Burst, Burst -13 – Altera FFT MegaCore Function User 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
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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