Input_transition_time – Altera Quartus II Settings File User Manual
Page 260
INPUT_TRANSITION_TIME
Specifies the input transition time. This assignment is used in Quartus to adjust the timing of the I/O
buffers for all families that support AIOT. It is also used when generating the PrimeTime script that it is
used by the HardCopy back end. This assignment gets converted as a set_input_transition SDC
command. If the assignment does not exist, Quartus will generate a set_input_transition using 80% of
VCCN * 1V/ns where VCCN depends on the I/O Standard used
Type
Time
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment supports wildcards.
This assignment is copied to any duplicated nodes.
Syntax
set_instance_assignment -name INPUT_TRANSITION_TIME -to
260
INPUT_TRANSITION_TIME
MNL-Q21005
2015.05.04
Altera Corporation
Quartus Settings File Reference Manual
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