16/20 MHz Oscillator Calibration A
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| CAL20M[6:0] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W |
| Reset | x | x | x | x | x | x | x |
Calibration
These bits change the frequency around the current center frequency of the OSC20M for fine-tuning.
At Reset, the factory-calibrated values are loaded based on the FREQSEL bit in FUSE.OSCCFG.