The following waveforms show the behavior of scfifo megafunction for the chosen set of parameters in design "lpm_fifoDZ.vhd". The design "lpm_fifoDZ.vhd" has a depth of 128 words of 128 bits each. The fifo is in show-ahead synchronous mode. The data becomes available before 'rdreq' is asserted; 'rdreq' acts as a read acknowledge.
The above waveform shows the behavior of the design under normal read and write conditions with aclr .