Period Jitter
Signal jitter: to generate eye-diagram to get jitter
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Cut-off target to many parts.
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Overlap all the parts together to generate eye-diagram.
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Get reference voltage VREF.
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Report max jitter.

Differential Noise: VIX
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Detect edges on target.
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Get cross-point on edge of target.
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Get the voltage of each cross-point.
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To get VIX for each cross-point: |V_cross-point-VREF|= |V_cross-point-0.5*IO_Power|.
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Report out the max value.
Cut-off Pattern
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Automatically parse out period to cut off target: For example, to cut off DQ to 13 parts by period

Period Jitter Example: Eye-diagram generation
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Overlap all the parts together to generate eye-diagram.
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To report jitter.
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2UI eye jitter reports the max one of jitter1 & jitter2.
