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Ultra Low-Power, 32-bit Cortex-M23 MCUs with TrustZone, Crypto, and Enhanced PTC
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33
EVSYS – Event System
33.5
Functional Description
33.5.2
Basic Operation
Features
1
Configuration Summary
2
Ordering Information
3
Block Diagram
4
Pinouts
5
Signal Descriptions List
6
Power Considerations
7
Analog Peripherals Considerations
8
Device Startup
9
Product Mapping
10
Memories
11
Processor and Architecture
12
Peripherals Configuration Summary
13
SAM L11
Specific Security Features
14
Boot ROM
15
PAC - Peripheral Access Controller
16
Device Service Unit (DSU)
17
Clock System
18
GCLK - Generic Clock Controller
19
MCLK – Main Clock
20
FREQM – Frequency Meter
21
RSTC – Reset Controller
22
PM – Power Manager
23
OSCCTRL – Oscillators Controller
24
OSC32KCTRL – 32KHz Oscillators Controller
25
SUPC – Supply Controller
26
WDT – Watchdog Timer
27
RTC – Real-Time Counter
28
DMAC – Direct Memory Access Controller
29
EIC – External Interrupt Controller
30
NVMCTRL – Nonvolatile Memory Controller
31
TrustRAM (TRAM)
32
PORT - I/O Pin Controller
33
EVSYS – Event System
33.1
Overview
33.2
Features
33.3
Block Diagram
33.4
Product Dependencies
33.5
Functional Description
33.5.1
Principle of Operation
33.5.2
Basic Operation
33.5.2.1
Initialization
33.5.2.2
Enabling, Disabling, and Resetting
33.5.2.3
User Multiplexer Setup
33.5.2.4
Event System Channel
33.5.2.5
Event Generators
33.5.2.6
Channel Path
33.5.2.7
Edge Detection
33.5.2.8
Event Latency
33.5.2.9
The Overrun Channel n Interrupt
33.5.2.10
The Event Detected Channel n Interrupt
33.5.2.11
Channel Status
33.5.2.12
Software Event
33.5.2.13
Interrupt Status and Interrupts Arbitration
33.5.3
Interrupts
33.5.4
Sleep Mode Operation
33.6
Register Summary
33.7
Register Description
34
SERCOM – Serial Communication Interface
35
SERCOM USART - SERCOM Synchronous and Asynchronous Receiver and Transmitter
36
SERCOM SPI – SERCOM Serial Peripheral Interface
37
SERCOM I
2
C – SERCOM Inter-Integrated Circuit
38
TC – Timer/Counter
39
TRNG – True Random Number Generator
40
CCL – Configurable Custom Logic
41
ADC – Analog-to-Digital Converter
42
AC – Analog Comparators
43
DAC – Digital-to-Analog Converter
44
OPAMP – Operational Amplifier Controller
45
PTC - Peripheral Touch Controller
46
Electrical Characteristics
47
125°C Electrical Characteristics
48
AEC-Q100 Grade (-40°C to 125°C) Electrical Characteristics
49
AC and DC Characteristics Graphs
50
Packaging Information
51
Schematic Checklist
52
Conventions
53
Acronyms and Abbreviations
54
Appendix A: Migrating From SAM L21 to SAM L10/L11 (32-pin Package)
55
Appendix B: Migrating From SAM D20/D21 to SAM L10/L11 (32-pin Package)
56
Revision History
Legal Disclaimer
Microchip Information
33.5.2 Basic Operation
