Samsung spinpoint v40 Idle 97h,E3h, Idle Immediate 95h,E1h, Initialize Device Parameters 91h

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DISK DRIVE OPERATION

6.4.7Idle (97h,E3h)

This command causes the drive to set BSY, enter the Idle Mode, clear BSY, and generate an interrupt. The interrupt is generated even though the drive may not have fully transitioned to Idle Mode.

If the drive is already spinning, the spin-up sequence is not executed.

If the Sector Count register is non-zero, then the automatic Idle Mode sequence is enabled, and the timer begins counting down immediately. If the Sector Count register is zero, the automatic power down sequence is disabled.

After the drive enters Idle Mode, it automatically transitions to Standby Mode upon expiration of a prescribed 1 minute spin-down timer.

Table 6-7Automatic Standby Timer Periods

Sector Count Register Contents		Corresponding Time-out Period

0	(00h)	Timeout Disabled

1-240 (01h-FOh)		(value * 5) seconds

241-251 (F1h-FBh)		(value - 240) * 30 minutes
252	(FCh)	21 minutes
253	(FDh)	8 hours
254	(FEh)	Reserved

255	(FFh)	21 minutes 15 seconds

6.4.8Idle Immediate (95h,E1h)

This command causes the drive to set BSY, enter Idle Mode, clear BSY, and generate an interrupt. The interrupt is generated even though the drive may not have fully transitioned to Idle Mode.

6.4.9 Initialize Device Parameters (91h)

This command enables the host to set the number of sectors per track and the number of heads minus 1, per cylinder. Upon receipt of the command, the drive sets BSY, saves the parameters, clears BSY, and generates an interrupt.

The only two register values used by this command are the Sector Count register which specifies the number of sectors per track, and the Drive/Head register which specifies the number of heads minus 1. The DRV bit designates these values to Drive 0 or Drive 1, as appropriate.

