Qdrii Write Operation, Fpga HSTLI18 | Xilinx ML561 instruction

R

Signal Integrity Correlation Results

QDRII Write Operation

This subsection shows the test results for the QDR2_D_BY0_B5 signal from FPGA3 (U34) to QDRII memory (U35) measured at 300 MHz (600 Mb/s), where the unit interval (UI) = 167 ns.

49.0 ohms

VCC0V7…

5.283 ps

0.9V

0.035 in

R1586

QDR2_D_BY0_B5

49.9 ohms

TL6

28.5 ohms

49.0 ohms

45.1 ohms

49.8 ohms

70.8 ohms

28.5 ohms

4.404 ps

71.0 ohms

11.902 ps

520.665 ps

4.473 ps

U35.G11

0.027 in

27.482 ps

0.079 in

7.862 ps

3.333 in

16.339 ps

0.028 in

U34.M31

QDR2_D_BY0_B5 AutoPadstk_3

QDR2_D_BY0_B5

AutoPadstk_19 QDR2_D_BY0_B5

AutoPadstk_3

QDR2_D_BY0_B5

TL2

TL4

TL5

TL7

TL8

TL3

TL1

K7R323684M_1.8V

Virtex-5 FPGA

D5

QDR2_D_BY0_B5

QDR2_D...

QDR2_D...

C7

QDR2_D...

QDR2_D...

QDR2_D...

QDR2_D...

22.9 fF

177.3 fF

22.9 fF

22.9 fF

500.0 fF

58.1 fF

399.1 fF

UG199_c7_39_070907

Figure 7-39:

Post-Layout IBIS Schematics of QDRII Write Data Bit (QDR2_D_BY0_B5)

Table 7-11:

Circuit Elements of QDRII Write Data bit (QDR2_D_BY0_B5)

Element

Designation

Description

Driver

U34.M31

FPGA HSTL_I_18

Receiver

U35.G11

QDRII memory

Probe Point

C7

Via under Memory

PCB Termination

R1586

External termination at memory

Trace Length

TL 2, 5, 8, 1

3.46 inches

Table 7-12:QDRII Write Operation Correlation Results

DVW

ISI

Noise Margin

Overshoot / Undershoot

Measurement

(VIH + VIL) = Total

Margin

(% UI)

(% UI)

(% of VREF)

(% of VREF)

Hardware at probe

1.40 ns

(50 + 70) = 120 ps (7.2%)

(340 + 400) = 740 mV

(450 + 400) = 850 mV

point

(84.1%)

(82.2%)

(94.5%)

Simulation correlation

1.39 ns

(136 + 91) = 227 ps (13.6%)

(344 + 398) = 742 mV

(483 + 452) = 935 mV

slow-weak corner

(83.5%)

(82.5%)

(103.9%)

Correlation Delta:

10 ps

107 ps (6.4%)

2 mV (0.3%)

85 mV (9.4%)

HW vs. Simulation

(0.6%)

Extrapolation at IOB

1.38 ns

(172 + 141) = 313 ps

(329 + 358) = 687 mV

(400 + 361) = 761 mV

slow-weak corner

(83%)

(18.8%)

(76.3%)

(84.5%)

Extrapolation at IOB

1.49 ns

(126 + 91) = 217 ps (13.0%)

(353 + 376) = 729 mV

(156 + 30) = 186 mV

fast-strong corner

(89%)

(81.0%)

(20.7%)

