Chapter 7: ML561 Hardware-Simulation Correlation

R

Voltage (mV)

1800.0

1600.0

1400.0

1200.0

1000.0

800.0

600.0

400.0

200.0

0.000

Probe 6:U3_B01.J1 (at die)

 

 

-200.0

1000.0

1400.0

1800.0

2200.0

2600.0

Time (ps)

UG199_c7_26_071007

333 MHz, Slow, PRBS6, 82% UI

Cursor 1: 1.1028V, 1.2399 ns

Cursor 2: 1.0253V, 2.4671 ns

Delta Voltage = 77.5 mV, Delta Time = 1.2272 ns (82% UI)

Figure 7-26:DDR2 DIMM 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 6:U3_B01.J1 (at die)

 

 

-200.0

 

 

 

 

 

95.000

105.000

115.000

125.000

135.000

145.000

 

 

Time (ns)

UG199_c7_27_071007

Figure 7-27:DDR2 DIMM Write Extrapolation - Waveform Scope Shot at Receiver IOB (Slow Corner)

74

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Virtex-5 FPGA ML561 User Guide

 

 

UG199 (v1.2) April 19, 2008

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Xilinx ML561 manual UG199c726071007