RUIRQ=0, ROIRQ=0, IIRQ=0, IDST=0, TUIRQ=0, TOIRQ=0
Status Register
| IDST | Idle Mode Status Flag 0 (0): Serial bus is operating. 1 (1): The current communication is stopped. |
| RSWNO | Receive Serial Word Number |
| RCHNO | Receive Channel Number.These bits are read as 00b. |
| TSWNO | Transmit Serial Word Number |
| TCHNO | Transmit Channel Number |
| IIRQ | Idle Mode Interrupt Status Flag 0 (0): This module is not in idle state. 1 (1): This module is in idle state. |
| ROIRQ | Receive Overflow Error Interrupt Status Flag NOTE: Writable only to clear the flag. Confirm the value is 1 and then write 0. 0 (0): No receive overflow has occurred. 1 (1): A receive overflow has occurred. |
| RUIRQ | Receive Underflow Error Interrupt Status Flag NOTE: Writable only to clear the flag. Confirm the value is 1 and then write 0. 0 (0): No receive underflow has occurred. 1 (1): A receive underflow has occurred. |
| TOIRQ | Transmit Overflow Error Interrupt Status Flag NOTE: Writable only to clear the flag. Confirm the value is 1 and then write 0. 0 (0): No transmit overflow has occurred. 1 (1): A transmit overflow has occurred. |
| TUIRQ | Transmit Underflow Error Interrupt Status Flag NOTE: Writable only to clear the flag. Confirm the value is 1 and then write 0. 0 (0): No transmit underflow has occurred. 1 (1): A transmit underflow has occurred. |