Hey,
if I understand the intended use of Memorymap correctly, it should hold all information that is needed to write software for the SoC one is generating.
This works already quite well for me if I only have one "logical register" at one address. However, if I want to have registers which are smaller than 8 bits, and want to have them packed (e.g. when emulating the memory map of an existing peripheral to reuse driver code) I wasn't able to come up with a solution that expresses that using the current Memorymap class in a clean way.