Chapter 7: ML561 Hardware-Simulation Correlation

R

 

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

600.0

 

 

 

 

 

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

Probe 6:U35.G11 (at die)

 

 

 

-200.0

 

 

 

 

 

0.000

400.0

800.0

1200.0

1600.0

Time (ps)

UG199_c7_44_070907

300 MHz, Slow, PRBS6, 83% UI

Cursor 1: 699.1 mV, 61.3 ps

Cursor 2: 801.0 mV, 1.4433 ns

Delta Voltage = 101.9 mV, Delta Time = 1.3820 ns (83% UI)

Figure 7-44:QDRII Write Extrapolation - Eye Scope Shot at Receiver IOB (Slow Corner)

Voltage (mV)

1900.0

1700.0

1500.0

1300.0

1100.0

900.0

700.0

500.0

300.0

100.0

Probe 6:U35.G11 (at die)

-100.0

110.000 120.000 130.000 140.000 150.000 160.000

Time (ns)

UG199_c7_45_071007

Figure 7-45:QDRII Write Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner)

84

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Virtex-5 FPGA ML561 User Guide

 

 

UG199 (v1.2) April 19, 2008

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Xilinx ML561 manual UG199c744070907