Maxtor 2B020H1, 2B015H1, 2B010H1 manual Initialize Drive Parameters

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INTERFACE COMMANDS

Initialize Drive Parameters

Enables the drive to operate as any logical drive type. The drive will always be in the translate mode because of Zone Density Recording, which varies the number of sectors per track depending on the zone.

Through setting the Sector Count Register and Drive Head Register, this command lets the host alter the drive's logical configuration. As a result, the drive can operate as any equal to or less than capacity drive type. Do not exceed the total number of sectors available on the drive:

When this command is executed, the drive reads the Sector Counter Register and the Drive Head Register (and so determines the number of the logical sectors per track and maximum logical head number per cylinder and will calculate the number of logical cylinders.)

Upon receipt of the command, the drive:

1.Sets BSY,

2.Saves the parameters,

3.Resets BSY and

4.Generates an interrupt.

To specify maximum heads, write 1 less than the maximum (e.g. write 4 for a 5 head drive). To specify maximum sectors, specify the actual number of sectors (e.g. 17 for a maximum of 17 sectors/track).

The sector count and head values are not checked for validity by this command. If they are invalid, no error will be posted until an illegal access is made by some other command.

Moves the read/write heads from anywhere on the disk to cylinder 0.

When this command is received, the drive:

1.Sets BSY and

2.Issues a seek to cylinder zero.

The drive waits for the seek to complete, then the drive:

1.Updates status,

2.Resets BSY and

3.Generates an interrupt.

If the drive cannot reach cylinder 0, the Error bit is set in the Status register, and the Track 0 bit is set in the Error register.

NOTE: If a maximum head and sector number is selected – such that the number of cylinders will exceed 65,535 – then the maximum cylinder value will be reduced to 65, 535.

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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 MaxtorCorporation IntroductionManualOrganization AbbreviationsConventions ProductDescription Key FeaturesModels CYL SP T MAX LBA Capacity Product FeaturesFunctional / Interface CacheManagement Major HDA Components Jumper Location / Configuration SubsystemConfigurationJumper Configuration Cylinder Limitation Jumper DescriptionDrive Configuration ProductSpecificationsPerformanceSpecifications Models and CapacitiesParam Eter Valu E Physical DimensionsPower Mode Definitions PowerRequirementsEPA Energy Star Compliance Environmental LimitsParam 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 upATInterfaceDescription InterfaceConnectorPinDescriptionSummary PIN IGN ALPin 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. CommandSetService Policy ServiceandSupportNo Quibble Service Product SupportFrom Dial Glossary Central processing unit CPU Correctable errorChannel CharacterDirect memory access DMA Direct accessError correction code ECC Error freeHead disk assembly HDA Hard errorFrequency response Gigabyte GBLatency Late windowLogic Logical addressPhase margin Phase locked loop PLLRandom access memory RAM Read gate signalSeek complete signal Sector pulse signalSequential access Soft errorUn-correctable error Strobe offset signalUnrecoverable error Write gate signal