User guide

4-23
Waveform Window
When both cursors are placed in the same delta cycle region, the
Delta field (time between C1 and C2) displays the number of delta
cycles between cursors. If the cursors are in different delta cycle
regions or if only one cursor is in a delta cycle region and the other
is in nonexpanded time, the Delta field displays the difference
between the two time samples with no reference to delta cycles.
When C1 is at the right edge of a Delta Cycle Area (at the end of a
sample time), information is presented as if at the end of the expanded
sample time.
Advanced Features
The following information is covered in this section:
• Locating the Cause of Signal Transitions with Event Origin
• Locating Events Using Breakpoint Groups with Enabled
Expressions
• Collecting and Displaying Unique Events
Locating the Cause of Signal Transitions with Event
Origin
Using the position of the mouse pointer as a reference, the Event
Origin feature can obtain precise information about the source of a
signal value change at a specific time. Click right on a waveform edge
and hold the mouse button to open the Waveform Pane CSM to use
the feature. This is a Verilog only feature. For more information, see
Chapter 12, Event Origin.