Intel® Quartus® Prime Pro Edition User Guide: Scripting

ID 683432
Date 6/20/2022
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

3.1.9.6. dni::remove_input_delay (::quartus::dni_sdc)

The following table displays information for the dni::remove_input_delay Tcl command:

Tcl Package and Version

Belongs to ::quartus::dni_sdc

Syntax dni::remove_input_delay [-h | -help] [-long_help] [-blackbox] [-clock <name> ] [-clock_fall] [-fall] [-level_sensitive] [-max] [-min] [-rise] <targets>
Arguments -h | -help Short help
-long_help Long help with examples and possible return values
-blackbox Removes an input delay that was assigned to a partition boundary port.
-clock <name> Clock name
-clock_fall Specifies that input delay is relative to the falling edge of the clock
-fall Specifies the falling input delay at the port
-level_sensitive Specifies that input delay is relative to a level-sensitive latch
-max Applies value as maximum data arrival time
-min Applies value as minimum data arrival time
-rise Specifies the rising input delay at the port
<targets> Collection or list of input ports
Description
Removes input delay from a port. For each input port specified,
removes all input delays for that port. This means that rise, fall,
max, and min delays for each clock and reference pin on the input port
are all removed.

The value of the targets is either a collection or a Tcl list of
wildcards used to create a collection of the appropriate type.
Example Usage
# Simple input delay with the same value for min/max and rise/fall
set_input_delay -clock clk 1.5 [get_ports {in1 in2}]
set_input_delay -clock clk2 1.5 [get_ports {in1 in2}]
set_input_delay -clock clk 1.6 [get_ports {in3 in4}]

# Remove input delay on ports in1 and in4,
# for all flags and reference ports and flags
remove_input_delay [get_ports {in1 in4}]
Return Value Code Name Code String Return
TCL_OK 0 INFO: Operation successful