Manuals / Intel / Computer Equipment / Computer Hardware

Intel 31154 manual Power Considerations, Analog Power Pins

Models: 31154

1 72

Download 72 pages 37.2 Kb

Page 57

Image 57

P_VCCA Filter

S_VCCA Filter

	Power Considerations
Power Considerations	8

8.1Analog Power Pins

The analog voltage pins S_VCCA and P_VCCA require a low-pass filter. This is implemented by connecting the P_VCCA and S_VCCA pins to a 10 Ω series resistor and 0.01 ∝F and 4.7 ∝F (low- ESR) capacitors in parallel going to ground. The opposite end of the 10 Ω resistor is connected to the 1.3 V supply. This arrangement is shown in Figure 18 and Figure 19.

When implementing these circuits, use the following filter circuit layout and component recommendations:

1. Low-ESR, polymerized organic capacitors are recommended for 4.7 ∝F.

2. The 0.01 ∝F capacitor must be a X5R, X7R, or COG.

3. The capacitors must be placed as close as possible to associated pins to minimize inductance.

4. The connections from the P_VCCA and S_VCCA must be kept as short as possible.

Figure 18.

Figure 19.

Intel® 31154 133 MHz PCI Bridge Design Guide Design Guide

Page 57

Image 57

Intel manual Power Considerations, Analog Power Pins, Intel 31154 133 MHz PCI Bridge Design Guide Design Guide

