pub type R = R<u32, ISR>;
Reader of register ISR
pub struct R { /* private fields */ }
Bit 22 - REACK
Bit 21 - TEACK
Bit 20 - WUF
Bit 19 - RWU
Bit 18 - SBKF
Bit 17 - CMF
Bit 16 - BUSY
Bit 10 - CTS
Bit 9 - CTSIF
Bit 7 - TXE
Bit 6 - TC
Bit 5 - RXNE
Bit 4 - IDLE
Bit 3 - ORE
Bit 2 - NF
Bit 1 - FE
Bit 0 - PE