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Title: Structural difference of 4GB and 8GB LPDDR4x [Print This Page]

Author: cuckoo933    Time: 8/30/2022 13:39
Title: Structural difference of 4GB and 8GB LPDDR4x
Last edited by cuckoo933 In 8/30/2022 14:04 Editor

I checked DRAM datashets.
The DRAM structure of ROC-RK3588S-PC with 4GB LPDDR4x version is like as below.


And, the 8GB LPDDR4x version is like as below.



The structural difference was whether it was a 1-rank(1CS) product or a 2-rank(2CS) product.
Is it right ?

I think if the rank structure of LPDDR4x changes like this then it need to modify the uboot codes.But I don't know where can I find the modify points.
Please teach me.





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