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Xilinx manual Board Design Considerations, 11ML561 Revision a PCB Stack-Up

Models: ML561

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Board Design Considerations

For Write data and terminations at the memory, if the trace length from the receiver pin to the termination resistor can be guaranteed to be within 0.3 inches, then the fly-by termination scheme is implemented. Otherwise, the non-fly-by termination topology is implemented for Write data at the memory end.

The physical dimensions of the raw PCB are 12.75 inches x 11.75 inches. With the overhangs due to edge connectors, the actual size of the fully assembled board is approximately 13 inches x 12 inches, with 1.5 inches height allowance for the DIMM modules. This 14-layer board has 6 signal layers, 4 GND layers, and 4 power planes and uses Polyclad 370HR material for lead-free assembly. Figure 3-11shows a stack-up diagram of the ML561 Revision A PCB.

Refer to UG203, Virtex-5 PCB Designer’s Guide for more information on the PCB design using Virtex-5 devices.

73.90 ±7 mils

1.0 oz, TOP, Z0 = 50Ω, width = 6 mils 3.8 mils, Er = 4.4

1.0 oz, 02_GND1

4 mils, Er = 4.4

0.5 oz, 03_INR1, Z0 = 50Ω, width = 4.5 mils 5.3 mils, Er = 4.4

1.0 oz, 04_PWR1

8 mils, Er = 4.4

0.5 oz, 05_INR2, Z0 = 50Ω, width = 4.5 mils 3.2 mils, Er = 4.4

1.0 oz, 06_GND2

3 mils, Er = 4.4

1.0 oz, 07_PWR2

3.3 mils, Er = 4.4

1.0 oz, 08_PWR3

3 mils, Er = 4.4

1.0 oz, 09_GND3

3.2 mils, Er = 4.4

0.5 oz, 10_INR5, Z0 = 50Ω, width = 4.5 mils 8 mils, Er = 4.4

1.0 oz, 11_PWR4

5.3 mils, Er = 4.4

0.5 oz, 12_INR6, Z0 = 50Ω, width = 4.5 mils 4 mils, Er = 4.4

1.0 oz, 13_GND4

3.8 mils, Er = 4.4

1.0 oz, BOTTOM, Z0 = 50Ω, width = 6 mils

UG199_c3_11_102407

Figure 3-11:ML561 Revision A PCB Stack-Up

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

37

UG199 (v1.2) April 19, 2008

Image 37

Xilinx manual Board Design Considerations, 11ML561 Revision a PCB Stack-Up

Contents

UG199 v1.2 April 19 Virtex-5 Fpga ML561 Memory Interfaces Development BoardDate Version Revision Revision HistoryTable of Contents Electrical Requirements Appendix B Bill of Materials Appendix C LCD Interface Virtex-5 Fpga ML561 User Guide About This Guide Guide ContentsAdditional Documentation Preface About This Guide Additional Support ResourcesTerminology ConventionsTypographical Online DocumentVirtex-5 Fpga ML561 User Guide About the Virtex-5 Fpga ML561 Memory Interfaces Tool Kit IntroductionIntroduction Virtex-5 Fpga ML561 Memory Interfaces Development Board2Virtex-5 Fpga ML561 Development Board Virtex-5 Fpga ML561 Memory Interfaces Development BoardIntroduction Getting Started Initial Board Check Before Applying PowerDocumentation and Reference Design CD Getting Started Applying Power to the BoardHardware Overview Hardware DescriptionHardware Description 1ML561 XC5VLX50T-FFG1136 Board Placement DiagramDDR400 Sdram Components