关于System PLL的问题!

[yangweihuadiand]

关于System PLL的问题!

在IMX6DQRM Rev. 3中部分章节对System PLL为：

PLL2 (also referred tp as System_PLL or 528_PLL)

即PLL2又称为System PLL。

Chapter 18 Clock Controller Module (CCM)对System PLL有专门的描述：

PLL2 also referenced as System PLL

但在Chapter 8 System Boot 一章中的8.4.3 Clocks at Boot Time 

Table 8-4. Normal Frequency Clocks Configuration

上表中，显然System PLL来自pll1，为ARM Core  clock的前级时钟（ARM Core固定2分频前的时钟）

这就让我很疑惑System PLL到底为何？

谢谢！

[yangweihuadiand]

OK,thanks a lot!

[igorpadykov]

Q:
About System PLL question!
In IMX6DQRM Rev. chapters 3 for System PLL is:
PLL2 (also referred tp as System_PLL or 528_PLL)
That PLL2 also known as System PLL.
Chapter 18 Clock Controller Module (CCM) for System PLL has a dedicated description:
PLL2 also referenced as System PLL
But 8.4.3 Chapter 8 System Boot chapter Clocks at Boot Time
Table 8-4. Normal Frequency Clocks Configuration
The above table, it is clear from the System PLL pll1, for the ARM Core clock
previous stage clock (ARM Core fixed before the clock divided by 2)
It makes me wonder System PLL in the end why?

A:

Correct meaning PLL1 is as ARM PLL, use Chapter 18 Clock Controller Module (CCM)

Best regards
igor
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