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PE clock / Module clock in FlexCAN

Question asked by Jongtae Park on Mar 22, 2018
Latest reply on Jul 2, 2018 by sakthivel kulandaivel



I'm wondering what PE clock is in FlexCAN and what is difference with Module clock.

In my previous experience with other MCU chips, I had several choices among PLL, external OSC and so on for CAN clock source.

In s32k144, it seems like I have no choice but to use SYS_CLOCK from PLL for CAN module clock.

Plus, I have additional choices between SOSDIV2_CLK, SYS_CLK for PE Clock.

Can I assume PE clock is most important item for the CAN performance?


I look forward to any helpful words from NXP.


Thank you and kind regards,

Jongtae Park