STARTUP=CYCLE1, CFDPRESC=DIV1
External Multipurpose Crystal Oscillator Control
| ENABLE | Oscillator Enable |
| XTALEN | Crystal Oscillator Enable |
| RUNSTDBY | Run in Standby |
| ONDEMAND | On Demand Control |
| LOWBUFGAIN | Low Buffer Gain Enable |
| IPTAT | Oscillator Current Reference |
| IMULT | Oscillator Current Multiplier |
| ENALC | Automatic Loop Control Enable |
| CFDEN | Clock Failure Detector Enable |
| SWBEN | Xosc Clock Switch Enable |
| STARTUP | Start-Up Time 0 (CYCLE1): 31 us 1 (CYCLE2): 61 us 2 (CYCLE4): 122 us 3 (CYCLE8): 244 us 4 (CYCLE16): 488 us 5 (CYCLE32): 977 us 6 (CYCLE64): 1953 us 7 (CYCLE128): 3906 us 8 (CYCLE256): 7813 us 9 (CYCLE512): 15625 us 10 (CYCLE1024): 31250 us 11 (CYCLE2048): 62500 us 12 (CYCLE4096): 125000 us 13 (CYCLE8192): 250000 us 14 (CYCLE16384): 500000 us 15 (CYCLE32768): 1000000 us |
| CFDPRESC | Clock Failure Detector Prescaler 0 (DIV1): 48 MHz 1 (DIV2): 24 MHz 2 (DIV4): 12 MHz 3 (DIV8): 6 MHz 4 (DIV16): 3 MHz 5 (DIV32): 1.5 MHz 6 (DIV64): 0.75 MHz 7 (DIV128): 0.3125 MHz |