Contents

Design Guide Intel 31154 133 MHz PCI Bridge Design GuideApril Intel 31154 133 MHz PCI Bridge Design Guide Contents ContentsIntel 31154 133 MHz PCI Bridge Design Guide Tables FiguresContents Intel 31154 133 MHz PCI Bridge Design GuideIntel 31154 133 MHz PCI Bridge Design Guide ContentsContents Revision HistoryIntel 31154 133 MHz PCI Bridge Design Guide Date1.1 Terminology and Definitions About This DocumentAbout This Document Terminology and Definition Sheet 1 ofAbout This Document Table 1. Terminology and Definition Sheet 2 ofIntel 31154 133 MHz PCI Bridge Design Guide Design Guide TermIntroduction2 PCI-to-PCI Bridge Configurations2.1 Product Overview IntroductionFeatures List 2.2 Features ListPCI Local Bus Specification, Revision 2.3 compliant PCI-to-PCI Bridge Architecture Specification, Revision 1.2 compliantPCI Local Bus Specification, Revision 2.3 Related External SpecificationsPCI-to-PCI Bridge Architecture Specification, Revision PCI Bus Power Management Interface Specification, RevisionTHIS PAGE INTENTIONALLY LEFT BLANK IntroductionIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Package Information Package InformationIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Package Information Figure 2. Intel 31154 133 MHz PCI Bridge PackageIntel 31154 133 MHz PCI Bridge Design Guide Design Guide BOTTOM VIEWPackage Information Figure 3. Intel 31154 133 MHz PCI Bridge Ball Map-Top View, Left SideIntel 31154 133 MHz PCI Bridge Design Guide Design Guide AC VSSIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Package Information13 14 15 16 17 18 19 20 VCCATotal Signal Count 3.1 Total Signal CountSignals Package InformationPackage Information THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Terminations Terminations4Pull-Up/Pull-Down Terminations Sheet 1 of Intel 31154 133 MHz PCI Bridge Design Guide Design GuideSignal Pull-Up/Pull-Down Terminations Sheet 2 ofSecondary PCI Signals TerminationsSignal Pull-Up/Pull-Down Terminations Sheet 3 ofTerminations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideSignal Pull-Up/Pull-Down Terminations Sheet 4 ofTerminations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideSignal Pull-Up/Pull-Down Terminations Sheet 5 ofresistor default TerminationsSignal Pull-Up/Pull-Down Terminations Sheet 6 ofTerminations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideSignal Pull-Up/Pull-Down Terminations Sheet 7 of“Power Sequencing” on page “Power Sequencing” on pageSignal Pull-Up/Pull-Down Terminations Sheet 8 ofTerminations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideSignal Pull-Up/Pull-Down Terminations Sheet 9 ofTerminations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideTerminations THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide 5.1 PCI/PCI-X Voltage Levels PCI/PCI-X Interface5.2 Interrupt Routing PCI/PCI-X Interface5.3.1 Primary IDSEL Line 5.3 IDSEL Lines5.3.2 Secondary IDSEL Lines IDSEL Mapping5.3.3 Secondary IDSEL Masking 5.5 Opaque Memory Region Enable5.4 CompactPCI* Hot Swap Mode Select 5.3.4 Secondary Clock Control5.6.1 Primary PCI Clocking Mode 5.6 PCI-X Initialization Clocking Modes5.6.2 Secondary PCI Clocking Mode PCI/PCI-X InterfaceSecondary Bus Frequency Initialization PCI-X Clocking ModesPCI/PCI-X Interface Intel 31154 133 MHz PCI Bridge Design Guide Design GuidePCI-X Initialization Pattern 5.6.3 Primary-to-Secondary Frequency LimitsPCI/PCI-X Interface Intel 31154 133 MHz PCI Bridge Design Guide Design GuideRouting Guidelines Routing GuidelinesIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Figure 6. Crosstalk Effects on Trace Distance and Height 6.1 CrosstalkRouting Guidelines Intel 31154 133 MHz PCI Bridge Design Guide Design Guide6.2 EMI Considerations Figure 7. PCB Ground Layout Around ConnectorsRouting Guidelines Intel 31154 133 MHz PCI Bridge Design Guide Design Guide6.3.1 Decoupling Recommendations 6.3 Power Distribution and DecouplingTable 11. Intel 31154 133 MHz PCI Bridge Decoupling Recommendations Routing Guidelines6.4 Trace Impedance Routing GuidelinesIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Routing Guidelines THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide PCI-X Layout Guidelines PCI-X Layout GuidelinesAdd-in Card Routing Parameters Intel 31154 133 MHz PCI Bridge Design Guide Design Guide7.1 PCI Clock Layout Guidelines PCI-X Layout GuidelinesIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Intel ########%,%!#%# Notes -3%%%PCI-X Slot Guidelines 7.2 PCI-X Topology Layout GuidelinesPCI-X Layout Guidelines Intel 31154 133 MHz PCI Bridge Design Guide Design Guide7.2.1 Single Slot at 133 MHz Wiring Lengths for 133 MHz SlotFigure 9. Single-Slot Point-to-Point Topology PCI-X Layout GuidelinesPCI-X Layout Guidelines Wiring Lengths for Embedded 133 MHz DesignIntel 31154 133 MHz PCI Bridge Design Guide Design Guide B3058-01Wiring Lengths for 100 MHz Dual-Slot Figure 11. Dual-Slot Configuration7.2.2 Dual-Slot at 100 MHz PCI-X Layout GuidelinesPCI-X Layout Guidelines Wiring Lengths for Embedded 100 MHz DesignIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Lower AD Bus7.2.3 Quad-Slots at 66 MHz Table 18. Wiring Lengths for 66 MHz Quad-Slot Sheet 1 ofFigure 13. Quad-Slots 66 MHz Topology PCI-X Layout GuidelinesPCI-X Layout Guidelines Table 18. Wiring Lengths for 66 MHz Quad-Slot Sheet 2 ofIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Lower AD BusWiring Lengths for Embedded 66 MHz Design Figure 14. Embedded Intel 31154 133 MHz PCI Bridge Wiring for 66 MHz7.2.3.1 Embedded Intel 31154 133 MHz PCI Bridge Application at 66 MHz PCI-X Layout Guidelines7.2.4 PCI-X at 33 MHz 7.2.4.1 Embedded PCI-X Specification PICMG 1.2 Overview7.2.4.2 PICMG 1.2 System Overview PCI-X Layout GuidelinesFigure 15. An Example of an ePCI-X System PCI-X Layout GuidelinesIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Figure 16. PCI-X Data Bus PICMG 1.2 Style Backplane Table 20. Wiring Lengths for PICMG 1.2 BackplanePCI-X Layout Guidelines Intel 31154 133 MHz PCI Bridge Design Guide Design GuideFigure 17. PCI-X Clock PICMG 1.2 Style Backplane Table 21. PCI-X Clock Wiring Lengths for PICMG BackplaneSlot1 SlotNPCI-X Layout Guidelines THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide 8.1 Analog Power Pins Power ConsiderationsPower Considerations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideIntel 133 MHz PCI Bridge 8.2 Power SequencingPower Considerations Intel 31154 133 MHz PCI Bridge Design Guide Design GuideCustomer Reference Board Figure 21. Intel IQ31154 Customer Reference Board Block DiagramIntel 133 MHz PCI BridgeCustomer Reference Board Stackup Customer Reference BoardIntel 31154 133 MHz PCI Bridge Design Guide Design Guide 10.1 Probing PCI-X Signals Debug Connectors and Logic Analyzer Connectivity10Debug Connectors and Logic Analyzer Connectivity Intel 31154 133 MHz PCI Bridge Design Guide Design GuideLogic Analyzer Pod Debug Connectors and Logic Analyzer ConnectivityIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Debug Connectors and Logic Analyzer Connectivity Logic Analyzer PodIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Logic Analyzer Pod Debug Connectors and Logic Analyzer ConnectivityIntel 31154 133 MHz PCI Bridge Design Guide Design Guide AD15Debug Connectors and Logic Analyzer Connectivity Logic Analyzer PodIntel 31154 133 MHz PCI Bridge Design Guide Design Guide PCI-X Signal Name Debug Connectors and Logic Analyzer ConnectivityLogic Analyzer Pod Intel 31154 133 MHz PCI Bridge Design Guide Design GuideThe recommended placement of the Mictor connectors is at either end of the bus segment. The Mictors are placed at the end of a stub that must be as short as possible, and are then daisy-chained off either end of the bus. When there is not enough room to place the Mictors at least 0.5 from the target, an alternate method can be used. This alternate method is to place the logic analyzer termination circuitry on the target and then extend the etch from the end of the termination circuitry over to the Mictor connectors. The connection from the Mictors to the logic analyzer must then be made with the E5351A. The E5346A contains the logic analyzer termination circuitry, and the E5351A does not Debug Connectors and Logic Analyzer ConnectivityLogic Analyzer Pod Intel 31154 133 MHz PCI Bridge Design Guide Design GuideDebug Connectors and Logic Analyzer Connectivity THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide Thermal Solutions Thermal SolutionsTable 29. Operational Power Maximum PowerThermal Solutions THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide 12.1 Related Documents References12References Table 30. Design Reference MaterialReferences THIS PAGE INTENTIONALLY LEFT BLANKIntel 31154 133 MHz PCI Bridge Design Guide Design Guide