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32-bit Arm Cortex-M23 Low Power MCU with Security, Safety, CAN-FD, Full Speed USB, Touch and Advanced Analog
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PIC32CM5112GC00048
PIC32CM5112GC00064
PIC32CM5112GC00100
PIC32CM5112SG00048
PIC32CM5112SG00064
PIC32CM5112SG00100
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21
Main Clock (MCLK)
21.4
Functional Description
21.4.2
Basic Operation
32-bit Arm® Cortex®-M23 MCU with Security, Functional Safety (FuSa), CAN-FD, Full-Speed USB, Enhanced Touch, and Advanced Analog
1
Guidelines for Getting Started
2
Configuration Summary
3
Ordering Information
4
Block Diagram
5
Pinout and Packaging
6
Signal Description
7
Power Supplies and Startup Considerations
8
Product Mapping
9
Peripherals
10
Processor and Architecture
11
Memories
12
PIC32CM SG00/GC00
Security Features
13
Implementation Defined Attribution Unit (IDAU)
14
System Bus AHB - APB Bridge (H2PB)
15
Multi-Channel RAM Controller (MCRAMC)
16
Peripheral Access Controller (PAC)
17
Device Service Unit (DSU)
18
Clock Distribution System
19
Oscillator Controller (OSCCTRL)
20
Generic Clock Controller (GCLK)
21
Main Clock (MCLK)
21.1
Overview
21.2
Features
21.3
Block Diagram
21.4
Functional Description
21.4.1
Principle of Operation
21.4.2
Basic Operation
21.4.2.1
Enabling, Disabling, and Resetting
21.4.2.2
Selecting the Synchronous Clock Division Ratio
21.4.2.3
Clock Ready Flag
21.4.2.4
Peripheral Clock Masking
21.4.3
Interrupts
21.4.4
Sleep Mode Operation
21.4.5
Debug Operation
21.5
Peripheral Dependencies
21.6
MCLK AHB/APB Clock Enable Peripheral Mapping
21.7
Register Summary
22
32 KHz Oscillators Controller (OSC32KCTRL)
23
Watchdog Timer (WDT)
24
Frequency Meter (FREQM)
25
Real-Time Counter (RTC)
26
Direct Memory Access Controller (DMAC)
27
Supply Controller (SUPC)
28
Power Manager (PM)
29
Reset Controller (RSTC)
30
External Interrupt Controller (EIC)
31
Non-Volatile Memory Controller (NVMCTRL)
32
Event System (EVSYS)
33
I/O Pin Controller (PORT)
34
Serial Communication Interface (SERCOM)
35
Controller Area Network (CAN)
36
Universal Serial Bus (USB)
37
Configurable Custom Logic (CCL)
38
Analog to Digital Converter (ADC)
39
Analog Comparator (AC)
40
Timer/Counter for Control Applications (TCC)
41
TrustRAM (TRAM)
42
Peripheral Touch Controller (PTC)
43
Hardware Security Module Lite (HSM-Lite)
44
Anti-Tamper Module (AT)
45
Physically Uncloneable Function (PUF)
46
Electrical Characteristics
47
Packaging Information
48
Schematic Checklist
49
Common Conventions
50
Acronyms and Abbreviations
51
Revision History
Microchip Information
21.4.2 Basic Operation
