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About clock tree in i.MX6DQ.

Question asked by Keita Nagashima on Oct 29, 2015
Latest reply on Nov 8, 2015 by Keita Nagashima

Dear All,

 

I referred to ”Figure 18-2. Clock Tree - Part 1” and ”Figure 18-3. Clock Tree - Part 2” in IMX6DQRM(Rev.3).

But, the some difference was seen between jb4.2.2's setting and Reference Manual (RM).

 

                                                    [RM]   [JB4.2.2]

GPU2D_CORE_CLK_ROOT   352MHz   480MHz

GPU3D_CORE_CLK_ROOT     594MHz   528MHz

GPU3D_SHADER_CLK_ROOT 720MHz   594MHz

ENFC_CLK_ROOT               198MHz   19.8MHz

PERCLK_CLK_ROOT            16.5MHz   22MHz

 

[Q1]

Why are there differences in the clock?

 

[Q2]

Is the setting of JB4.2.2 right?

 

Best Regards,

Keita

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