I took apart an old Huawei 3G wifi modem, hoping to leave the radio stuff, and find an off the shelf MCU in there.
Aside from an Atheros wifi chip, and a Hynix memory chip, the only other ones not to do with RF are:
Hi 6755RBC / 120 / HP0221122
And:
Hi 6331RBC / 381 / CP0051127
However, I can find nothing about them. Can't even establish which company this is.
The modem exposes an admin web page, so I'm sure one of those must be doing the business!
Best Answer
It could be that Hi is Huawei. It could be an ASIC commissioned by Huawei. Sometimes, board-level manufacturers order standard chips with special markings. This is done to hinder reverse-engineering.