MemoriesHardware Overview Rldram II Devices DDR2 Sdram ComponentsDDR400 and DDR2 Component Memories Memory DetailsMemory Details DDR2ODT10, DDR2RAS,CAS,WEN DDR1RAS,CAS,WEN, DDR1CKEDDR2 Sdram Dimm Dimm DDR2DIMMRAS,CAS,WE,RESETNDDR2DIMM15CNTLPAR DDR2DIMM15CNTLPARERRQdrii and Rldram II Memories QDR2R,W,DLLOFFN RS-232 External InterfacesClocks SMA Clock MHz Lvpecl ClockMHz Clock User I/Os DIP SwitchMHz System ACE Controller Oscillator GTP ClocksSeven-Segment Displays Seven-Segment Display Signal MappingLight Emitting Diodes LEDs PushbuttonsPower Measurement Header Power On or Off Slide SwitchSoft Touch Probe Points Liquid Crystal Display Connector Power Distribution Power RegulationPower Regulation 10PTH05010 Voltage Regulator Voltage RegulatorsOutput Voltage 16Manual Voltage MarginingBoard Design Considerations 11ML561 Revision a PCB Stack-Up Board Design ConsiderationsTOP 19ML561 Revision a PCB Controlled ImpedanceElectrical Requirements Power ConsumptionPower Consumed DDR400 Component Interface Total Available PowerTotal Power Consumed CurrentPower Modules Capacity Electrical Requirements 2Power Planes Voltage Regulator Module VRM PartStack-Up 3ML561 Power Plane Capacities Power ConsumptionCurrent Power Excess Device Description Quantity Power Consumed by Power PlaneElectrical Requirements 3ML561 Power Plane Capacities Current Power Excess Device Description Power Consumption 3ML561 Power Plane CapacitiesTotal Power Consumed 53.2 4ML561 Fpga Power Estimate Summary Fpga Internal Power BudgetFpga #21 Termination and Transmission Line Summaries Signal Integrity Recommendations2DDR2 Sdram Dimm Terminations Signal Fpga Driver HSTLI18 5RLDRAM II Terminations SignalHSTLIDCI18 HSTLIIDCI18Signal Integrity Recommendations Configuration Modes ConfigurationJtag Chain Configuration 1Configuration ModesJtag Port Parallel IV Cable PortSystem ACE Interface Configuration Introduction ML561 Hardware-Simulation CorrelationML561 Hardware-Simulation Correlation Test Setup1Single Trapezoid Eye Mask Definition Test Setup2Two Triangular Eye Mask Definitions for VIH and VIL Signal Integrity Correlation ResultsDDR2 Component Write Operation Signal Integrity Correlation Results2DDR2 Component Write Operation Correlation Results Measurement3DIP12 Settings Description Voltage mV Voltage mV Time ns UG199c711071007 Fpga SSTL18IIDCII DDR2 Component Read Operation5DDR2 Component Read Operation Correlation Results Time ns UG199c715071107 UG199c717071007 UG199c719071007 DDR2 DIMM, 75 Ω ODT DDR2 Dimm Write OperationNoise Margin Overshoot / Undershoot Measurement 8DIP12 Settings DescriptionUG199c722071107 UG199c724071107 UG199c726071007 UG199c729071007 10DDR2 Dimm Read Operation Correlation Results DVW % DDR2 Dimm Read OperationUG199c731071107 1800.0 1600.0 1400.0 1200.0 1000.0 UG199c735071007 UG199c737071007 Fpga HSTLI18 Qdrii Write Operation12 Qdrii Write Operation Correlation Results 800.0 600.0 400.0 200.0 000 