Figure 17. cominit and comwake timing measurements – Teledyne LeCroy QPHY-SATA User Manual
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915745 Rev
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Figure 17. COMINIT and COMWAKE Timing Measurements
OOB-06
– COMWAKE Gap Detection
This test measures the response of the product to COMWAKE with different gap widths. A signal generator is
used to send COMWAKE to the product. A device should respond to COMWAKE by sending COMWAKE followed
by ALIGN primitives. A host should respond to COMWAKE by sending ALIGN primitives. The setup is the same as
OOB-01.
When using the PeRT
3
the result is tested by the PeRT
3
and not by the oscilloscope.
When not using the PeRT
3
,the trigger output of the signal generator is used to indicate when a COMWAKE has
been sent. When the product responds to COMWAKE it should look similar to the following:
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