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if (!hasUserActivity(out_pin)) { |
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PwrActivity activity = evalActivity(seq->data(), reg); |
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// Register output activity cannnot exceed one transition per clock cycle, |
Is what propagates power for a sequential element. It only depends on data() and not clock() hence does not consider activity and/or duty on the clock pins.
Propagation should be updated to depend on both clocked_on and not just next_state functions for flops. A similar update may be needed for latches.
Extract from the .lib for a flop.
ff (IQ,IQN) {
clocked_on : "CLK";
next_state : "D";
}
OpenSTA/power/Power.cc
Lines 836 to 838 in 9c9b565
Is what propagates power for a sequential element. It only depends on data() and not clock() hence does not consider activity and/or duty on the clock pins.
Propagation should be updated to depend on both clocked_on and not just next_state functions for flops. A similar update may be needed for latches.
Extract from the .lib for a flop.