Does anyone know how exactly bosch ecm report KR? Is it any different than the way your traditional ecm report KR?

My tuner thinks bosch ecm's software report KR a little differently. He think when the ECM reports KR, it is not reporting the actual amount of timing that is being subtracted but rather the amount of noise from the knock sensor. He think instead of the ECM software calculating the amount of timing to subtract based on knock, the ECM software filters out noise that isn’t considered likely to be knock then what is left over is a rough cut at how much timing should be pulled out.

Does this make sense?