User`s guide

Definin
g
a Di
g
ital Stimulus 14
-9
5
Enter values for the clock signal properties as described
below.
6
From the File menu, select Save.
To chan
g
e clock properties
1
In the Stimulus Editor, do one of the following:
• Double-click the clock name to the left of the axis.
• Click the clock name, and then, from the Edit menu,
select Attributes.
2
Modify the clock properties as needed.
3
Click OK.
Definin
g
si
g
nal transitions
You can do any of the following when defining digital signal
transitions:
• add a transition
• move a transition
• edit a transition
• delete a transition
Note
These operations cannot be applied to a stimulus
defined as a clock si
g
nal.
For this property... Enter this...
Frequency clock rate
Duty Cycle percent of high versus low in decimal or
integer units
Initial Value starting value: 0 or 1
Time Delay time after simulation begins when the clock
stimulus takes effect
Example:
To create a clock
si
g
nal with a clock rate of 20
MHz, 50% duty cycle, a startin
g
value of 1, and time delay of
5 nsec, set the si
g
nal properties
as follows:
Frequency = 20Me
g
Duty Cycle = 0.50 (or 50)
Initial Value = 1
Time Delay = 5ns