[SI-LIST] how to derive eye diagram

Hello All,
    I would like to know how to derive the eye mask from the spec values. 
    If ABCDEF is the mask vertices, I think A is derived as half of the total 
jitter specified in UI. But when deriving the B, the specified rise time should 
be used for max swing or min swing?
    If you prefer to work on example to show how to derive the mask, please use 
the following spec values for a diff signal
min swing = 500mV
max swing 1000mV
total jitter = 0.3UI
Trise = 0.4 UI ( all numbers are arbitrary and not taken from any spec)
Any help is greatly appreciated.

Thanks,
Moby Abraham

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