Regarding fSCK of i.MX RT1170 controller MIMXRT1176CVM8A

[Deepak_India]

Hi,

Can you please let me know the maximum frequency of operation for SCLK of LPSPI Master mode  of MIMXRT1176CVM8A (MIMXRT1176 family).

As per the datasheet, (Document Number: IMXRT1170IEC Rev. 4, 05/2023)

1) Max value of fSCK is given as fperiph/2. (Page 88 of datasheet)
But i could not get the value of fperiph.

2) Also, there is a note for fSCK in page 88 that says  "Absolute maximum frequency of operation (fop) is 30 MHz. The clock driver in the LPSPI module for fperiph must guaranteed this limit is not exceeded".

Can you please look into these two points and tell me the max fSCK for LPSPI master mode.

[Habib_MS]

Hello @Deepak_India ,

The fperif symbol refers to the max frequency of operation in your peripheral LPSPI and according to the note, you can see the max value of this is 30 MHz. This means that your maximum frequency of fSCK is going to be fperif/2  or 15 MHz.

BR,

Habib.

[Deepak_India]

Hi Habib,

Thanks for your response.

Regards

Deepak