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What's the difference between passive filter and digtal filter of Kinetis K64?

Question asked by Wenxue Wang Employee on Oct 29, 2015
Latest reply on Nov 25, 2019 by Andy Berger

I found for Kinetis K64,PFE bit in PORTx_PCRn is used for passive filter and DFE in PORTx_DFER is userd for digtal filter. I don't know what's the difference between them  and which to select if used for hardware debounce?