Related objects can be queried using the
-of option to the relevant
get_* command. For example, to get a list of pins connected to a
cell object, do the following:-
get_pins -of [get_cells inst_1]
The following image shows object types in the Vivado tool and their relationships, where
an arrow from one object to another object indicates that you can use the
-of option to the get_* command to traverse
logical connectivity and get Tcl references to any connected object. For more
information on first class objects and their relationships, refer to the Vivado
Design Suite Properties Reference Guide (UG912).