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SAM4CP [DATASHEET]
43051E–ATPL–08/14
9.
Real-time Event Management
The events generated by peripherals are designed to be directly routed to peripherals managing/using these events
without processor intervention. Peripherals receiving events contain logic to select the required event.
9.1
Embedded Characteristics
Timers generate event triggers which are directly routed to event managers, such as ADC, to start
measurement/conversion without processor intervention.
UART, USART, SPI, TWI, and PIO generate event triggers directly connected to Peripheral DMA controller (PDC)
for data transfer without processor intervention.
PMC Security Event (Clock Failure Detection) can be programmed to switch the MCK on reliable main RC internal
clock.
9.2
Real-time Event Mapping List
Table 9-1.
Real-time Event Mapping List
Event Generator
Event Manager
Function
Anti-tamper Inputs (TMPx)
General Purpose Backup Register
(GPBR)
Security / Immediate GPBR clear (asynchronous) on
Anti-tamper detection through pins
Power Management Controller
(PMC)
PMC
Safety / Automatic Switch to Reliable Main RC oscillator
in case of Main Crystal Clock Failure
IO (ADTRG)
ADC
Trigger for measurement. Selection in ADC module
TC Output 0
ADC
Trigger for measurement. Selection in ADC module
TC Output 1
ADC
Trigger for measurement. Selection in ADC module
TC Output 2
ADC
Trigger for measurement. Selection in ADC module
TC Output 3
ADC
Trigger for measurement. Selection in ADC module
TC Output 4
ADC
Trigger for measurement. Selection in ADC module
TC Output 5
ADC
Trigger for measurement. Selection in ADC module