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When connecting with DDR memory, is it possible to swap data pins within the same byte lane as follows?

Latest Updated:12/02/2015

Question:

When connecting with DDR memory, is it possible to swap data pins within the same byte lane as follows?

[RZ/G1E]              [DDR memory]
M0DQ0     <->     DQ1
M0DQ1     <->     DQ0

Answer:

It is OK to pin swap within the same byte lane. If swapping will allow for cleaner wiring on the PCB design, please swap and wire as needed. However, pins cannot be swapped between two different byte lanes. Swapping between different byte lanes would cause the data/clock timing to become out of sync.
Suitable Products
RZ/G1E
RZ/G1M
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