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

81

UG199 (v1.2) April 19, 2008

Image 81

Xilinx ML561 manual Fpga HSTLI18, Qdrii Write Operation Correlation Results

Contents

UG199 v1.2 April 19 Virtex-5 Fpga ML561 Memory Interfaces Development Board Date Version Revision Revision History Table of Contents Electrical Requirements Appendix B Bill of Materials Appendix C LCD Interface Virtex-5 Fpga ML561 User Guide Guide Contents About This GuideAdditional Documentation Preface About This Guide Additional Support Resources Terminology ConventionsTypographical Online Document Virtex-5 Fpga ML561 User Guide About the Virtex-5 Fpga ML561 Memory Interfaces Tool Kit Introduction Introduction Virtex-5 Fpga ML561 Memory Interfaces Development Board 2Virtex-5 Fpga ML561 Development Board Virtex-5 Fpga ML561 Memory Interfaces Development Board Introduction Initial Board Check Before Applying Power Getting StartedDocumentation and Reference Design CD Getting Started Applying Power to the Board Hardware Overview Hardware Description Hardware Description 1ML561 XC5VLX50T-FFG1136 Board Placement Diagram Memories DDR400 Sdram ComponentsHardware Overview Rldram II Devices DDR2 Sdram Components Memory Details DDR400 and DDR2 Component MemoriesMemory Details DDR2ODT10, DDR2RAS,CAS,WEN DDR1RAS,CAS,WEN, DDR1CKE DDR2 Sdram Dimm Dimm DDR2DIMMRAS,CAS,WE,RESETNDDR2DIMM15CNTLPAR DDR2DIMM15CNTLPARERR Qdrii and Rldram II Memories QDR2R,W,DLLOFFN External Interfaces RS-232Clocks MHz Lvpecl Clock SMA ClockMHz Clock User I/Os DIP SwitchMHz System ACE Controller Oscillator GTP Clocks Seven-Segment Displays Seven-Segment Display Signal MappingLight Emitting Diodes LEDs Pushbuttons Power On or Off Slide Switch Power Measurement HeaderSoft Touch Probe Points Liquid Crystal Display Connector Power Regulation Power DistributionPower Regulation 10PTH05010 Voltage Regulator Voltage Regulators Output Voltage 16Manual Voltage Margining Board Design Considerations 11ML561 Revision a PCB Stack-Up Board Design Considerations TOP 19ML561 Revision a PCB Controlled Impedance Electrical Requirements Power Consumption Power Consumed DDR400 Component Interface Total Available PowerTotal Power Consumed Current Power Modules Capacity 2Power Planes Voltage Regulator Module VRM Part Electrical RequirementsStack-Up 3ML561 Power Plane Capacities Power ConsumptionCurrent Power Excess Device Description Quantity Power Consumed by Power Plane Electrical Requirements 3ML561 Power Plane Capacities Power Consumption 3ML561 Power Plane Capacities Current Power Excess Device DescriptionTotal Power Consumed 53.2 Fpga Internal Power Budget 4ML561 Fpga Power Estimate SummaryFpga #21 Termination and Transmission Line Summaries Signal Integrity Recommendations 2DDR2 Sdram Dimm Terminations Signal Fpga Driver HSTLI18 5RLDRAM II Terminations SignalHSTLIDCI18 HSTLIIDCI18 Signal Integrity Recommendations Configuration Modes Configuration Jtag Chain Configuration 1Configuration ModesJtag Port Parallel IV Cable Port System ACE Interface Configuration Introduction ML561 Hardware-Simulation Correlation ML561 Hardware-Simulation Correlation Test Setup 1Single Trapezoid Eye Mask Definition Test Setup 2Two Triangular Eye Mask Definitions for VIH and VIL Signal Integrity Correlation Results DDR2 Component Write Operation Signal Integrity