pub type R = R<u32, SR>;
Reader of register SR
pub struct R { /* private fields */ }
Bits 8:12 - FIFO level
Bit 5 - Busy
Bit 4 - Timeout flag
Bit 3 - Status match flag
Bit 2 - FIFO threshold flag
Bit 1 - Transfer complete flag
Bit 0 - Transfer error flag