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PIC32CZ CA70/MC70 Family Data Sheet PIC32CZ CA70/MC70
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PIC32CZ2051CA70064
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23
Power Management Controller (PMC)
23.20
Clock Switching Details
PIC32CZ CA70/MC70
32-bit Arm Cortex-M7 MCUs with FPU, Audio and Graphics Interfaces, High-Speed USB, Ethernet, and Advanced Analog
1
Configuration Summary
2
Guidelines for Getting Started
3
Ordering Information
4
Block Diagram
5
Package and Pinout
6
Signal Description
7
Power Supplies
8
Device Startup
9
Product Mapping
10
Input/Output Lines
11
Peripherals
12
Memories
13
Processor and Architecture
14
Debug and Test Features
15
Event System
16
System Controller
17
In-Application Programming (IAP)
18
Fast Flash Programming Interface (FFPI)
19
Bus Matrix (MATRIX)
20
Chip Identifier (CHIPID)
21
Enhanced Embedded Flash Controller (EEFC)
22
Clock Generator
23
Power Management Controller (PMC)
23.1
Description
23.2
Embedded Characteristics
23.3
Block Diagram
23.4
Host Clock Controller
23.5
Processor Clock Controller
23.6
SysTick External Clock
23.7
USB Full-Speed Clock Controller
23.8
Core and Bus Independent Clocks for Peripherals
23.9
Peripheral and Generic Clock Controller
23.10
Active Mode
23.11
Low-Power Modes
23.12
Fast Startup
23.13
Asynchronous Partial Wakeup
23.14
Free-running Processor Clock
23.15
Programmable Clock Output Controller
23.16
Startup from Embedded Flash
23.17
Main Crystal Oscillator Failure Detection
23.18
32.768 kHz Crystal Oscillator Frequency Monitor
23.19
Recommended Programming Sequence
23.20
Clock Switching Details
23.20.1
Host Clock Switching Timings
23.20.2
Clock Switching Waveforms
23.21
Register Write Protection
23.22
Register Summary
24
Supply Controller (SUPC)
25
Watchdog Timer (WDT)
26
Reinforced Safety Watchdog Timer (RSWDT)
27
Reset Controller (RSTC)
28
Real-Time Clock (RTC)
29
Real-Time Timer (RTT)
30
General Purpose Backup Registers (GPBR)
31
Parallel Input/Output Controller (PIO)
32
External Bus Interface (EBI)
33
Static Memory Controller (SMC)
34
DMA Controller (XDMAC)
35
Image Sensor Interface (ISI)
36
Ethernet MAC
37
USB Transmitter Macrocell Interface (UTMI)
38
USB High-Speed Interface (USBHS)
39
High-Speed Multimedia Card Interface (HSMCI)
40
Serial Peripheral Interface (SPI)
41
Quad Serial Peripheral Interface (QSPI)
42
Two-wire Interface (TWIHS)
43
Synchronous Serial Controller (SSC)
44
Inter-IC Sound Controller (I
2
SC)
45
Universal Synchronous Asynchronous Receiver Transceiver (USART)
46
Universal Asynchronous Receiver Transmitter (UART)
47
Media Local Bus (MLB)
48
Controller Area Network (CAN)
49
Timer Counter (TC)
50
Pulse Width Modulation (PWM) Controller
51
Analog Front-End Controller (AFEC)
52
Digital-to-Analog Converter Controller (DACC)
53
Analog Comparator Controller (ACC)
54
Integrity Check Monitor (ICM)
55
True Random Number Generator (TRNG)
56
Advanced Encryption Standard (AES)
57
Electrical Specifications 85°C
58
Electrical Specifications 105°C
59
Packaging Information
60
Schematic Checklist
61
Conventions
62
Acronyms and Abbreviations
63
Appendix A
64
Appendix B
65
Revision History
Microchip Information
23.20 Clock Switching Details
