XTAL OSC Configuration 0 Register
| START | Start/stop bit for the RC tuning calculation logic. If stopped the tuning logic is reset. |
| ENABLE | Enables the tuning logic to calculate new RC tuning values |
| BYPASS | Bypasses any calculated RC tuning value and uses the programmed register value. |
| INVERT | Invert the stepping of the calculated RC tuning value. |
| RC_OSC_PROG | RC osc. tuning values. |
| HYST_PLUS | Positive hysteresis value |
| HYST_MINUS | Negative hysteresis value |
| RC_OSC_PROG_CUR | The current tuning value in use. |