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Virtex-5 FPGA ML561 User Guide www.xilinx.com 87
UG199 (v1.2) April 19, 2008
Signal Integrity Correlation Results
R
Figure 7-49: QDRII Read HW Measurement - Eye Diagram Scope Shot at Probe Point (FPGA3 Via)
UG199_c7_49_071107
Figure 7-50: QDRII Read Correlation - Eye Diagram Scope Shot at Probe Point (Slow Corner)
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Time (ps)
Voltage (mV)
UG199_c7_50_070907
Probe 3:C7.1 (at pin)
♦ 300 MHz, Slow, PRBS6, 59% UI
♦ Cursor 1: 1.1007V, 1.4881 ns
♦ Cursor 2: 1.0029V, 2.4719 ns
♦ Delta Voltage = 97.9 mV, Delta Time = 983.8 ps (59% UI)