US Patent 7813908 Clock control module simulator and method thereof

A method for simulating an integrated circuit having a plurality of clock control modules includes simulating the integrated circuit, and automatically receiving from each clock control model during simulation an indication of a simulated power state of the clock control model. Accordingly, the simulated power state of the portion of the integrated circuit model to be clocked by a clock control model can be monitored based on the indicator from the clock control model, rather than on a higher level analysis of the simulated input/output behavior of the integrated circuit model.