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iMX8M mini DDR Board Data Bus Configuration in RPA tool (MX8M_Mini_LPDDR4_RPA_v15.xlsx)

Question asked by Girish Prasad on Jun 30, 2020
Latest reply on Jul 1, 2020 by Girish Prasad


I am trying to understand the DDR configuration for iMX8M mini, since soon i will be working on custom board based on iMX8M mini. 


I am trying to configure the "BoardDataBusConfig" in "MX8M_Mini_LPDDR4_RPA_v15.xlsx". As per iMX8M mini evk schematic Lane A & B are swapped.  

And the original "BoardDataBusConfig" has the below configuration

I have changed this configuration as shown below 

With both original configuration and modified configuration DDR calibration is PASSED.   Please help me in understanding what is differences between the above configuration? which one is correct configuration? Please provide directions to fill up the tab "BoardDataBusConfig" in the RPA tool.