pub type W = W<DRrs>;
Register DR writer
DR
struct W { /* private fields */ }
Bits 0:3 - Date units in BCD format
Bits 4:5 - Date tens in BCD format
Bits 8:11 - Month units in BCD format
Bit 12 - Month tens in BCD format
Bits 13:15 - Week day units
Bits 16:19 - Year units in BCD format
Bits 20:23 - Year tens in BCD format