MCX MicrocontrollersのトピックI3C with low clock frequency

I3C with low clock frequency

Bruce_Teng — Tue, 10 Feb 2026 16:33:24 GMT

Hi, For a specific use case, I need to run I3C at a low clock frequency of around 10 kHz on the MCXN556, and I’m using SmartDMA (not eDMA) for the transfers. Are there any settings or configuration details I should be aware of? Thanks

Re: I3C with low clock frequency

Harry_Zhang — Wed, 11 Feb 2026 03:00:14 GMT

Hi @Bruce_Teng

If you want to run I3C at a low clock frequency of around 10 kHz.

You can change these.

The EXAMPLE_I3C_OD_BAUDRATE is open drain baudrate.

The EXAMPLE_I3C_PP_BAUDRATE is push pull baudrate.

Harry