Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet

Product codes

ATSAMD21-XPRO

996

Atmel | SMART SAM D21 [DATASHEET]

Atmel-42181C–SAM-D21_Datasheet–07/2014

None

2 - In Dual slope mode a Retrigger Event does not clear the TCC counter.
Errata reference: 12354

Fix/Workaround:

None

3 - In two ramp mode, two events will be generated per cycle, one on each
ramp’s end. EVCTRL.CNTSEL.END cannot be used to identify the end of a
double ramp cycle. Errata reference: 12224

Fix/Workaround:

None

4 - If an input event triggered STOP action is performed at the same time as
the counter overflows, the first pulse width of the subsequent counter start
can be altered with one prescaled clock cycle. Errata reference: 12107

Fix/Workaround:

None

5 - When the RUNSTDBY bit is written after the TCC is enabled, the
respective TCC APB bus is stalled and the RUNDSTBY bit in the TCC CTRLA
register is not enabled-protected. Errata reference: 12477

Fix/Workaround:

None.

6 - TCC fault filtering on inverted fault is not working. Errata reference:
12512

Fix/Workaround:

Use only non-inverted faults.

7 - When waking up from the STANDBY power save mode, the
SYNCBUSY.CTRLB and SYNCBUSY.STATUS bits may be locked to 1. Errata
reference: 12227

Fix/Workaround:

After waking up from STANDBY power save mode, perform a software reset of
the TCC if you are using the SYNCBUSY.CTRLB and SYNCBUSY.STATUS bits

8 - When the Peripheral Access Controller (PAC) protection is enabled,
writing to WAVE or WAVEB registers will not cause a hardware exception.
Errata reference: 11468

Fix/Workaround:

None