35.3.3 Events

An op amp must be in EVENT_ENABLED or SW_ENABLED_WITH_EVENTS mode to generate events and respond to incoming events. To select EVENT_ENABLED mode for OPn, the EVENTEN bit in OPnCTRLA must be written to ‘1’, and the ALWAYSON bit must be written to ‘0’. To select SW_ENABLED_WITH_EVENTS mode for OPn, the EVENTEN bit in OPnCTRLA must be written to ‘1’, and the ALWAYSON bit must be written to ‘1’.

OPn can generate the event as described in the table below.

Table 35-1. Event Generators in OPAMP
Generator Name		Description	Event Type	Generating Clock Domain	Length of Event
Peripheral	Event	Description	Event Type	Generating Clock Domain	Length of Event
OPAMP	READYn	OPn is ready	Pulse	CLK_PER	One CLK_PER period

The table below describes the event users for OPn and their associated functionality.

Table 35-2. Event Users in OPAMP
User Name		Description	Input Detection	Async/Sync
Peripheral	Input	Description	Input Detection	Async/Sync
OPAMP	ENABLEn	Enable OPn	Edge	Async
OPAMP	DISABLEn	Disable OPn	Edge	Sync
OPAMP	DUMPn	Dump OPn V_OUT to V_INN	Level	Sync
OPAMP	DRIVEn	Enable OPn output driver in NORMAL mode	Level	Sync

Refer to the Event System (EVSYS) section for more details regarding event types and Event System configuration.