Data Sheet

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Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
z Bits 15:9 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bit 8 – SWEVT: Software Event
This bit is used to insert a software event on the channel selected by the CHANNEL.CHANNEL bit group.
This bit has the same behavior similar to an event.
This bit must be written together with CHANNEL.CHANNELusing a 16-bit write.
Writing a zero to this bit has no effect.
Writing a one to this bit will trigger a software event for the corresponding channel.
This bit will always return zero when read.
z Bits 7:4 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bits 3:0 – CHANNEL[3:0]: Channel Selection
These bits are used to select the channel to be set up or read from.
0x41 TC7 MC1 Match/Capture 1
0x42 ADC RESRDY Result Ready
0x43 ADC WINMON Window Monitor
0x44 AC COMP0 Comparator 0
0x45 AC COMP1 Comparator 1
0x46 AC WIN0 Window 0
0x47 DAC EMPTY Data Buffer Empty
0x48 PTC EOCReserved End of Conversion
0x49
PTC
WCOMPReserved
Window Comparator
0x4A AC1 COMP0 Comparator 0
0x4B AC1 COMP1 Comparator 1
0x4C AC1 WIN0 Window 0
0x4AD-0x7F Reserved
Table 23-4. Event Generator Selection (Continued)
Value Event Generator Description