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Original question:

RM57L843: Ethernet sample codes

RM57L843: LwIP demo clock configuration

Koichiro Tashiro
Mastermind 21150 points
Part Number: RM57L843

Hi,

My customer is developing the system with the LwIP demo as reference.
The demo code was introduced in the original thread above.

Question:
At the page#3 in the User's Guide (attached), VCLKA4_DIV is configured as 37.5MHz.
User Guide.pdf 

What is the reason this frequency(37.5MHz) is selected here?
Is it OK to use other frequencies?

Thanks and regards,
Koichiro Tashiro