Constant UMBRELLA_CENTER_THRESH 

pub const UMBRELLA_CENTER_THRESH: MTBRegister<'static>;

Set the (nhit) threshold for the umbrealla center

Requires the configurable trigger to be enabled!

UMBRELLA_CENTER_THRESH 0x16 0x58 [15:8] rw 0x0 Threshold for the hit bitmap. Threshold must be > this number.