Sustained Ultra DMA data out burst | Samsung 3.5 hard disk drives

DISK DRIVE OPERATION

6.7.4.8Sustained Ultra DMA data out burst

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

HSTROBE

at host

DD(15:0)

at host

HSTROBE

at device

DD(15:0) at device

t2CYC

tCYC tCYC

t2CYC

tDVH

tDVS

tDVH

tDVS

tDVH

tDH

tDS

tDH

tDS

tDH

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

Figure 6-10Sustained Ultra DMA data out burst

SpinPoint V40 Product Manual

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Image 111

Samsung 3.5 hard disk drives, spinpoint v40 manual 10Sustained Ultra DMA data out burst

Contents

Spinpoint SpinPoint V40 Product Manual Table of Contents Ervo S Ystem EAD and W Rite O Perations Irmware F EaturesSmart Programming Requirements Protocol OverviewTiming General Information Maintenance PrecautionsService and Repair 107 Table of Figures Page User Definition Manual OrganizationScope Format C/S Commands and MessagesTerminology and Conventions Computer Message Reference Key Features IntroductionDescription Hardware Requirements Standards and Regulations Specifications Specification Summary Logical Configurations Physical Specifications Performance Specifications 28.71 Power Requirements SV6003H SV6014H SV8004H Environmental Specifications Mtbf POH Reliability Specifications Space Requirements Installation Unpacking Instructions MountingOrientation 2Mounting Dimensions in Millimeters 3Mounting-Screw Clearance Clearance Ventilation Cable ConnectorsDC Power Connector AT-Bus Interface Connector SpinPoint V40 Product Manual Jumper Block Configurations Options for Jumper Block Configuration 7DC Power Connector and AT-Bus Interface Cable Connections Drive Installation Parameter System Startup Procedure System Setup Disk Drive Operation Head / Disk Assembly HDABase Casting Assembly DC Spindle Motor Assembly Exploded Mechanical View Air Filtration System Disk Stack AssemblyHead Stack Assembly Voice Coil Motor and Actuator Latch Assemblies Digital Signal Process and Interface Controller Drive ElectronicsAT Disk Controller 2SID2001 AT Controller Block Diagram Host Interface Control Block Disk Control Block Buffer Control Block SpinPoint V40 Product Manual Frequency Synthesizer Power ManagementRead/Write IC Disk ECC Control Block Analog Anti-Aliasing Low Pass Filter Time Base GeneratorAutomatic Gain Control Asymmetry Correction Circuitry ASC 3Read/Write 88C5200 Servo System Read and Write OperationsRead Channel Firmware Features Write ChannelRead Caching Write Caching Smart Defect ManagementAutomatic Defect Allocation Multi-burst ECC Correction Blank Signal Conventions Signal SummaryPhysical Interface Signal Descriptions IOCS16- Drive 16-bit I/O DMACK- DMA AcknowledgeDmarq DMA Request Intrq Drive Interrupt PDIAG- Passed Diagnostics RESET- Drive ResetIordy I/O Channel Ready SD2 SD8 SD6 SD9 SD5SD4 SD3 Drive Host Drive DIR Environment Logical InterfaceGeneral Bit Conventions SpinPoint V40 Product Manual N N N A a a Command Block Registers2 I/O Register Address Control Block Registers Device Control Register 3F6h Control Block Register DescriptionsAlternate Status Register 3F6h Drive Address Register 3F7h Data Register 1F0h Command Block Register DescriptionsFeatures Register 1F1h Error Register 1F1h Cylinder Low Register 1F4h Command Register 1F7hSector Count Register 1F2h Cylinder High Register 1F5h BSY Drdy DWF DSC DRQ Corr IDX ERR Status Register 1F7h At Command Register Descriptions Command Parameter Used SpinPoint V40 Product Manual Check Power Mode 98h, E5h Execute Device Diagnostics 90hDownload Micro Code 92h Flush Cache E7h Format Track 50hIdentify Device ECh Xxxx Word Content Description Capabilities Command set supported 95-128 0000h Reserved 129-159 Vendor specific 160-255 Idle 97h,E3h Idle Immediate 95h,E1hInitialize Device Parameters 91h Read Long 22hwith retry, 23h without retry Read Buffer E4h Read Multiple Command C4h Read Sectors 20hwith retry, 21hwithout retry Read Native Max Address F8h Read Verify Sectors 40hwith retry, 41hwithout retry Recalibrate 1xhSeek 7xh Mode Set Features EFh BSY Drdy DRQ ERR InputsLBA Normal outputs Description Sleep 99h, E6h Set Multiple Mode C6h Smart disable operation D9h Standby 96h,E2hSmart B0h Smart enable/disable attribute autosave D2h Smart enable operations D8hSmart execute off-line immediate D4h Byte Descriptions Smart read data D0h Off-line data collection capability Value Definition Smart save attribution value D3h Smart capabilitySmart read log sector D5h Smart return status DAh Write DMA CAh Standby 96h, E2hStandby Immediate 94h, E0h Write Buffer E8h Write Sectors 30hwith retry, 31hwithout retry Write Multiple Command C5h SpinPoint V40 Product Manual Reset Response Error PostingProgramming Requirements BBK Command Error Register Status Register Idle mode Power ConditionsSleep mode Standby mode Normal mode Protocol Overview PIO Data in Commands PIO Data Out Commands PIO Read CommandPIO Read Aborted Command BSY=0 DRQ=1 BSY=1 DRQ=0 PIO Write CommandPIO Write Aborted Command BSY=0 DRDY=1 BSY=1 Non-Data Commands DMA Data Transfer Commands Aborted DMA Command Initialize DMA Reset DMA Status BSY=0 BSY=1BSY=1 BSY=0 Register transfers Timing DIOR-/DIOW Write PIO data transfers PIO timing parameters Mode Addr valid See note T1 t2 DIOR-/DIOW DIOR-/DIOW Multiword DMA data transfer Multiword DMA timing parameters Mode Initiating an Ultra DMA data in burst Ultra DMA data transfer 19Ultra DMA data burst timing requirements Ultra DMA data burst timing requirements 5Sustained Ultra DMA data in burst Sustained Ultra DMA data in burst 6Host pausing an Ultra DMA data in burst Host pausing an Ultra DMA data in burst 7Device terminating an Ultra DMA data in burst 100 Device terminating an Ultra DMA data in burst 8Host terminating an Ultra DMA data in burst Host terminating an Ultra DMA data in burst 9Initiating an Ultra DMA data out burst 102 Initiating an Ultra DMA data out burst 10Sustained Ultra DMA data out burst Sustained Ultra DMA data out burst 11Device pausing an Ultra DMA data out burst 104 Device pausing an Ultra DMA data out burst 12Host terminating an Ultra DMA data out burst Host terminating an Ultra DMA data out burst 13Device terminating an Ultra DMA data out burst 106 Device terminating an Ultra DMA data out burst Maintenance Precautions Service And RepairGeneral Information