Articles
A nice article on CIC filters: https://tomverbeure.github.io/2020/09/30/Moving-Average-and-CIC-Filters.html. In particular I like the way he emphasizes the (limited) CIC use cases. The references at the end are really valuable too.
Evidently there's a name for the buffer I stumbled across in college: https://en.wikipedia.org/wiki/Diamond_buffer.
