Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 376)

Teledyne LeCroy Corporation USB 3.0 Electrical Test Modes
376 USB Protocol Suite User Manual
Figure 12.16: Device Initiates Loopback Mode with SuperSpeed Host.
The loopback sequence is transmitted for the defined interval and automatically repeats
until the Stop button is pressed. The Electrical Test window automatically monitors the
loopback patterns for receiver errors and displays the following:
 Number of Symbols
 Number of Transmitted Errors
 Number of Received Errors
 Status of Loopback Mode
Note: The Voyager Loopback Mode does not alter the transmitted signal and does not perform the
jitter tolerance electrical test defined in USB‐IF Electrical Layer Compliance Specification.
Specialized equipment, such as Teledyne LeCroy's PERT Receiver Tolerance Test system, should
be used to introduce jitter as defined by the Electrical Layer Compliance Specification.
12.13.2 Compliance Mode
The Voyager USB 3.0 Electrical Test window supports entry to the Polling.Compliance
substate. This initiates the transmission of the pseudo‐random data pattern generated by
the scrambled D10.0 compliance sequence. The Voyager system USB 3.0 Electrical Test