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Journeyman III

set_clock_groups with only one entry

When using the set_clock_groups command, what happens if only one entry has been set?


The documentation always shows a second -group like this:

set_clock_groups -name async_clk0_clk1 -asynchronous -group {clk0 usrclk itfclk} \
-group {clk1 gtclkrx gtclktx}

 but the constraint I have inherited looks like this:

set_clock_groups -asynchronous -group txoutclk_out[3]

The constraint does not name the group, and it does not have a destination group. Does this mean that this clock will be asynchronous to all other clocks in the design?


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