AM6442: DDR Data Bit Swapping question

cayden liu

Part Number: AM6442

As described in the application note, data can be exchanged within a group.

As shown in the figure below, DQ0 and DQ8 are two groups, so they cannot be data bit swapping, is that right？

0 cayden liu over 3 years ago

Sorry, I'll re-describe it to make sure the problem is clear.

Can I connect the QD0 of the MCU to the DQ8 of the DDR, and the QD8 of the MCU to the DQ0 of the DDR?

0 JJD over 3 years ago in reply to cayden liu

That is correct. All bit swaps must be within a byte, So you can swap within DQ0-7 or DQ8-15

Regards,

James

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