Takes 4 4-bit signed inputs (real integer numbers) and outputs 4 6-bit complex numbers
after reset, use the write enable signal to write 4 inputs. Read the output for the computer FFT.
| # | Input | Output |
|---|---|---|
| 0 | clock | rd_idx_zero |
| 1 | reset | none |
| 2 | wrEn | data_out_0 |
| 3 | none | data_out_1 |
| 4 | data_in_0 | data_out_2 |
| 5 | data_in_1 | data_out_3 |
| 6 | data_in_2 | data_out_4 |
| 7 | data_in_3 | data_out_5 |