- VHDL source: psi_common_dyn_sft
- Testbench source: psi_common_dyn_sft_tb.vhd
This entity implements a dynamic shift implemented in multiple stages in order to achieve good timing.
| Name | type | Description |
|---|---|---|
| direction_g | string | left or right |
| sel_bit_per_stage_g | positive | shift size 1, 2..n bits |
| max_shift_g | positive | number of maximum shift |
| width_g | positive | length of data input |
| sign_extend_g | boolean | extend sign or not |
| rst_pol_g | std_logic | reset polarity |
| Name | In/Out | Length | Description |
|---|---|---|---|
| clk_i | i | 1 | system clock |
| rst_i | i | 1 | system reset |
| vld_i | i | 1 | strobe input |
| shift_i | i | max_shift_g | parameter shift |
| dat_i | i | width_g | data input |
| vld_o | o | 1 | strobe output |
| dat_o | o | width_g | data output |