing IM in G Paramet ERS ModeDMATiming Imin G Paramet ERS ModeMode Ultra DMA TimingSustained Ultra DMA Data In Burst Device Terminating an Ultra DMA Data In Burst Initiating an Ultra DMA Data Out Burst Device Pausing an Ultra DMA Data Out Burst Device Terminating an Ultra DMA Data Out Burst POR T EAD WR ITE HostSoftwareInterfaceTask File Registers Conten TS LBA Bits Seek, Format, and Diagnostic Commands CommandRegisterM M a N D N a M E M M a N D code PA R a M E T E R S U S E D SummaryControl Diagnostic Registers Reset and Interrupt Handling InterfaceCommands ReadCommands Read DMA WriteCommands Write Multiple EC TOR LE VE L ModeSet/CheckCommandsVAL UE DES C RIP Tion VAL UE Omman D Timer VAL UE TIME-OUT Period PowerModeCommandsSleep Mode Or D ENT Desc Ription InitializationCommandsOr D 15- 10, as c urrently defined Initialize Drive Parameters ER ROR Code Desc Ription Seek,FormatandDiagnosticCommandsKey Register A.R.T. CommandSetProduct Support ServiceandSupportService Policy No Quibble ServiceFrom Dial Glossary Character Correctable errorCentral processing unit CPU ChannelError free Direct accessDirect memory access DMA Error correction code ECCGigabyte GB Hard errorHead disk assembly HDA Frequency responseLogical address Late windowLatency LogicRead gate signal Phase locked loop PLLPhase margin Random access memory RAMSoft error Sector pulse signalSeek complete signal Sequential accessWrite gate signal Strobe offset signalUn-correctable error Unrecoverable error