Reference Eye Diagram
and so on till the last Cross-Over.
Eye D iagram
The Eye Diagram checks whether the USB signal is al
igned with its corresponding eye diagram. It
represents the whole signal by splicing it into a number of waveforms of unit interval (each waveform is
of one bit time interval) scaled and represented on the eye masks.
Eye Violation
An eye violation occurs when an USB signal crosses an eye mask. The results of the eye violation are PASS
if the w aveform does not violate the eye m asks. The result is FAIL if the waveform violates the Eye Masks.
The result is CONDITIONAL PASS if the waveform violates the eye mask, but is within the waiver mask.
By default, the application displays the waiver mask if the result is either CONDITIONAL PASS or FAIL.
If you select the option "Always show the waiver mask in the eye diagram" in File> Preferences menu, the
waiver mask is displayed irrespective of the result.
TDSUSB2 Universal Serial Bus Measurements Package 181