Xilinx Virtex-5 FPGA ML561

90 www.xilinx.com Virtex-5 FPGA ML561 User Guide
UG199 (v1.2.1) June 15, 2009
Chapter 7: ML561 Hardware-Simulation Correlation
R
Figure 7-55: QDRII Read Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)
1200.0 1600.0 2000.0 2400.0 2800.0
-200.0
0.000
200.0
400.0
600.0
800.0
1000.0
1200.0
1400.0
1600.0
1800.0
Time (ps)
Voltage (mV)
UG199_c7_55_070907
Probe 6:U34.G33 (at die)
♦ 300 MHz, Fast, PRBS6, 87% UI
♦ Cursor 1: 801 mV, 2.7263 ns
♦ Cursor 2: 697.0 mV, 1.2744 ns
♦ Delta Voltage = 104.0 mV, Delta Time = 1.4519 ns (87% UI)
Figure 7-56: QDRII Read Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)
25.000 35.000 45.000 55.000 65.000 75.000
-100.0
100.0
300.0
500.0
700.0
900.0
1100.0
1300.0
1500.0
1700.0
1900.0
UG199_c7_56_071007
Time (ns)
Voltage (mV)
Probe 6:U34.G33 (at die)