SLVSCP6H July 2014 – June 2020 DRV10983
If acceleration current limit and AVS are enabled, the PWM duty cycle output (read back at spdCmdBuffer) may not always match the input command (read back at SpeedCmd) shown in Figure 39. See AVS Function and Current Limit.
By reading the value of spdCmdBuffer, the user can observe buffered speed command (output PWM duty cycle) to the motor.
Equation 14 shows how the buffered speed is calculated.