15.2.2 Input and Output Signals

The following table lists the input and output ports of Speed ID IQ PI Controller.

Table 15-3. Inputs and Outputs of Speed ID IQ PI Controller
Signal Name	Direction	Description
reset_i	Input	Active low synchronous reset signal.
sys_clk_i	Input	System clock.
speed_en_i	Input	Enable signal for speed PI. When set to 1, normal PI controller operation occurs. When set to 0 (zero), PI controller output is fixed to the value available at the speed_init_i input.
clear_buffer_i	Input	Clears internal buffers when the motor stops.
idq_en_i	Input	Enable signal for Id and Iq PI: Whens et to 1, normal PI controller operation occurs When set to 0 (zero), PI controller output is fixed to the value available at the id_init_i and iq_init_i inputs respectively.
speed_pi_start_i	Input	Start signal for speed PI.
idpi_start_i	Input	Start signal for Id PI.
iqpi_start_i	Input	Starts ignal for Iq PI.
speed_init_i	Input	Initialization value for speed PI.
iq_init_i	Input	Initialization value for iq PI.
id_init_i	Input	Initialization value for id PI.
speed_pi_ref_input_i	Input	Speed PI reference input.
speed_pi_act_input_i	Input	Speed PI feedback measurement input.
speed_pi_kp_i	Input	Proportional gain (Kp) for Speed PI.
speed_pi_ki_i	Input	Integral gain (Ki) for Speed PI.
speed_pi_ymax_i	Input	Saturation limit (upper threshold) of speed PI controller.
speed_pi_ymin_i	Input	Saturation limit (lower threshold) of speed PI controller.
id_pi_ref_input_i	Input	Id PI Reference input.
id_pi_act_input_i	Input	Id PI feedback measurement input.
id_pi_kp_i	Input	Proportional gain (Kp) for Id PI.
id_pi_ki_i	Input	Integral gain (Ki) for Id PI.
idq_pi_ymax_i	Input	Saturation limit (upper threshold) of current PI controller.
idq_pi_ymin_i	Input	Saturation limit (lower threshold) of current PI controller.
iq_pi_ref_input_i	Input	Iq PI Reference input.
iq_pi_act_input_i	Input	Iq PI feedback measurement input.
iq_pi_kp_i	Input	Proportional gain (Kp) for Iq PI.
iq_pi_ki_i	Input	Integral gain (Ki) for Iq PI.
idq_pi_ymax_i	Input	Saturation limit (upper threshold) of current PI controller.
idq_pi_ymin_i	Input	Saturation limit (lower threshold) of current PI controller.
speed_pi_done_o	Output	Indicates Speed PI computation is complete. High for one system clock cycle.
id_pi_done_o	Output	Indicates Id PI computation is complete. High for one system clock cycle.
iq_pi_done_o	Output	Indicates Iq PI computation is complete. High for one system clock cycle.
speed_pi_output_y_o	Output	Speed PI computation output.
id_pi_output_y_o	Output	Id PI computation output.
iq_pi_output_y_o	Output	Iq PI computation output.