Samsung spinpoint v40, 3.5" hard disk drives manual 5Sustained Ultra DMA data in burst

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DISK DRIVE OPERATION

Table 6-19Ultra DMA data burst timing requirements (cont).

NOTES −

1 Timing parameters shall be measured at the connector of the sender or receiver to which the parameter applies. For example, the sender shall stop generating STROBE edges tRFS after the negation of DMARDY-. Both STROBE and DMARDY- timing measurements are taken at the connector of the sender.

2 All timing measurement-switching points (low to high and high to low) shall be taken at 1.5V.

3tUI , tMLI , and tLI indicate sender-to-recipient or recipient-to-sender interlocks, i.e., either sender or recipient is waiting for the other to respond with a signal before proceeding. tUI is an unlimited interlock that has no maximum time value. tMLI is a limited time-out that has a defined minimum. tLI is a limited time-out that has a defined maximum.

4The test load for tDVS and tDVH shall be a lumped capacitor load with no cable or receivers. Timing for tDVS and tDVH shall be met for all capacitive loads from 15 to 40 pf where all signals have the same capacitive load value.

5tZIORDY may be greater than tENV since the device has a pull up on IORDY- giving it a known state when released.

6.7.4.3Sustained Ultra DMA data in burst

The values for the timings for each of the Ultra DMA modes are contained in 6.7.4.2.

DSTROBE

at device

DD(15:0) at device

	t2CYC
	tCYC	tCYC
		t2CYC
tDVH	tDVH	tDVH
	tDVS	tDVS

DSTROBE

at host

DD(15:0)

at host

tDHtDS

tDHtDS

tDH

NOTE − DD(15:0) and DSTROBE signals are shown at both the host and the device to emphasize that cable settling time as well as cable propagation delay shall not allow the data signals to be considered stable at the host until some time after they are driven by the device.

Figure 6-5Sustained Ultra DMA data in burst

98	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