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Programmable peripheral interconnect, nRF52
Chapter 20 of the nRF52832 Objective Product Specification v0.6.3:
The PPI provides a mechanism to automatically trigger a task in one peripheral as a result of an event occurring in another peripheral. A task is connected to an event through a PPI channel. The PPI channel is composed of three end point registers, one event end point (EEP) and two task end points (TEP). A peripheral task is connected to a TEP using the address of the task register associated with the task. Similarly, a peripheral event is connected to an EEP using the address of the event register associated with the event.
Pre-programmed Channels (Channel EEP TEP):
- 20
TIMER0->EVENTS_COMPARE[0]
RADIO->TASKS_TXEN
- 21
TIMER0->EVENTS_COMPARE[0]
RADIO->TASKS_RXEN
- 22
TIMER0->EVENTS_COMPARE[1]
RADIO->TASKS_DISABLE
- 23
RADIO->EVENTS_BCMATCH
AAR->TASKS_START
- 24
RADIO->EVENTS_READY
CCM->TASKS_KSGEN
- 25
RADIO->EVENTS_ADDRESS
CCM->TASKS_CRYPT
- 26
RADIO->EVENTS_ADDRESS
TIMER0->TASKS_CAPTURE[1]
- 27
RADIO->EVENTS_END
TIMER0->TASKS_CAPTURE[2]
- 28
RTC0->EVENTS_COMPARE[0]
RADIO->TASKS_TXEN
- 29
RTC0->EVENTS_COMPARE[0]
RADIO->TASKS_RXEN
- 30
RTC0->EVENTS_COMPARE[0]
TIMER0->TASKS_CLEAR
- 31
RTC0->EVENTS_COMPARE[0]
TIMER0->TASKS_START
§Authors
- Johan Lindskogen
- Francine Mäkelä
- Date: May 04, 2018