Xilinx ML561 manual UG199c735071007

Models: ML561

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Signal Integrity Correlation Results

 

1800.0

 

 

 

 

 

 

1600.0

 

 

 

 

 

 

1400.0

 

 

 

 

 

 

1200.0

 

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

 

600.0

 

 

 

 

 

 

400.0

 

 

 

 

 

 

200.0

 

 

 

 

 

 

0.000

 

Probe 6:U5_B00.H29 (at die)

 

 

 

-200.0

 

 

 

 

 

 

2000.0

2400.0

2800.0

3200.0

3600.0

4000.0

Time (ps)

UG199_c7_35_071007

333 MHz, Slow, PRBS6, 82% UI

Cursor 1: 1.1007V, 2.3997 ns

Cursor 2: 1.0232V, 3.6257 ns

Delta Voltage = 77.5 mV, Delta Time = 1.2260 ns (82% UI)

Figure 7-35:DDR2 DIMM Read Extrapolation - Eye Scope Shot at Receiver IOB (Slow Corner)

 

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

600.0

 

 

 

 

 

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

Probe 6:U5_B00.H29 (at die)

 

 

-200.0

 

 

 

 

 

30.000

40.000

50.000

60.000

70.000

 

 

 

Time (ns)

 

UG199_c7_36_071007

Figure 7-36:DDR2 DIMM Read Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner)

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

79

UG199 (v1.2) April 19, 2008

Page 79
Image 79
Xilinx ML561 manual UG199c735071007