2.3.1 Enabling DFLL With Illegal Reference Oscillator Will Lock the Clock System
If selecting an external crystal as a reference for DFLL, but no crystal is connected, and DFLL is enabled, the DFLL will be locked until a reset is issued.
Work Around
Do not enable DFLL before the reference clock is present, enabled and ready.
Affected Silicon Revisions
| Rev. L |
| X |