2.2.2 Writing the OSCLOCK Fuse in FUSE.OSCCFG to '1' Prevents Automatic Loading of Calibration Values
Writing the OSCLOCK fuse in FUSE.OSCCFG to ‘1’ prevents
the automatic loading of calibration values from the signature row. The device will
run with an uncalibrated OSC20M oscillator.
Work around
Do not use OSCLOCK for locking the oscillator calibration value. The
oscillator calibration value can be locked by writing LOCK in CLKCTRL.OSC20MCALIBB
to ‘1’.
Affected Silicon Revisions
| Rev. A | Rev. B |
| X | X |