SC422790DW info wanted

[mike diack]

This is a remote control chip made by Motorola
Hunting on the Moto and On Semi sites reveals nothing
Googling only reveals a herd of hawkers trying to sell them.
It's used in an automatic projection screen system I'm trying to hack.
Any data would be appreciated.
Cheers
Mike

 

[Lewin A.R.W. Edwards]

Hunting on the Moto and On Semi sites reveals nothing
Googling only reveals a herd of hawkers trying to sell them.

Likely a custom-ROM microcontroller.