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66 www.xilinx.com Virtex-5 FPGA ML561 User Guide
UG199 (v1.2) April 19, 2008
Chapter 7: ML561 Hardware-Simulation Correlation
R
Figure 7-13: DDR2 Component Read HW Measurement - Eye Scope Shot at Probe Point (FPGA1 Via)
UG199_c7_13_071107
Figure 7-14: DDR2 Component Read Correlation - Eye Scope Shot at Probe Point (Slow Corner)
800.0 1200.0 1600.0 2000.0 2400.0 2800.0
UG199_c7_14_071107
Time (ns)
Voltage (mV)
-100.0
100.0
300.0
500.0
700.0
900.0
1100.0
1300.0
1500.0
1700.0
1900.0
Probe 3:C7.1 (at pin)
♦ 333 MHz, Slow, PRBS6, 85.9% UI
♦ Cursor 1: 697.1 mV, 1.2345 ns
♦ Cursor 2: 774.6 mV, 2.5191 ns
♦ Delta Voltage = 77.5 mV, Delta Time = 1.2846 ns (85.9% UI)