The HF-LPT120a module (as used in a number of cheap Chinese WLAN-capable switches) uses a SoC called “MC300”. I have been unable to obtain any sort of comprehensive data sheet for that chip (architecture? instruction set? I/O addresses?).
Any ideas / pointers would be appreciated.
It’s also sold in the shop here.
https://www.robotshop.com/en/micro-uart-to-wifi-module-33v-pcb-antenna---mc300.html
No link to any data sheet. Owch.
Hi there @smurf and welcome to the forum!
I’ve already answered your question on private support but in case someone else is curious you can find all the documentation under the useful links section on the product description page 
