Altera FFT MegaCore Function - Manual (Page 36)

Example 3-2: FFT Buffered Burst Data Flow Simulation Waveform
clk
reset_n
sink_vaild
sink_ready
sink_sop
sink_eop
inverse
sink_real
sink_imag
source_real
source_imag
source_exp
source_ready
source_valid
source_sop
source_eop
-13609 -47729 271 31221 -21224
-13609 -47729 271 31221 -21224
EXP3 EXP2 EXP1 EXP0
Related Information
Enabling the Streaming FFT on page 3-7
Burst
The burst I/O data flow FFT operates similarly to the buffered burst FFT, except that the burst FFT
requires even lower memory resources for a given parameterization at the expense of reduced average
throughput. The following figure shows the simulation results for the burst FFT. The signals
source_valid
and
sink_ready
indicate, to the system data sources and slave sinks either side of the FFT,
when the FFT can accept a new block of data and when a valid output block is available on the FFT
output.
UG-FFT
2014.12.15
Burst 3-13
FFT IP Core Functional Description Altera Corporation
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