Your title says RS0010.
Your link in #3 says AIP31066 / WS0012
RS0010, WS0010, AIP31068 all seem to be the same.
I can't find a WS0012 datasheet.
You just have to compare AIP31066 datasheet with the WS0010 datasheet. And then look at the CrystalFontz WS0010 example code.
I would bet that the AIP31066 / WS0012 will work immediately in 8-bit parallel from power-up. Just like most other Character Displays.
It only becomes complicated when you want to select 4-bit parallel.
David.