Answer question
PM851 memory
for which 800XA version (5.1 rev B or 5.1 revC) PM851A controller has more memory (12 MB)
We have 800XA 5.1 Rev A with 32 bits and controller only has 8 MB.
we have only licenses to migrate to 800XA rev B or 800XA Rev C (our valid sentinel)
but I am no sure if in this versions of 800XA the controller PM851 really support more memory.
we are considering to update to rev C, but only if controller PM851 can use all 12 mb memory.
thanks in advance