Intel 317698-001 manual Power Supplies for the 82575 Ethernet Controller Controllers

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82575 Ethernet Controller Design Guide

External BMC

SMBCLK

SMBD

SMBALRT_N

NCSI_RXD[1:0]

NCSI_CRS_DV

NCSI_TXD[1:0]

NCSI_TX_EN

NCSI_CLK_IN

NCSI_CLK_OUT

SMB (82575)

(Configuration traffic in NCSI/

SMB Mode)

NCSI

(82575)

(All traffic in NCSI Mode and pass-thru traffic in NCSI/SMB Mode)

Figure 2. External BMC Connections with NC-SI and SMB

The 82575 Ethernet Controller also supports the DMTF protocol.

For more information about NC-SI and DMTF, see the 82575 Family System

Management Application Note.

3.4Power Supplies for the 82575 Ethernet Controller Controllers

The 82575 Ethernet Controller Gigabit Ethernet Controllers require three power rails:

3.3V, 1.8 V and 1.0 V. (See the 82575 Ethernet Controller Product Datasheet for power requirements.) A central power supply can provide all the required voltage sources, or the power can be derived from the 3.3 V supply and regulated locally using external regulators. If the LAN wake capability will be used, all voltages must remain present during system power down. Local regulation of the LAN voltages from system 3.3 Vmain and 3.3 Vaux voltages is recommended.

External voltage regulators need to generate the proper voltage, supply current requirements (with adequate margin), and provide the proper power sequencing.

Due to the current demand, a Switching Voltage Regulator (SVR) is highly recommended for the 1.0 V power rail. Figure 2 shows an example of a compact, low- part count, SVR that can be used for both the 1.0 V and 1.8 V power supplies.

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Contents Design Guide Intel 82575 Gigabit Ethernet ControllerPage Contents Design and Layout Checklists Date Revision Description Revision HistoryThis page intentionally left blank Scope IntroductionReference Documents Physical Layer Features Other PCI Express SignalsLink Width Configuration PCI Express Port Connection to the DeviceLane Reversal Polarity InversionLane Reversal supported modes PCI Express RoutingThis page left intentionally blank General Design Considerations for Ethernet Controllers Ethernet Component Design GuidelinesClock Source Magnetics for 1000 BASE-TModules for 1000 BASE-T Ethernet Designing with the 82575/EB/ES Gigabit Ethernet ControllerThird-Party Magnetics Manufacturers Manufacturer Part NumberPCI Function # Select PCI/LAN Function IndexFunction Default Control options Symbol Ball # Name and functionSerial Eeprom General RegionsEeprom Map Information SPI EEPROMs for 82575 Ethernet Controller ControllerManufacturer Size Manufacturers Part Number Flash EeupdateFlash Erase Control Flash Write ControlSMBus and NC-SI Flash Device InformationManufacturer Device Power Supplies for the 82575 Ethernet Controller Controllers Example Switching Voltage Regulator for 1.0 V and 1.8 Vout=1.0v 2A 1 82575 Ethernet Controller Power SequencingY 2 82575 Ethernet Controller Device Power Supply Filtering Using Regulators With Enable PinsPower Rail 7uF or 1uF 10uF PCIe Power Management Power ManagementL0s D0u D0a 4.2 82575 Ethernet Controller Power ManagementAuto Cross-over for MDI and MDI-X resolution 82575 Ethernet Controller Device Test CapabilityPHY Functionality Using SmartSpeed Low-Power Link UpSmartspeed Flow ControlLink Energy Detect Polarity Correction25.6 Reg Auto-Negotiation differences between PHY, SerDes and Sgmii Copper PHY Link ConfigurationSerDes-Detect Mode PHY is active Copper/Fiber SwitchInternal PHY-to-SerDes Transition Device DisableBios handling of Device Disable Software-Definable Pins SDPsEthernet Controller Design Guide Frequency Control Component Types Frequency Control Device Design ConsiderationsQuartz Crystal Fixed Crystal OscillatorCeramic Resonator Programmable Crystal OscillatorsTemperature Stability and Environmental Requirements Vibrational ModeCrystal Selection Parameters Nominal FrequencyLoad Capacitance Calibration ModeEquivalent Series Resistance Shunt CapacitanceDrive Level AgingTemperature Changes Reference Crystal SelectionCircuit Board This page is intentionally left blank Oscillator Solution Specifications Symbol Parameter Units Min Typical MaxOscillator Support VGG=0.6V Rpar =100MΩ Cpar =20pF Guidelines for Component Placement Ethernet Component Layout GuidelinesLayout Considerations for 82575 Ethernet Controllers LAN Layout for Integrated Magnetics Crystal layout considerations Crystals and OscillatorsCrystal Board Stack Up RecommendationsTrace Routing Differential Pair Trace Routing for 10/100/1000 DesignsSignal Trace Geometry for 1000 BASE-T Designs Signal Termination and CouplingTrace Length and Symmetry for 1000 BASE-T Designs Signal Detect Signal IsolationRouting 1.8 V to the Magnetics Center Tap Impedance DiscontinuitiesTraces for Decoupling Capacitors Power and Ground PlanesTroubleshooting Common Physical Layout Issues Physical Layer Conformance TestingThermal Design Considerations Conformance Tests for 10/100/1000 Mbps DesignsEthernet Controller Design Guide Reference Schematics Design and Layout ChecklistsSymbol Thermal Management

317698-001 specifications

The Intel 317698-001 is a prominent and highly regarded component in the realm of computer hardware. This product is part of Intel's extensive portfolio, designed primarily for enhancing computing performance, efficiency, and reliability. It is typically associated with server motherboards and is known for its robust architecture, making it ideal for enterprise-level applications.

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