UART0 Modem Status Register.
| DCTSF | Detect CTS State Change Flag This bit is set whenever CTS input has change state, and it will generate Modem interrupt to CPU when IER [Modem_IEN]. NOTE: This bit is cleared by writing 1 to itself. |
| CTS_St | CTS Pin Status This bit is the pin status of CTS. |
| Lev_CTS | CTS Trigger Level This bit can change the CTS trigger level. 0= low level triggered 1= high level triggered |