Chapter 7: ML561 Hardware-Simulation Correlation

R

Voltage (mV)

1900.0

Probe 1:U7.P25 (at die)

1700.0

1500.0

1300.0

1100.0

900.0

700.0

500.0

 

 

 

 

 

300.0

 

 

 

 

 

100.0

 

 

 

 

 

-100.0

 

 

 

 

 

800.0

1200.0

1600.0

2000.0

2400.0

2800.0

Time (ps)

UG199_c7_17_071007

333 MHz, Slow, PRBS6, 85.5% UI

Cursor 1: 1.0988V, 1.2170 ns

Cursor 2: 1.0254V, 2.5029 ns

Delta Voltage = 73.4 mV, Delta Time = 1.2859 ns (85.5% UI)

Figure 7-17:DDR2 Component Read Extrapolation - Eye Scope Shot at Receiver IOB (Slow Corner)

Voltage (mV)

1800.0

1600.0

1400.0

1200.0

1000.0

800.0

600.0

400.0

200.0

0.000

-200.0

Probe 1:U7.P25 (at die)

65.000

75.000

85.000

95.000

105.000

Time (ns)

UG199_c7_18_071007

Figure 7-18:DDR2 Component Read Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner)

68

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Virtex-5 FPGA ML561 User Guide

 

 

UG199 (v1.2) April 19, 2008

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Xilinx ML561 manual UG199c717071007