Correlation Results2DDR2 Component Write Operation Correlation Results Measurement 3DIP12 Settings Description Voltage mV Voltage mV Time ns UG199c711071007 DDR2 Component Read Operation Fpga SSTL18IIDCII5DDR2 Component Read Operation Correlation Results Time ns UG199c715071107 UG199c717071007 UG199c719071007 DDR2 DIMM, 75 Ω ODT DDR2 Dimm Write Operation Noise Margin Overshoot / Undershoot Measurement 8DIP12 Settings Description UG199c722071107 UG199c724071107 UG199c726071007 UG199c729071007 10DDR2 Dimm Read Operation Correlation Results DVW % DDR2 Dimm Read Operation UG199c731071107 1800.0 1600.0 1400.0 1200.0 1000.0 UG199c735071007 UG199c737071007 Qdrii Write Operation Fpga HSTLI1812 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 Qdrii Read Operation Fpga HSTLIDCI1814QDRII 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 Model ML561 Hardware-Simulation Correlation Fpga #1 Pinout Fpga Pinouts Table A-1FPGA #1 Pinout Signal Name Fpga #1 Clock and Reset Signals FPGA3TOFPGA1MIITXCLK FPGA2TOFPGA1MIITXCLKFPGA2TOFPGA1MIITXDATA0 FPGA3TOFPGA1MIITXDATA0 Fpga #1 Pinout Table A-1FPGA #1 Pinout Signal Name Fpga #2 Pinout DDR2DIMMDQBY0B4 DDR2DIMM3CK2PDDR2DIMM3CKE0 DDR2DIMMDQBY0B5 DDR2DIMMDQBY7B7 DDR2DIMMDQBY4B4DDR2DIMMDQBY4B5 DDR2DIMMDQCB07B0 DDR2DIMMDQBY11B5 DDR2DIMM5CS1N DDR2DIMM5CS0NDDR2DIMMDQBY11B6 DDR2DIMM5ODT0 AA9 DDR2DIMMDQBY11B7 Table A-2FPGA #2 Pinout Signal Name Fpga #2 Clock and Reset Signals Fpga #2 Pinout Table A-2FPGA #2 Pinout Signal Name FPGA2SOFTTOUCHBY1B7 FPGA2DIP0FPGA2DIP1 FPGA2SPYHOLEBK15 FPGA2TXN1BK120 FPGA2USBDSRN FPGA2TXN0BK120 FPGA2USBCTSNFPGA2TXP0BK120 FPGA2USBDTRN FPGA2TXP1BK120 FPGA2USBRSTN Fpga #3 Pinout Table A-3FPGA #3 Pinout Signal Name Qdrii Memory Interface QDR2DBY4B1 QDR2DBY0B5QDR2DBY0B6 QDR2DBY4B2 QDR2QBY3B2 QDR2DBY7B6QDR2DBY7B7 QDR2QBY3B3 QDR2QBY7B4 QDR2QBY6B7QDR2QBY6B8 QDR2QBY7B5 RLD2DBY0B7 RLD2DQBY0B1 RLD2DBY0B5 RLD2DMBY23N RLD2DBY0B6 RLD2DQBY0B0RLD2DBY0B8 RLD2DQBY0B2 RLD2DBY1B0 RLD2DQBY0B3 RLD2DQBY3B4 RLD2DQBY3B7 RLD2DQBY3B5 RLD2DQBY3B8 RLD2DQBY3B6 FPGA3RESETNINCLKTOFPGA3MGTN EXTCLKTOFPGA3N CLKTOFPGA3MGTP EXTCLKTOFPGA3P Table A-3FPGA #3 Pinout Signal Name Table B-1Bill of Materials Bill of Materials 4A LDO Appendix B Bill of Materials Table B-1Bill of Materials Virtex-5 Fpga ML561 User Guide 117 Appendix B Bill of Materials LCD Interface GeneralDisplay Hardware Design Hardware Schematic Diagram Table C-1Display Controller Specifications ParameterAppendix C LCD Interface Peripheral Device KS0713 Hardware Schematic Diagram 64128EFCBC-XLP Block Diagram Table C-2 LCD Panel Controller Operation 124 Controller LCD Panel Connections Figure C-5Power Supply Circuits Controller Power Supply Circuits Figure C-6LCD Controller Initialization Flow Operation Example of the 64128EFCBC-3LP OFF Table C-4Resistor Value Settings Table C-5 Reference Voltage ParametersReference Voltage Parameter α Table C-6Display Instructions Instruction Set Set page address Hardware Schematic Diagram Table C-6Display Instructions EON Appendix C LCD Interface Table C-6Display Instructions ERD Read/Write Characteristics 6800 Mode Design Examples LCD Panel Used in Full Graphics Mode Display Command Byte LCD Panel Used in Character Mode Display Data Byte Figure C-10Block RAM Organization Figure C-11LCD Character Generator Controller C D E F G H Array Connector Numbering 140