In order to evaluate the performance of the authors' proposal,Fig. 14 shows the testing time (right side) for CLBs of authors’ proposal vs. [18]. This work evaluates XC4000 FPGAs which are obsolete and whose internal CLB are simpler than the ones authors use in the present proposal. In any case, the time consumed by this proposal is approximately 25% higher compared to [18]. However,it is important to note that the number of CLBs to be evaluated is three times higher and also the internal complexity of these is greater. This is therefore the current proposal significantly improves the time to evaluate the internal resources of a Xilinx FPGA with respect to previous work.