Control Module documentation....

I'm trying to locate The Control Module documentation, specifically the documentation that describes the lower addresses (not pinmux or peripherals), like the CONTROL_STATUS register.  In looking trhu some GEL files I can see that the CONTROL_STATUS register is at 0x48140040, but I can't seem to find any documentation on that register other than a reference to it in section 4.2 Boot Modes in the Datasheet.