parameter |
value |
range |
explanation |
|
|---|---|---|---|---|
Parameters controlling functionality |
||||
| n | 4–16384 | DFT size (?) | ||
| direction | forward or inverse DFT | |||
| data width | 6–32 | datapath width, fixed point precision (?) | ||
| twiddle width | 2–16 |
twiddle factor bitwidth (?) | ||
| data ordering | bit-reversed input or output (?) | |||
| scaling mode | unscaled or scaled arithmetic (?) | |||
Parameters controlling resource usage |
||||
| p | 1–32 |
degree of parallelism (?) | ||
| twiddle storage | store twiddles using slice resources or BRAM (?) | |||
| FIFO threshold | 2–32
|
FIFO of >= depth will be built as BRAM. (?) | ||