Interrupt Enable Clear
| RXC | Receive Data Register Full Interrupt Disable  |  
| DRE | Transmit Data Register Empty Interrupt Disable  |  
| TXC | Transmission Complete Interrupt Disable  |  
| ERROR | Overrun Error Interrupt Disable  |  
| CSRISE | Chip Select Rise Interrupt Disable  |  
| INSTREND | Instruction End Interrupt Disable  |