DDR Data line connection between i.MX 6SoloX and DDR Memory

[andy_kim]

Hello,

When I check the reference schematic on AN5161,

DDR Data lines between i.MX 6SoloX and DDR Memory are not connected as below

Data0 to Data0, Data1 to Data1, .... Data31 to Data31.

Instead, the connection is complicated like

Data0 - Data16, Data1 - Data17,...

What is the reason of the DDR Data connection like that?

Can we connect them according to Data Number order as normal?

Thanks,

Andy

[Rita_Wang]

It's will be OK, you can change the order in one byte.

[andy_kim]

Dear 

Thanks for your prompt reply.

Is DDR operation OK even if DATA lines between i.MX and DDR memory are not connected in order while they are in one byte?

How i.MX and DDR find the right data lines respectively when data lines are connected out of order in one byte?

I am looking forward to seeing your reply.

Thanks,

Andy

[Rita_Wang · Accepted solution]

It will be OK.

Data transfer is a byte-byte transfer

[andy_kim]

Dear

Thank you for your explanation

[Rita_Wang]

You are welcome~~

Wish you have a nice day