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Virtex-5 FPGA ML561 User Guide www.xilinx.com 75
UG199 (v1.2) April 19, 2008
Signal Integrity Correlation Results
R
Figure 7-28: DDR2 DIMM Write Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)
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UG199_c7_28_071007
Time (ps)
Voltage (mV)
Probe 6:U3_B01.J1 (at die)
♦ 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 7-29: DDR2 DIMM Write Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)
95.000 105.000 115.000 125.000 135.000 145.000
0.000
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UG199_c7_29_071007
Time (ns)
Voltage (mV)
Probe 6:U3_B01.J1 (at die)