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Diffstat (limited to 'atmel-samd/asf4/samd51/hal/documentation/evsys.rst')
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diff --git a/atmel-samd/asf4/samd51/hal/documentation/evsys.rst b/atmel-samd/asf4/samd51/hal/documentation/evsys.rst new file mode 100644 index 000000000..01d40bc56 --- /dev/null +++ b/atmel-samd/asf4/samd51/hal/documentation/evsys.rst @@ -0,0 +1,24 @@ +=================== +Event system driver +=================== + +Event system allows autonomous, low-latency and configurable communication between peripherals. + +Several peripherals can be configured to generate and/or respond to signals known as events. The exact condition +to generate an event, or the action taken upon receiving an event, is specific to each peripheral. Peripherals that +respond to events are event users, peripherals that generate events are called event generators. A peripheral can have +one or more event generators and can have one or more event users. + +Communication is made without CPU intervention and without consuming system resources such as bus or RAM bandwidth. This +reduces the load on the CPU and system resources, compared to a traditional interrupt-based system. + +The Event System consists of several channels which route the internal events from generators +to users. Each event generator can be selected as source for multiple channels, but a channel cannot +be set to use multiple event generators at the same time. + +Event system driver allows to configure event system of an MCU. + +Limitations +----------- + + - Event channel configuration is static |