16/20 MHz Oscillator Calibration B

Name:
OSC20MCALIBB
Offset:
0x12
Reset:
Based on FUSE.OSCCFG
Access:
Configuration Change Protection
Bit76543210
LOCKTEMPCAL20M[3:0]
AccessRR/WR/WR/WR/W
Resetxxxxx

Bit 7 – LOCK: Oscillator Calibration Locked by Fuse

Oscillator Calibration Locked by Fuse

When this bit is set, the calibration settings in CLKCTRL.OSC20MCALIBA and CLKCTRL.OSC20MCALIBB cannot be changed.

The reset value is loaded from the OSCLOCK bit in the Oscillator Configuration Fuse (FUSE.OSCCFG).

Bits 3:0 – TEMPCAL20M[3:0]: Oscillator Temperature Coefficient Calibration

Oscillator Temperature Coefficient Calibration

These bits tune the slope of the temperature compensation.

At Reset, the factory calibrated values are loaded based on the FREQSEL bits in FUSE.OSCCFG.