pub type R = R<SR_SPEC>;
Register SR reader
SR
struct R { /* private fields */ }
Bit 0 - SSI busy flag
Bit 1 - Transmit FIFO not full
Bit 2 - Transmit FIFO empty
Bit 3 - Receive FIFO not empty
Bit 4 - Receive FIFO full
Bit 5 - Transmission error
Bit 6 - Data collision error