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About connection of IMX7 and Memory device

Question asked by okamoto satoshi on Nov 22, 2016
Latest reply on Dec 1, 2016 by okamoto satoshi

Hi There,

 

I want to check for IMX7.
I connect the IMX7 and LPDDR3.

 

①Can swapping other than the lower bits of the byte lane (Data bit) ?
 It is the contents of the following.
②Can swapping byte lanes (Data bit)?
 A.When using 32-bit memory, can swapping Byte lane 0 and Byte lane 3 ?
 B.Can freely swapping other byte lanes (Data lane 0/1/2/3)?
③Can swapping Address line?

 

//------------------------------------------------------------------------
For MCIMX6Q-SMART DEVICE PLATFORM
//------------------------------------------------------------------------
Using bit swapping for DATA bus to allow easy pcb routing.
When using data bit swapping the low order bit of each byte must reside at bit 0 of the byte.
The remaining 7 data bits can be swapped freely.
This restriction is for write leveling calibration.
Example D0 to D0 or D0 to D8, and D1-7 can be swapped.
When swapping byte lanes on 16-bit memories, remember to move the DQMx, DQSx, and DQSx_B signals for that byte lane.
//------------------------------------------------------------------------

 

Best regards
 - satoshi

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