62	SpinPoint V40 Product Manual

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Contents Spinpoint SpinPoint V40 Product Manual Table of Contents Irmware F Eatures Ervo S Ystem EAD and W Rite O PerationsSmart Protocol Overview Programming RequirementsTiming 107 Maintenance PrecautionsService and Repair General InformationTable of Figures Page Manual Organization User DefinitionScope Computer Message Commands and MessagesTerminology and Conventions Format C/SReference Introduction Key FeaturesDescription Standards and Regulations Hardware RequirementsSpecification Summary SpecificationsPhysical Specifications Logical ConfigurationsPerformance Specifications Power Requirements 28.71Environmental Specifications SV6003H SV6014H SV8004HReliability Specifications Mtbf POHInstallation Space RequirementsMounting Unpacking InstructionsOrientation 2Mounting Dimensions in Millimeters Clearance 3Mounting-Screw ClearanceAT-Bus Interface Connector Cable ConnectorsDC Power Connector VentilationSpinPoint V40 Product Manual Jumper Block Configurations Options for Jumper Block Configuration Drive Installation 7DC Power Connector and AT-Bus Interface Cable ConnectionsSystem Startup Procedure ParameterSystem Setup DC 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 SystemDrive Electronics Digital Signal Process and Interface ControllerAT Disk Controller 2SID2001 AT Controller Block Diagram Host Interface Control Block Buffer Control Block Disk Control BlockSpinPoint V40 Product Manual Disk ECC Control Block Power ManagementRead/Write IC Frequency SynthesizerAsymmetry Correction Circuitry ASC Time Base GeneratorAutomatic Gain Control Analog Anti-Aliasing Low Pass Filter3Read/Write 88C5200 Read and Write Operations Servo SystemRead Channel Write Channel Firmware FeaturesRead Caching Write Caching Multi-burst ECC Correction Defect ManagementAutomatic Defect Allocation SmartBlank Signal Summary Signal ConventionsPhysical Interface Signal Descriptions Intrq Drive Interrupt DMACK- DMA AcknowledgeDmarq DMA Request IOCS16- Drive 16-bit I/ORESET- Drive Reset PDIAG- Passed DiagnosticsIordy I/O Channel Ready SD3 SD8 SD6 SD9 SD5SD4 SD2Drive Drive HostDIR Bit Conventions Logical InterfaceGeneral EnvironmentSpinPoint V40 Product Manual Control Block Registers Command Block Registers2 I/O Register Address N N N A a aDrive Address Register 3F7h Control Block Register DescriptionsAlternate Status Register 3F6h Device Control Register 3F6hError Register 1F1h Command Block Register DescriptionsFeatures Register 1F1h Data Register 1F0hCylinder High Register 1F5h Command Register 1F7hSector Count Register 1F2h Cylinder Low Register 1F4hStatus Register 1F7h BSY Drdy DWF DSC DRQ Corr IDX ERRAt Command Register Descriptions Command Parameter Used SpinPoint V40 Product Manual Execute Device Diagnostics 90h Check Power Mode 98h, E5hDownload Micro Code 92h Format Track 50h Flush Cache E7hIdentify Device ECh Word Content Description XxxxCapabilities Command set supported 95-128 0000h Reserved 129-159 Vendor specific 160-255 Idle Immediate 95h,E1h Idle 97h,E3hInitialize Device Parameters 91h Read Buffer E4h Read Long 22hwith retry, 23h without retryRead Multiple Command C4h Read Native Max Address F8h Read Sectors 20hwith retry, 21hwithout retryRecalibrate 1xh Read Verify Sectors 40hwith retry, 41hwithout retrySeek 7xh Set Features EFh ModeNormal outputs InputsLBA BSY Drdy DRQ ERRDescription Set Multiple Mode C6h Sleep 99h, E6hStandby 96h,E2h Smart disable operation D9hSmart B0h Smart enable operations D8h Smart enable/disable attribute autosave D2hSmart execute off-line immediate D4h Smart read data D0h Byte DescriptionsValue Definition Off-line data collection capabilitySmart return status DAh Smart capabilitySmart read log sector D5h Smart save attribution value D3hWrite Buffer E8h Standby 96h, E2hStandby Immediate 94h, E0h Write DMA CAhWrite Multiple Command C5h Write Sectors 30hwith retry, 31hwithout retrySpinPoint V40 Product Manual Error Posting Reset ResponseProgramming Requirements Command Error Register Status Register BBKStandby mode Power ConditionsSleep mode Idle modeNormal mode PIO Data in Commands Protocol OverviewPIO Read Command PIO Data Out CommandsPIO Read Aborted Command BSY=0 DRDY=1 BSY=1 PIO Write CommandPIO Write Aborted Command BSY=0 DRQ=1 BSY=1 DRQ=0Non-Data Commands DMA Data Transfer Commands BSY=0 BSY=1 Aborted DMA Command Initialize DMA Reset DMA StatusBSY=1 BSY=0 Timing Register transfersDIOR-/DIOW Write PIO timing parameters Mode PIO data transfersAddr valid See note T1 t2 DIOR-/DIOW Multiword DMA data transfer DIOR-/DIOWMultiword DMA timing parameters Mode Ultra DMA data transfer Initiating an Ultra DMA data in burstUltra DMA data burst timing requirements 19Ultra DMA data burst timing requirementsSustained Ultra DMA data in burst 5Sustained Ultra DMA data in burstHost pausing an Ultra DMA data in burst 6Host pausing an Ultra DMA data in burstDevice terminating an Ultra DMA data in burst 7Device terminating an Ultra DMA data in burst 100Host terminating an Ultra DMA data in burst 8Host terminating an Ultra DMA data in burstInitiating an Ultra DMA data out burst 9Initiating an Ultra DMA data out burst 102Sustained Ultra DMA data out burst 10Sustained Ultra DMA data out burstDevice pausing an Ultra DMA data out burst 11Device pausing an Ultra DMA data out burst 104Host terminating an Ultra DMA data out burst 12Host terminating an Ultra DMA data out burstDevice terminating an Ultra DMA data out burst 13Device terminating an Ultra DMA data out burst 106Service And Repair Maintenance PrecautionsGeneral Information