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How to calculate MIPI CSI-2 required operating frequency

Question asked by ko-hey on Feb 23, 2015
Latest reply on Jul 26, 2016 by ko-hey

Hi all

 

I'm using i.MX6DualLite and have two questions.


Q1:

According to RM, I can calculate in the following way.

Required_Freq.PNG.png

In my case, my board will receive 1080p@60fps and its data format is RGB444.

When calculated according to the formula, the required frequency is almost 240MHz.


F = 1920 * 1080 * 60 * 1.35 * 1.5 = 251,942,400Hz ⇒ 240MHz


I couldn't understand whether if i.MX6 can support the frequency.

Is this frequency would be required in each lane ?

If yes, i.MX6DualLite could not support 1080p60 and its data format is RGB444.

Is it correct ?

 

 

Q2:

According to Page 2791 of RM, it can be supported as it looks.

Does the description mean that the max frequency is 125MHz at each lane ?

I think the two description is different each other.

Which one is correct ?

 

mipi_interface_freq.PNG.png

 

Ko-hey

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