The R1 to R2 FW change list (TI publication slua833.pdf), Table-1, item 5 introduces parallel cell balancing as a new feature in R2, which did not exist in R1. It references this feature to CBM, which was RESERVED in R1. It also notes that "adjacent cells will not be balanced", implying that you can either balance series stacked (4s) single cells, or balance paralleled single cell packs, but not both.
Is there any documentation describing this new feature?
Is there any reference design for the external hw required to support parallel cell balancing?