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Input capture filter on FlexTimer (KV4x)

Question asked by q1444 Employee on Oct 24, 2017
Latest reply on Oct 25, 2017 by Robin_Shen

Hi all,

 a question regarding FTM on Kinetis:

40.4.19 Input Capture Filter Control (FTMx_FILTER)

This register selects the filter value for the inputs of channels.



Channel x Input Filter

Selects the filter value for the channel input.

The filter is disabled when the value is zero.


There are 4 bits for the filter values. How is the "effect" of filtering per 1 LSB of those 4 bits?

Does it basically tell how long the input signal have to be minimum (measured in system clock cycles) to go through the filter?