pub type R = R<GccfgSpec>;
Register GCCFG reader
GCCFG
struct R { /* private fields */ }
Bit 16 - Power on
Bit 18 - The VBUS A-device Comparer enable
Bit 19 - The VBUS B-device Comparer enable
Bit 20 - SOF output enable
Bit 21 - VBUS ignored