Cable Connectors, Ventilation | Samsung spinpoint v40 guide

INSTALLATION

4.3.3Ventilation

SpinPoint V40 hard disk drives are designed to operate without the need of a cooling fan, provided the ambient air temperature does not exceed 55ºC. Any user-designed cabinet must provide adequate air circulation to prevent exceeding the maximum temperature.

4.4Cable Connectors

The JHST connector consists of three portions; a DC power connector, a configuration jumper block, and the standard 40 pin AT-Bus Interface connector.

4.4.1 DC Power Connector

The DC power connector is mounted on the back edge of the Printed Circuit Board (PCB) (Figure 4-4). Table 4-1lists the pin assignments.

Table 4-1Power Connector Pin Assignment

Pin Number

Power Line Designation

1	+12V DC
2	+12V Return (Ground)

3	+5V Return (Ground)

4	+5V DC

4.4.2 AT-Bus Interface Connector

The AT-Bus interface connector on the drive connects the drive to an adapter or an on-board AT adapter in the computer. JHST is a 40-pin Universal Header with two rows of 20 pins on 100-mil centers, as shown in Figure 4-4.

To prevent the incorrect installation of the I/F cable, the connector has been keyed by the removal of Pin #20. The connecting cable is a 40-conductor flat ribbon cable, and the maximum cable length is 0.46m (18 inches).

For pin assignments and signal descriptions, see Chapter 6, AT Interface and ATA Commands.

16	SpinPoint V40 Product Manual

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Samsung spinpoint v40, 3.5 hard disk drives Cable Connectors, Ventilation, DC Power Connector, AT-Bus Interface Connector

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 Maintenance Precautions Service and Repair107 General Information Table of Figures Page User Definition Manual OrganizationScope Commands and Messages Terminology and ConventionsComputer Message Format C/S Reference Key Features IntroductionDescription Standards and Regulations Hardware Requirements Specification Summary Specifications Physical Specifications Logical Configurations Performance Specifications Power Requirements 28.71 Environmental Specifications SV6003H SV6014H SV8004H Reliability Specifications Mtbf POH Installation Space Requirements Unpacking Instructions MountingOrientation 2Mounting Dimensions in Millimeters Clearance 3Mounting-Screw Clearance Cable Connectors DC Power ConnectorAT-Bus Interface Connector Ventilation SpinPoint V40 Product Manual Jumper Block Configurations Options for Jumper Block Configuration Drive Installation 7DC Power Connector and AT-Bus Interface Cable Connections System Startup Procedure Parameter System Setup Head / Disk Assembly HDA Base Casting AssemblyDC Spindle Motor Assembly Disk Drive Operation Exploded Mechanical View Disk Stack Assembly Head Stack AssemblyVoice Coil Motor and Actuator Latch Assemblies Air Filtration System Digital Signal Process and Interface Controller Drive ElectronicsAT Disk Controller 2SID2001 AT Controller Block Diagram Host Interface Control Block Buffer Control Block Disk Control Block SpinPoint V40 Product Manual Power Management Read/Write ICDisk ECC Control Block Frequency Synthesizer Time Base Generator Automatic Gain ControlAsymmetry Correction Circuitry ASC Analog Anti-Aliasing Low Pass Filter 3Read/Write 88C5200 Servo System Read and Write OperationsRead Channel Firmware Features Write ChannelRead Caching Write Caching Defect Management Automatic Defect AllocationMulti-burst ECC Correction Smart Blank Signal Conventions Signal SummaryPhysical Interface Signal Descriptions DMACK- DMA Acknowledge Dmarq DMA RequestIntrq Drive Interrupt IOCS16- Drive 16-bit I/O PDIAG- Passed Diagnostics RESET- Drive ResetIordy I/O Channel Ready SD8 SD6 SD9 SD5 SD4SD3 SD2 Drive Drive Host DIR Logical Interface GeneralBit Conventions Environment SpinPoint V40 Product Manual Command Block Registers 2 I/O Register AddressControl Block Registers N N N A a a Control Block Register Descriptions Alternate Status Register 3F6hDrive Address Register 3F7h Device Control Register 3F6h Command Block Register Descriptions Features Register 1F1hError Register 1F1h Data Register 1F0h Command Register 1F7h Sector Count Register 1F2hCylinder High Register 1F5h Cylinder Low Register 1F4h Status Register 1F7h BSY Drdy DWF DSC DRQ Corr IDX ERR 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 Word Content Description Xxxx 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 Buffer E4h Read Long 22hwith retry, 23h without retry Read Multiple Command C4h Read Native Max Address F8h Read Sectors 20hwith retry, 21hwithout retry Read Verify Sectors 40hwith retry, 41hwithout retry Recalibrate 1xhSeek 7xh Set Features EFh Mode Inputs LBANormal outputs BSY Drdy DRQ ERR Description Set Multiple Mode C6h Sleep 99h, E6h Smart disable operation D9h Standby 96h,E2hSmart B0h Smart enable/disable attribute autosave D2h Smart enable operations D8hSmart execute off-line immediate D4h Smart read data D0h Byte Descriptions Value Definition Off-line data collection capability Smart capability Smart read log sector D5hSmart return status DAh Smart save attribution value D3h Standby 96h, E2h Standby Immediate 94h, E0hWrite Buffer E8h Write DMA CAh Write Multiple Command C5h Write Sectors 30hwith retry, 31hwithout retry SpinPoint V40 Product Manual Reset Response Error PostingProgramming Requirements Command Error Register Status Register BBK Power Conditions Sleep modeStandby mode Idle mode Normal mode PIO Data in Commands Protocol Overview PIO Data Out Commands PIO Read CommandPIO Read Aborted Command PIO Write Command PIO Write Aborted CommandBSY=0 DRDY=1 BSY=1 BSY=0 DRQ=1 BSY=1 DRQ=0 Non-Data Commands DMA Data Transfer Commands Aborted DMA Command Initialize DMA Reset DMA Status BSY=0 BSY=1BSY=1 BSY=0 Timing Register transfers DIOR-/DIOW Write PIO timing parameters Mode PIO data transfers Addr valid See note T1 t2 DIOR-/DIOW Multiword DMA data transfer DIOR-/DIOW Multiword DMA timing parameters Mode Ultra DMA data transfer Initiating an Ultra DMA data in burst Ultra DMA data burst timing requirements 19Ultra DMA data burst timing requirements Sustained Ultra DMA data in burst 5Sustained Ultra DMA data in burst Host pausing an Ultra DMA data in burst 6Host pausing an Ultra DMA data in burst Device terminating an Ultra DMA data in burst 7Device terminating an Ultra DMA data in burst 100 Host terminating an Ultra DMA data in burst 8Host terminating an Ultra DMA data in burst Initiating an Ultra DMA data out burst 9Initiating an Ultra DMA data out burst 102 Sustained Ultra DMA data out burst 10Sustained Ultra DMA data out burst Device pausing an Ultra DMA data out burst 11Device pausing an Ultra DMA data out burst 104 Host terminating an Ultra DMA data out burst 12Host terminating an Ultra DMA data out burst Device terminating an Ultra DMA data out burst 13Device terminating an Ultra DMA data out burst 106 Maintenance Precautions Service And RepairGeneral Information