Interrupt Flag Register
| HFRCORDY | HFRCO Ready Interrupt Flag | 
| HFXORDY | HFXO Ready Interrupt Flag | 
| LFRCORDY | LFRCO Ready Interrupt Flag | 
| LFXORDY | LFXO Ready Interrupt Flag | 
| AUXHFRCORDY | AUXHFRCO Ready Interrupt Flag | 
| CALRDY | Calibration Ready Interrupt Flag | 
| CALOF | Calibration Overflow Interrupt Flag | 
| USHFRCORDY | USHFRCO Ready Interrupt Flag | 
| HFXODISERR | HFXO Disable Error Interrupt Flag | 
| HFXOAUTOSW | HFXO Automatic Switch Interrupt Flag | 
| HFXOPEAKDETRDY | HFXO Automatic Peak Detection Ready Interrupt Flag | 
| HFRCODIS | HFRCO Disable Interrupt Flag | 
| LFTIMEOUTERR | Low Frequency Timeout Error Interrupt Flag | 
| DPLLRDY | DPLL Lock Interrupt Flag | 
| DPLLLOCKFAILLOW | DPLL Lock Failure Low Interrupt Flag | 
| DPLLLOCKFAILHIGH | DPLL Lock Failure Low Interrupt Flag | 
| LFXOEDGE | LFXO Clock Edge Detected Interrupt Flag | 
| LFRCOEDGE | LFRCO Clock Edge Detected Interrupt Flag | 
| ULFRCOEDGE | ULFRCO Clock Edge Detected Interrupt Flag | 
| CMUERR | CMU Error Interrupt Flag |