Probe 3C7.1 at pin 1200.0 1600.0 UG199c742071107 UG199c744070907 3100.0 2600.0 2100.0 1600.0 1100.0 Fpga HSTLIDCI18 Qdrii Read Operation14QDRII Read Operation Correlation Results UG199c749071107 1900.0 1700.0 1500.0 1300.0 1100.0 UG199c753070907 UG199c755070907 Summary and Recommendations Summary and RecommendationsNoise Margin Overshoot Operation 16Summary of Worst-Case SI Characteristics How to Generate a User-Specific Fpga Ibis Model How to Generate a User-Specific Fpga Ibis ModelML561 Hardware-Simulation Correlation Fpga #1 Pinout Fpga PinoutsTable A-1FPGA #1 Pinout Signal Name Fpga #1 Clock and Reset Signals FPGA3TOFPGA1MIITXCLK FPGA2TOFPGA1MIITXCLKFPGA2TOFPGA1MIITXDATA0 FPGA3TOFPGA1MIITXDATA0Fpga #1 Pinout Table A-1FPGA #1 Pinout Signal Name Fpga #2 Pinout DDR2DIMMDQBY0B4 DDR2DIMM3CK2PDDR2DIMM3CKE0 DDR2DIMMDQBY0B5DDR2DIMMDQBY7B7 DDR2DIMMDQBY4B4DDR2DIMMDQBY4B5 DDR2DIMMDQCB07B0DDR2DIMMDQBY11B5 DDR2DIMM5CS1N DDR2DIMM5CS0NDDR2DIMMDQBY11B6 DDR2DIMM5ODT0 AA9 DDR2DIMMDQBY11B7Table A-2FPGA #2 Pinout Signal Name Fpga #2 Clock and Reset Signals Fpga #2 Pinout Table A-2FPGA #2 Pinout Signal NameFPGA2SOFTTOUCHBY1B7 FPGA2DIP0FPGA2DIP1 FPGA2SPYHOLEBK15FPGA2TXN1BK120 FPGA2USBDSRN FPGA2TXN0BK120 FPGA2USBCTSNFPGA2TXP0BK120 FPGA2USBDTRN FPGA2TXP1BK120 FPGA2USBRSTNFpga #3 Pinout Table A-3FPGA #3 Pinout Signal Name Qdrii Memory InterfaceQDR2DBY4B1 QDR2DBY0B5QDR2DBY0B6 QDR2DBY4B2QDR2QBY3B2 QDR2DBY7B6QDR2DBY7B7 QDR2QBY3B3QDR2QBY7B4 QDR2QBY6B7QDR2QBY6B8 QDR2QBY7B5RLD2DBY0B7 RLD2DQBY0B1 RLD2DBY0B5 RLD2DMBY23N RLD2DBY0B6 RLD2DQBY0B0RLD2DBY0B8 RLD2DQBY0B2 RLD2DBY1B0 RLD2DQBY0B3RLD2DQBY3B4 RLD2DQBY3B7 RLD2DQBY3B5 RLD2DQBY3B8 RLD2DQBY3B6 FPGA3RESETNINCLKTOFPGA3MGTN EXTCLKTOFPGA3N CLKTOFPGA3MGTP EXTCLKTOFPGA3PTable A-3FPGA #3 Pinout Signal Name Table B-1Bill of Materials Bill of Materials4A LDO Appendix B Bill of Materials Table B-1Bill of MaterialsVirtex-5 Fpga ML561 User Guide 117 Appendix B Bill of Materials General LCD InterfaceDisplay Hardware Design Table C-1Display Controller Specifications Parameter Hardware Schematic DiagramAppendix C LCD Interface Peripheral Device KS0713 Hardware Schematic Diagram64128EFCBC-XLP Block Diagram Table C-2 LCD Panel Controller Operation124 Controller LCD Panel Connections Figure C-5Power Supply Circuits Controller Power Supply CircuitsFigure C-6LCD Controller Initialization Flow Operation Example of the 64128EFCBC-3LPOFF Table C-5 Reference Voltage Parameters Table C-4Resistor Value SettingsReference Voltage Parameter α Table C-6Display Instructions Instruction SetSet page address Hardware Schematic Diagram Table C-6Display InstructionsEON Appendix C LCD Interface Table C-6Display InstructionsERD Read/Write Characteristics 6800 ModeDesign Examples LCD Panel Used in Full Graphics ModeDisplay Command Byte LCD Panel Used in Character ModeDisplay Data Byte Figure C-10Block RAM Organization Figure C-11LCD Character Generator Controller C D E F G H Array Connector Numbering140