FFT132512/4 can process single
stream of 32/64/128/256/512 point
FFT/IFFT with input and output data
in natural order.
The FFT or IFFT radix operations
start when START input is sampled
high. The core will start reading
the input data, asserting the READ
signal each time it reads the data.
The FFT data output will be streamed
out after fixed latency. The core
will indicate data output by
asserting the WRITE output.
Core will continue to operate on
incoming data stream block of
32/64/128/256/512 samples each while
the START signal is high.
SCALE input allows setting of the
interstage scaling for each of the
9 radix2 FFT stages. A bit value of
1 in position N indicates that the
input data of the stage N are scaled
by a factor of 2.
