Xilinx ML561 manual UG199c729071007

Models: ML561

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R

Signal Integrity Correlation Results

Voltage (mV)

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

 

1000.0

 

 

 

 

 

800.0

 

 

 

 

 

600.0

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

 

Probe 6:U3_B01.J1 (at die)

 

 

-200.0

 

 

 

 

 

400.0

800.0

1200.0

1600.0

2000.0

2400.0

Time (ps)

UG199_c7_28_071007

 

333 MHz, Fast, PRBS6, 88% UI

Cursor 1: 1.1004V, 646.3 ps

Cursor 2: 1.0273V, 1.9659 ns

Delta Voltage = 73.1 mV, Delta Time = 1.3196 ns (88% UI)

Figure 7-28:DDR2 DIMM Write Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)

Voltage (mV)

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

 

1000.0

 

 

 

 

 

800.0

 

 

 

 

 

600.0

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

 

Probe 6:U3_B01.J1 (at die)

 

 

 

 

 

 

95.000

105.000

115.000

125.000

135.000

145.000

 

 

Time (ns)

UG199_c7_29_071007

 

 

 

 

Figure 7-29:DDR2 DIMM Write Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

75

UG199 (v1.2) April 19, 2008

Page 75
Image 75
Xilinx ML561 manual UG199c729071007