I wonder the meaning of "southbound and other terms" of Intel.

[idata]

Hello,

I need your help^^

I wonder what southbound / northbound lane means. Is the southbound for write operation between cup and memory?

and also what does mean of "the CPU during training", esp, I wonder the meaning of "training".

Pls, let me know in detail.

Many Thanks in advance.

Paul

[Silvia_L_Intel1]

Hello Paul Lee,

Could you please let me know where are you getting these terms from?

[idata]

Hello sylvia,

I found those terms when I read Intel Scalable Memory Interconnect(SMI) Lane Failover mechanism.

Thanks.

[Silvia_L_Intel1]

Paul,

Northbound is the direction from memory or a memory buffer, to the host memory controller.

Southbound is the direction from the memory controller to the memory or memory buffer.

Regarding "training", it refers to the process used for the memory controller to negotiate various parameters with the memory (CAS latency, RAS latency etc.).

Additional information on Northbound/Southbound concepts can be found on page 10, section 1.3.1 of this document:

http://www.intel.com/content/dam/doc/datasheet/7500-7510-7512-scalable-memory-buffer-datasheet.pdf http://www.intel.com/content/dam/doc/datasheet/7500-7510-7512-scalable-memory-buffer-datasheet.pdf

Regards.

[idata]

Hi sylvia,

I got it .

And linked document is also useful.

Thank you so much.

[Silvia_L_Intel1]

I'm glad to know it worked.

Regards.