Set Input Delay Constraint dialog Box

Use this dialog box to apply input delay constraints or external setup/hold constraints. This constraint defines the arrival time of an input relative to a clock.

To open the Set Input Delay Constraint dialog box (shown below) from the SmartTime Constraints Editor, choose Actions > Constraints > Input Delay.

External Setup/hold

Set Input Delay Constraint (Show by: External Setup/Hold) Dialog Box

Input Port

Specifies a list of input ports in the current design to which the constraint is assigned. You can apply more than one port.

Clock Port

Specifies the clock reference to which the specified External Setup/Hold is related.

External Hold

Specifies the external hold time requirement for the specified input ports.

External Setup

Specifies the external setup time requirement for the specified input ports.

Comment

Enables you to provide comments for this constraint.

Input Delay

Set Input Delay Constraint (Show by: Input Delay) Dialog Box

Input Port

Specifies a list of input ports in the current design to which the constraint is assigned. You can apply more than one port.

Clock Port

Specifies the clock reference to which the specified input delay is related.

Clock edge

Indicates the launching edge of the clock.

Use max delay for both min and max

Specifies that the minimum input delay uses the same value as the maximum input delay.

Maximum Delay

Specifies that the delay refers to the longest path arriving at the specified input.

Minimum Delay

Specifies that the delay refers to the shortest path arriving at the specified input.

Comment

Enables you to provide comments for this constraint.

See Also

Specifying input timing delay constraint