Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet
Product codes
ATSAMD21-XPRO
1001
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
Check that the lockbits: DFLLLCKC and DFLLLCKF in the SYSCTRL Interrupt Flag Status and
Clear register (INTFLAG) are both set before enabling the DFLLOOB interrupt.
Clear register (INTFLAG) are both set before enabling the DFLLOOB interrupt.
3 - The DFLL status bits in the PCLKSR register during the USB clock recovery mode can be
wrong after a USB suspend state. Errata reference: 11938
wrong after a USB suspend state. Errata reference: 11938
Fix/Workaround:
Do not monitor the DFLL status bits in the PCLKSR register during the USB clock recovery mode.