The event manager transfers digital events from one entity (for example, a peripheral) to another (for example, a second peripheral, the DMA or the CPU). The event manager implements event transfer through a defined set of event publishers (generators) and subscribers (receivers) that are interconnected through an event fabric containing a combination of static and programmable routes.

Events that are transferred by the event manager include:

• Peripheral event transferred to the CPU as an interrupt request (IRQ) (Static Event)
  • Example: GPIO interrupt is sent to the CPU
• Peripheral event transferred to the DMA as a DMA trigger (DMA Event)
  • Example: ADC trigger to DMA to request a DMA transfer
• Peripheral event transferred to another peripheral to directly trigger an action in hardware (Generic Event)
  • Example: TIMx timer peripheral publishes a periodic event to the ADC subscriber port, and the ADC uses the event to trigger start-of-sampling

For more details, see the Event chapter of the MSPM0 C-Series 24MHz Microcontrollers Technical Reference Manual.