How to identify clock network objects in the design?

Graphically we have this functionality under "Clock->Analyze Clock Tree".

Programatically, what I see a lot of people doing is tracing the clock network, writing it to a file and then parsing the file for the information they're looking for.  For example:

ckSynthesis -clk DTMF_INST/TEST_CONTROL_INST/i_150/Y -check -trace DTMF_CHIP.cts_trace -forceReconvergent -breakLoop

Hope this helps,
Bob

 Hi Bob,

Thanks for the response. We currently follow the method you suggest.

I was hoping if we can query it using "get_attribute". That would be a very good option.

Example :

The clock_network_pins attribute returns all pins that are in the clock tree of the specified clock.

get_attribute  [get_clocks clock_name]  clock_network_pins

Regards

Rajesh

Hi Rajesh,

"get_attributes [get_clocks clock_name] clock_network_pins" does work for clocks in the timing domain but as you know from a CTS perspective there isn't necessarily alignment between clocks that originate from SDC and those that we as users define as part of a clock tree spec file.  I'm not aware of a way to programmatically query CTS clocks though it's something that would be useful.

-Bob