pub type R = R<RISR_SPEC>;
Register RISR reader
RISR
struct R { /* private fields */ }
Bit 0 - Transmit FIFO empty raw interrupt status
Bit 1 - Transmit FIFO overflow raw interrupt status
Bit 2 - Receive FIFO underflow raw interrupt status
Bit 3 - Receive FIFO overflow raw interrupt status
Bit 4 - Receive FIFO full raw interrupt status
Bit 5 - Multi-master contention raw interrupt status