Chapter 7: ML561 Hardware-Simulation Correlation

R

 

1800.0

 

 

 

 

 

 

1600.0

 

 

 

 

 

 

1400.0

 

 

 

 

 

 

1200.0

 

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

 

600.0

 

 

 

 

 

 

 

 

 

 

 

 

400.0

 

 

 

 

 

 

200.0

 

 

 

 

 

 

0.000

 

Probe 6:U5_B00.H29 (at die)

 

 

 

-200.0

 

 

 

 

 

 

400.0

800.0

1200.0

1600.0

2000.0

2400.0

Time (ps)

UG199_c7_37_071007

333 MHz, Fast, PRBS6, 83% UI

Cursor 1: 697.0 mV, 763.0 ps

Cursor 2: 776.6 mV, 2.0052 ns

Delta Voltage = 79.5 mV, Delta Time = 1.2422 ns (83% UI)

Figure 7-37:DDR2 DIMM Read Extrapolation - Eye Scope Shot at Receiver IOB (Fast Corner)

 

1800.0

 

 

 

 

 

1600.0

 

 

 

 

 

1400.0

 

 

 

 

 

1200.0

 

 

 

 

(mV)

1000.0

 

 

 

 

 

 

 

 

 

Voltage

800.0

 

 

 

 

600.0

 

 

 

 

 

 

 

 

 

 

400.0

 

 

 

 

 

200.0

 

 

 

 

 

0.000

Probe 6:U5_B00.H29 (at die)

 

 

-200.0

 

 

 

 

 

30.000

40.000

50.000

60.000

70.000

 

 

 

Time (ns)

 

UG199_c7_38_071007

 

 

 

 

 

Figure 7-38:DDR2 DIMM Read Extrapolation - Waveform Scope Shot at Receiver IOB (Fast Corner)

80

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Virtex-5 FPGA ML561 User Guide

UG199 (v1.2) April 19, 2008

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Xilinx ML561 manual UG199c737071007