Question, i.MX8M Hardware design(27M clock)

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Question, i.MX8M Hardware design(27M clock)

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Contributor IV

Dear team,

I would like to ask about i.MX8M board design.

Can one remove an oscillator routed to XTALI_27M when HDMI of i.MX8M is not used?

Thanks,

Miyamoto

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Yuri
NXP Employee
NXP Employee

Hello,

 

  Generally 27M crystal may be used by other function like audio.

Only differential 27M oscillator can be removed if no HDMI function. 

Regards,

Yuri.

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Contributor IV

Hi Yuri

Thanks for your support.

Do you mean that ‘differential 27M oscillator’ is clock inputs to HDMI_REFCLK_P/N?

And HDMI_REFCLK_P/N can be left open when HDMI is not used.

And 27M crystal cannot be removed even if user does not use HDMI.

Correct?

 

BR,

Miyamoto

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Yuri
NXP Employee
NXP Employee

Correct!

~Yuri.

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