ATSAMA5D41A-CU View Datasheet(PDF) - Atmel Corporation
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Description
MFG CO.
'ATSAMA5D41A-CU' PDF : 1808 Pages View PDF
6. 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 by which to select the one
required.
6.1 Embedded Characteristics
Timers, PWM, IO peripherals generate event triggers which are directly routed to event managers such as
ADC, for example, to start measurement/conversion without processor intervention.
UART, USART, SPI, TWI, PWM, HSMCI, AES, ADC, PIO, Timer (capture mode) also generate event
triggers directly connected to DMA Controller (XDMAC0 or XDMAC1) for data transfer without processor
intervention.
PWM safety events (faults) are in combinational form and directly routed from event generators (ADC, PMC,
Timer) to PWM module.
PMC safety event (clock failure detection) can be programmed to switch the MCK on reliable main RC
internal clock without processor intervention.
Table 6-1. Real-time Event Mapping List
Function
Application(s) Description
Event Source
Event Destination
General-purpose
Automatic switch to reliable main RC
oscillator in case of main crystal clock
failure(1)
Power Management
Controller (PMC)
PMC
General-purpose, Puts the PWM outputs in Safe mode (main Power Management
motor control
crystal clock failure detection)(1)(2)
Controller (PMC)
Safety
Motor control
Motor control
Puts the PWM outputs in Safe mode
(Overspeed, Overcurrent detection,
etc.)(2)(3)
Puts the PWM Outputs in Safe mode
(Overspeed, Overcurrent detection,
etc.)(2)(4)
Analog-to-Digital-Converter
(ADC)
Timer Counter Block 0
(channels TC0,TC1,TC2)
Pulse Width
Modulation (PWM)
General-purpose, Puts the PWM outputs in Safe mode
motor control
(general purpose fault inputs)(2)
Two IOs (PWM_FI0 and
PWM_FI1)
Measurement
trigger
General-purpose
Motor control
Trigger source selection in ADC(5)
ADC-PWM synchronization(6)(7)
Trigger source selection in ADC(5)
Timer Counter Block 0
(TIOA0,TIOA1,TIOA2)
PWM Event Line 0 and 1
ADC
Notes:
General-purpose Trigger source selection in ADC(5)
ADTRG
1. Refer to “Main Crystal Oscillator Failure Detection” in Section 26. “Power Management Controller (PMC)”.
2. Refer to “Fault Inputs” and “Fault Protection” in Section 46. “Pulse Width Modulation Controller (PWM)”.
3. Refer to “Fault Output” in Section 47. “Analog-to-Digital Converter (ADC)”.
4. Refer to “Fault Mode” in Section 45. “Timer Counter (TC)”.
5. Refer to “Conversion Triggers” and the “ADC Mode Register” (ADC_MR) in Section 47. “Analog-to-Digital Converter
(ADC)”.
6. Refer to “PWM Comparison x Value Register” (PWM_CMPVx) in Section 46. “Pulse Width Modulation Controller (PWM)”.
7. Refer to “PWM Comparison Units” and “PWM Event Lines” in Section 46. “Pulse Width Modulation Controller (PWM)”.
SAMA5D4 Series [DATASHEET]
35
Atmel-11238C-ATARM-SAMA5D4-Datasheet_12-Jul-16
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