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By default, a new conversion starts when a new start software or event trigger is received. It is also
possible to automatically enable an ADC conversion by writing '1' to the AUTOSTART bit in DSEQCTRL
register (DSEQCTRL.AUTOSTART). When set, the ADC automatically starts a new conversion when a
DMA sequence is complete.
Note:  If averaging or oversampling is enabled, the new conversion automatically starts only when the
previous RESULT is available (averaging or oversampling operation is complete).
Note:  If the free-run mode is enabled (CTRLB.FREERUN=1), the new conversion automatically starts
when the previous RESULT is available and the DMA sequence is complete. As consequence, the
AUTOSTART bit has no effect in free-run operating mode.
Note:  If the conversion is triggered by event (EVCTRL.STARTEI=1), the automatic start conversion is
disabled and the AUTOSTART settings are ignored.
Related Links
22.6.2.7 Addressing
45.6.3.4 Master - Slave Operation
ADC1 will serve as a slave of ADC0 by writing a '1' to the Slave Enable bit in the Control A register of the
ADC1 instance (ADC1.CTRLA.SLAVEEN). When enabled, GCLK_ADC0 clock and ADC0 controls are
internally routed to the ADC1 instance.
SAM D5x/E5x Family Data Sheet
ADC – Analog-to-Digital Converter
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1601