Forum Discussion
Altera_Forum
Honored Contributor
12 years ago --- Quote Start --- What is a registered output? --- Quote End --- Basically, if flip flop or register (more than one flip flop) is used to store the output it is called registered output.In case of your pdf,output z is not registered,it is combinatorial. --- Quote Start --- How can you tell how much latency there is? --- Quote End --- Latency can be calculated by number of clock cycle require to transfer input to output.In case of your pdf, if we consider next_state is input and state is output(This is for example only.Because these two signals are not the part of IO port ) then there will be a latency of 1 to reach the value of next_state to state signal.