get_ports
Returns the named ports specified by an argument.
Syntax
get_ports <pattern>
Argument
pattern
Specifies the pattern to match the ports. This is equivalent
to the macros $in()[<pattern>] when used as –from argument and $out()[<pattern>]
when used as –to argument or $ports()[<pattern>] when used as a
–through argument.
Example
create_clock
-period 10 [get_ports CK1]