The following waveforms show the behavior of scfifo megafunction for the chosen set of parameters in design fifo.vhd. The design fifo.vhd has a depth of 8192 words of 8 bits each. The output of the fifo is registered. The fifo is in legacy synchronous mode. The data becomes available after 'rdreq' is asserted; 'rdreq' acts as a read request.
The above waveform shows the behavior of the design under normal read and write conditions with aclr .