Seagate ST3500071FC, ST3400071FC manual Signal characteristics

Page 75

9.5.12Device control codes

The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at power up to determine the link rate on the Fibre Channel ports. Both ports run at the same rate. If the backpanel does not connect to these lines, the drive has 10K ohm pull up resistors that default the device control code to 7 (1.0625 GHz). Table 33 lists the supported codes.

Table 33:

Device control code values

 

 

 

 

 

2 (pin 17)

 

1 (pin 18)

0 (pin 39)

Definition

 

 

 

 

 

0

 

0

0

Reserved for Power failure warning.

 

 

 

 

 

0

 

0

1

Reserved for auto negotiation of link rate.

 

 

 

 

 

0

 

1

0

Reserved.

 

 

 

 

 

0

 

1

1

Reserved.

 

 

 

 

 

1

 

0

0

Reserved.

 

 

 

 

 

1

 

0

1

Reserved.

 

 

 

 

 

1

 

1

0

2.125 GHz operation on both ports.

 

 

 

 

 

1

 

1

1

1.0625 GHz operation on both ports.

 

 

 

 

 

9.6Signal characteristics

This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 29 on page 62 for signal type and signal name information.

9.6.1TTL input characteristics

Table 34 provides the TTL characteristics.

Table 34: TTL characteristics

State

Voltage

Current

 

 

 

 

Input high

1.9

< VIH < 5.5V

IIH = ±500nA max.

 

 

 

Input low

-0.5V < VIL < 0.9V

IOL = ±500nA max.

 

 

 

 

Output high (-EN Bypass A, B)

2.4

< VOH < 5.25V

IOH < -3mA

 

 

 

Output low (-EN Bypass A, B)

VOL < 0.5V

IOL < 3mA

 

 

 

 

Output high (-Parallel ESI)

2.4

< VOH < 0.9 VCC

IOH < -2.4mA

 

VOH > 0.9VCC

IOH < -500µA

Output low (-Parallel ESI)

0 < VOL < .45V

IOL < 2.4mA

 

 

 

 

Output high (all other outputs)

2.4

< VOH < 0.9 VCC

IOH < -1.6mA

 

VOH > 0.9VCC

IOH < -500µA

Output low (all other outputs)

0 < VOL < .45V

IOL < 1.6mA

 

 

 

 

NL35 Series FC Product Manual, Rev. D

67

Image 75
Contents ST3500071FC ST3400071FC NL35 Series FCPage Contents Defect and error management InstallationInterface requirements Seagate Technology support services NL35 Series FC Product Manual, Rev. D NL35 Series family disc drive List of FiguresViii NL35 Series FC Product Manual, Rev. D NL35 Series family disc drive ScopeNL35 Series FC Product Manual, Rev. D Electromagnetic susceptibility Applicable standards and reference documentationStandards Electromagnetic compatibilityEnvironmental protection Electromagnetic complianceFibre Channel Interface Manual Reference documentsNL35 Series FC Product Manual, Rev. D General description Standard features Formatted capacities Media descriptionPerformance ReliabilityProgrammable drive capacity Factory-installed accessoriesFactory-installed options User-installed accessoriesAccess time Performance characteristicsInternal drive characteristics Seek performance characteristicsGHz Generalized performance characteristicsStart/stop time Prefetch/multi-segmented cache controlCache operation Prefetch operation Caching write dataPage NL35 Series FC Product Manual, Rev. D Error rates Reliability specificationsSeek errors Reliability and serviceRecoverable Errors Unrecoverable errorsPreventive maintenance Mean Time Between Failure MtbfHot plugging the drive Milliseconds 4 S.M.A.R.TControlling S.M.A.R.T Performance impactParameter Code Description Temperature Log page 0DhPredictive failures Thermal monitorImplementation State of the drive prior to testingDrive Self Test DST DST Failure DefinitionExtended test Function Code 010b Invoking DSTShort and extended tests Short test Function Code 001bProduct repair and return information Product warrantyAbort ShippingST3500071FC/ST3400071FC DC power requirements Physical/electrical specificationsAC power requirements DC power requirementsGeneral DC power requirement notes Power sequencingConducted noise immunity Power dissipation Effective altitude sea level TemperatureEnvironmental limits Relative humidityPackage size Packaged/product weight Drop height Shock and vibrationShock Recommended mounting Vibration Air cleanlinessTypical idle mode sound power ST3500071FC and ST3400071FC Corrosive environmentAcoustics Mounting configuration dimensions Mechanical specificationsNL35 Series FC Product Manual, Rev. D Defect and error management Drive internal defects/errorsDrive error recovery procedures 108.3 FC-AL system errors Background Media ScanMedia Pre-Scan NL35 Series FC Product Manual, Rev. D Installation Drive ID/option selectionDrive orientation Air flow CoolingGrounding Drive mountingNL35 Series FC Product Manual, Rev. D Type of frame Link service FC-AL featuresFibre Channel link service frames Link services supportedFC Scsi FCP response codes Fibre Channel task management functionsFibre Channel Scsi FCP task management functions Fibre Channel task management responsesFibre Channel port login NPort login Plogi payloadBytes Process Login Plri payload Fibre Channel port login acceptNPort Login Accept ACC payload Fibre Channel Process LoginFabric Login Flogi payload Fibre Channel Process Login AcceptProcess Login Accept ACC payload Fibre Channel fabric loginFabric Login Accept ACC payload Fibre Channel fabric accept loginOption Supported Dual port supportFibre Channel Arbitrated Loop options FC-AL options supportedScsi commands supported Supported commandsCommand code Supported Command name Supported commands Supported commands Supported commands Supported commands Bytes Data hex Mode Sense dataInquiry data NL35 Series inquiry dataPage DEF CHG NL35 Series FC Product Manual, Rev. D Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionPhysical characteristics FC-AL physical interfacePhysical description Connector requirements Part description Positions Part number FeaturesElectrical description Pin Signal name Signal type Pin descriptionsFC-SCA pin descriptions Power Fault LED OutFC-AL transmitters and receivers Active LED Out conditions Enable port bypass signalsNormal command activity LED status Active LED Out11 SEL6 through SEL0 ID lines Motor start control signalsParallel Enclosure Services Interface ESI Motor start controlsSetting Arbitrated loop physical address Alpa valuesHex Dec Signal characteristics Differential Pecl input characteristics LED driver signalsLED drive signal Differential Pecl output characteristicsLink rate GHz Eye diagram data valuesNL35 Series FC Product Manual, Rev. D Technical Support Seagate Technology support servicesInternet Presales SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Numerics IndexFAN Flogi Plogi Page See also cooling