What's the difference between ls1043ase7qqa and ls1043ase7qqb?

[upartners]

The LS1043ARDB before the revision C1, the CPU is ls1043ase7qqa, but the revision C2 change CPU to LS1-43ASE8QQB.We refer to the LS1043ARDB to design our products based on LS1043ASE7QQA, but the distributor told us that the LS1043ASE7QQA would be the end of life and the nxp recommended LS1043ASE7QQB. Could you please tell me what are the changes from LS1043ASE7QQA to LS1043ASE7QQB? Is there a revision release note or changing list ?

Looking forward to your reply.
Have a great day.

[r8070z · Accepted solution]

Have a great day,

“B” suffix  means LS1043A rev. 1.1 (“A” suffix means rev. 1). The LS1043ASE8QQA page

https://www.nxp.com/webapp/webapp/search.partparamdetail.framework?PART_NUMBER=LS1043ASE8QQA

in section "Replacement Parts information for LS1043ASE8QQA" says

Replacement Part	Replacement Type	Replacement Reason
LS1043ASE8QQB	Same Form & Fit, Different Function, Pin-for-Pin Equivalent	Mask Set Revision (same fabrication site)

Migration PCN will be issued. Rev 1.1 silicon adds support for 64K pages for virtual machines, and for multiple PCIe MSI/MSI-X, which enables efficient spreading of interrupts across multiple cores. Customers who do not need these features will find the silicon revision change transparent, if they pick up the latest u-boot version which has been available since October 2016.

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