Teledyne LeCroy QPHY-SAS3 - Manual (Page 49)

QPHY-SAS3 Software Option
The second step is to swap Txp and Txn at the device side.
Figure 48 – MFTP – Step 2 Prompt
Before moving on to Step 3 the display on the oscilloscope screen should appear as below. C3 has been
inverted and both C2 and C3 has been rescaled. The skew between C2 and C3 is calculated in P1. This
is the skew value which will be used during the testing. This value is stored in QPHY-SAS3 and it is not
necessary to re-run this process every time you run QPHY-SAS3.
Figure 49 – MFTP – Step 2 Oscilloscope Display
At this point the C2 and C3 can both be reconnected to the test fixture.
Figure 50 – MFTP – Step 3 Prompt
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