Hi--

On 6/26/25 7:31 AM, Luo Jie wrote:
> +Below is a simplified hardware diagram of IPQ9574 SoC which includes the PPE 
> engine and
> +other blocks which are in the SoC but outside the PPE engine. These blocks 
> work together
> +to enable the Ethernet for the IPQ SoC::
> +

[snip]

> + | |              +-------------------------+ +---------+ +---------+        
>  | |
> + | |125/312.5M clk|       (PCS0)            | | (PCS1)  | | (PCS2)  | pcs 
> ops | |
> + | +--------------+       UNIPHY0           | | UNIPHY1 | | UNIPHY2 
> |<--------+ |
> + +--------------->|                         | |         | |         |        
>    |
> + | 31.25M ref clk +-------------------------+ +---------+ +---------+        
>    |
> + |                   |     |      |      |          |          |             
>    |
> + |              +-----------------------------------------------------+      
>    |
> + |25/50M ref clk| +-------------------------+    +------+   +------+  | link 
>    |
> + +------------->| |      QUAD PHY           |    | PHY4 |   | PHY5 |  
> |---------+
> +                | +-------------------------+    +------+   +------+  | 
> change
> +                |                                                     |
> +                |                       MDIO bus                      |
> +                +-----------------------------------------------------+

Does the 'M' on the clk signals on the left side mean megahertz (MHz)?
I guess that it does, but it was a little confusing when I first saw it.

Thanks.
-- 
~Randy


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