USB 3 Link State Timing View | Protocol Solutions User Documentation

Click to open USB 3.2 Link State Timing View, which graphically shows how much time the link spends in each link state.

The States are:

Compliance
Loopback
Rx.Detect
SS.Inactive
SS.Disabled
Hot Reset
Recovery
Polling
U3, U2, U1,U0, and Unknown

Time is displayed along the bottom in microseconds.

If you right-click in the graph area, a small dialog box will popup. You can turn the following attributes on or off:

Show Legend
Show Title Axis

The buttons have the following functions:

Button	Functionality		Button	Functionality
	Vertical zoom in			Insert Time markers. After clicking, click in the display to make a red vertical line. Select and drag the line to indicate a time interval between two lines.
	Vertical zoom out			Sync by Time. Synchronize the USB 3.2 Link State Timing States View and the Trace View.
	Zoom by Selection			Monitor
	Zoom by Horizontal Drag			Go to previous link state
	Full Screen			Go to next link state
	Pointer Mode			Show Downstream port link states.
	Hand Panning			Show Upstream port link states.

USB 3.2 LTSSM View

The LTSSM View displays the LTSSM diagram depicted in the USB 3.2 specification.

Click to display the USB 3.2 LTSSM View.
Click to synchronize the LTSSM View and Trace View.
Click the left arrow to go to the previous link state.
Click the right arrow to go to the next link state.

Click the down arrow to show Downstream port link states.
Click the up arrow to show Upstream port link states.
Click to show the number of transitions.

NOTE: To enable LTSSM buttons, open the Display Options dialog. In the General tab, check the Process USB 3.2 LTSSM checkbox. Click Save As Default. Reopen the trace file.

USB 3.2 Link State Timing View Toolbar

USB 3.2 LTSSM View