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The eDMA engine in the Kinetis K22 requires 11 or 12 cycles to transfer to/from a peripheral. Are all those cycles blocking normal MCU processing. If not, how many?

Question asked by Kirby McManus on Aug 10, 2018
Latest reply on Aug 14, 2018 by Fang Li

We are using K22 MCU and doing about 2 million DMA transfers per second. The user manual describes the eDMA engin time of 11 or 12 cycles per transfer. I need to know the MCU normal execution of code is suspended for all of this time or only part of it.

Thanks 

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