FS32K142UAT0VLFT I2C supports clock stretching or not

[ultra12]

Dear Team,

I am using FS32K142UAT0VLFT in my design .

I would like to know whether this controller supports I2C clock stretching or not

Regards

HARI

[danielmartynek]

Hello Hari,

Yes, it does.

LPI2C in Master mode supports clock stretching by default.

In Slave mode, it is configurable (Slave Configuration Register 1).

Regards,

Daniel

[ultra12]

Hi Daniel,

Thank you very much for the info.

May I know in general How to check if a microcontroller I2C supports clock stretching or not.

Can I say , if the minimum frequency is 0Hz (and/or there's no maximum time for the low period of the clock), that indicates it is clock stretching compatible.

Regards

HARI

[danielmartynek · Accepted solution]

Do you mean in Master mode?

If so, refer to this thread:

https://community.nxp.com/t5/S32K/How-does-S32K148-LPI2C-master-support-clock-stretching-feature/m-p...

Regards,

Daniel