The following waveforms show the behavior of dcfifo megafunction for the chosen set of parameters in design "SPI_FIFO_20.tdf". The design "SPI_FIFO_20.tdf" has a depth of 8 words of 20 bits each. 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 .