How can the LS1012A RDB use a crystal and have SATA enabled at the same time?

cancel
Showing results for 
Search instead for 
Did you mean: 

How can the LS1012A RDB use a crystal and have SATA enabled at the same time?

242 Views
kennetholsen
Contributor I

I’m currently investigating if the LS1012A could be used for my next design.

While reading the QorIQ LS1012A Reference Manual, I found that (as I understand it) you can’t use a crystal as the main clock, if SATA is enabled. However when I look at the LS1012A RDB reference design board, it uses a 25MHz crystal and has a SATA connector, and Thus I would assume SATA can be enabled on the board?.

What am I missing?

 

From LS1012A Reference Manual:

4.4.6.2.4 SATA use cases

For the systems with a SATA interface, an external clock oscillator/generator is required,

as shown in the figure below:

Figure 4-10. SATA clocking

Crystal cannot be used when SATA is enabled on the chip."

Labels (1)
0 Kudos
2 Replies

126 Views
kennetholsen
Contributor I

You are correct, I had downloaded the REV-C version and not seen that a REV-D was also available.

Thank you!.

Kenneth

0 Kudos

126 Views
alexander_yakov
NXP TechSupport
NXP TechSupport

It looks like you have old revision board.

RDB board uses onboard oscillator with clock buffer starting from revision CX1 of the schematic.


Have a great day,
Alexander
TIC

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos