13 usb 3.0 electrical test modes, 1 loopback mode – Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) User Manual
Page 373

USB Protocol Suite User Manual
373
USB 3.0 Electrical Test Modes
Teledyne LeCroy Corporation
Figure 12.14: Usb 3 Trace to Exerciser Script Export Settings Dialog
8. Select from the desired options, click OK.
9. Click the Start Export button to begin export.
10. After exporting finishes, click Close to close the dialog.
12.13 USB 3.0 Electrical Test Modes
In the Electrical Test window, you can use Loopback mode and Compliance mode.
To access the Electrical Test window, you must connect to the Voyager system.
12.13.1 Loopback Mode
The Voyager USB 3.0 Electrical Test window supports entry to the Polling.Loopback
substate. For receiver testing, the device under test (loopback slave) is placed in a special
test mode and echoes back a predefined loopback pattern. The Voyager system can
initiate this special mode (loopback master) and generate the basic loopback pattern. The
Voyager automatically monitors the received traffic for bit errors.
Full compliance testing requires the addition of jitter tolerance measurements to the
loopback stream. Specialized equipment, such as Teledyne LeCroy's PERT
Receiver Tolerance Test system, should be used to introduce jitter and perform the full
electrical layer compliance testing process.