Altera SDC and TimeQuest API - Manual (Page 44)

2–34 Chapter 2: SDC and TimeQuest API Package and Commands
sdc
SDC and TimeQuest API Reference Manual © December 2009 Altera Corporation
set_input_transition
Usage
set_input_transition [-clock <name>] [-clock_fall] [-fall] [-max] [-min] [-rise]
<transition> <ports>
Options
-clock <name>: Clock name
-clock_fall: Specifies that input delay is relative to the falling edge of the clock
-fall: Specifies the falling output delay at the port
-max: Applies value as maximum data required time
-min: Applies value as minimum data required time
-rise: Specifies the rising output delay at the port
<transition>: Time value
<ports>: Collection or list of input or bidir ports
Description
This constraint does not affect calculations performed by TimeQuest. It only affects PrimeTime analysis or
HardCopy II devices. If you set this constraint in TimeQuest the constraint is written out to the SDC file
when you call write_sdc.