Altera SDC and TimeQuest API - Manual (Page 39)

Chapter 2: SDC and TimeQuest API Package and Commands 2–29
sdc
© December 2009 Altera Corporation SDC and TimeQuest API Reference Manual
set_disable_timing
Usage
set_disable_timing [-from <name>] [-to <name>] <cells>
Options
-from <name>: Valid source pin suffix
-to <name>: Valid destination pin suffix
<cells>: List of cells
Description
Disables a timing edge (arc) from inside a given cell or cells. Disabling a timing edge prevents timing
analysis through that edge. If either -from or -to (or both) are unspecified, the missing value or values are
replaced by a "*" character.
The values of the -from and -to are either collections or a Tcl list of wildcards used to create collections of
appropriate types. The values used must follow standard Tcl or TimeQuest-extension substitution rules.
See the help for use_timequest_style_escaping for details.
Example
set_disable_timing -from datain -to combout A|B
set_disable_timing -from carryin *