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100

101

Definin

a Di

ital Stimulus 14

-9

Enter values for the clock signal properties as described

below.

From the File menu, select Save.

To chan

e clock properties

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.

Modify the clock properties as needed.

Click OK.

Definin

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

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

nal with a clock rate of 20

MHz, 50% duty cycle, a startin

value of 1, and time delay of

5 nsec, set the si

nal properties

as follows:

Frequency = 20Me

Duty Cycle = 0.50 (or 50)

Initial Value = 1

Time Delay = 5ns

1 2 ... 397 398 399 400 401 402 403 404 405 406 407 ... 566 567

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