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 1:U12.D3 (at die)

 

 

 

-200.0

 

 

 

 

 

 

200.0

600.0

1000.0

1400.0

1800.0

-200.0

Time (ps)

UG199_c7_08_071007

333 MHz, Slow, PRBS6, 84.5% UI

Cursor 1: 1.1007V, 123.7 ps

Cursor 2: 1.0253V, 1.3921 ns

Delta Voltage = 75.4 mV, Delta Time = 1.2684 ns (84.5% UI)

Figure 7-8:DDR2 Component Write 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

Probe 1:U12.D3 (at die)

 

 

-200.0

65.000 75.000 85.000 95.000 105.000

Time (ns)

UG199_c7_09_071007

Figure 7-9:DDR2 Component Write Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner)

Virtex-5 FPGA ML561 User Guide

www.xilinx.com

63

UG199 (v1.2) April 19, 2008

Page 63
Image 63
Xilinx ML561 manual Time ns