AT86RF233 Datasheet, PDF (188/196 Pages) ATMEL Corporation – Low Power, 2.4GHz Transceiver for ZigBee, RF4CE, IEEE 802.15.4, 6LoWPAN, and ISM Applications

Appendix B - Errata
AT86RF233 Rev. A
Potential long PLL settling duration
In very rare cases a PLL_LOCK interrupt is not generated within the specified
maximum t_{PLL_INIT} = 250µs PLL lock duration.
Problem Fix/Workaround
In such a case perform the following action:
- read the register bits PLL_CF (register 0x1A, PLL_CF)
- invert the LSB bit
- write the value back to the PLL_CF register; keep upper four bits as
read before
- wait a additional typical t_{PLL_INIT} = 80µs duration or until interrupt is
generated
188 _AT86RF233
8351B–MCU Wireless–06/12