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32-bit Connectivity MCU with Integrated Security PIC32CZ CA80/CA90 Family
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PIC32CZ2051CA80100
PIC32CZ2051CA80144
PIC32CZ2051CA80176
PIC32CZ2051CA80208
PIC32CZ2051CA90100
PIC32CZ2051CA90144
PIC32CZ2051CA90176
PIC32CZ2051CA90208
PIC32CZ4010CA80100
PIC32CZ4010CA80144
PIC32CZ4010CA80176
PIC32CZ4010CA80208
PIC32CZ4010CA90100
PIC32CZ4010CA90144
PIC32CZ4010CA90176
PIC32CZ8110CA80100
PIC32CZ8110CA80144
PIC32CZ8110CA80176
PIC32CZ8110CA80208
PIC32CZ8110CA90100
PIC32CZ8110CA90144
PIC32CZ8110CA90176
PIC32CZ8110CA90208
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21
Main Clock (MCLK)
21.5
Functional Description
21.5.2
Basic Operation
PIC32CZ CA80/CA90 Family
Up to 8 MB Flash, 1 MB SRAM, Hardware Security Module, Secure Boot, Floating Point Unit (FPU), Advanced Analog, Gigabit Ethernet, HS USB, CAN FD, and Peripheral Touch Controller (PTC)
1
Configuration Summary
2
Guidelines for Getting Started
3
Ordering Information
4
Block Diagram
5
Pinout
6
Signal Description
7
Power Supplies and Startup Considerations
8
Product Mapping
9
Peripherals
10
Processor and Architecture
11
Memories
12
Hardware Security Module (HSM)
13
Multi-Channel RAM Controller (MCRAMC)
14
Tightly Coupled Memory with ECC (TCM)
15
Peripheral Access Controller (PAC)
16
Device Service Unit (DSU)
17
Clock Distribution System
18
Oscillator Controller (OSCCTRL)
19
32 KHz Oscillators Controller (OSC32KCTRL)
20
Generic Clock Controller (GCLK)
21
Main Clock (MCLK)
21.1
Overview
21.2
Features
21.3
Block Diagram
21.4
Peripheral Dependencies
21.5
Functional Description
21.5.1
Principle of Operation
21.5.2
Basic Operation
21.5.2.1
Initialization
21.5.2.2
Enabling, Disabling, and Resetting
21.5.2.3
Selecting the Main Clock Source
21.5.2.4
Selecting the Synchronous Clock Division Ratio
21.5.2.5
Clock Ready Flag
21.5.2.6
Peripheral Clock Masking
21.5.3
Interrupts
21.5.4
Sleep Mode Operation
21.6
Register Summary
22
Watchdog Timer (WDT)
23
Frequency Meter (FREQM)
24
Real-Time Counter (RTC)
25
Direct Memory Access Controller (DMAC)
26
Supply Controller (SUPC)
27
Power Manager (PM)
28
Reset Controller (RSTC)
29
External Interrupt Controller (EIC)
30
MLB Media Local Bus (MLB)
31
Non-Volatile Memory Controller (NVMCTRL)
32
Gigabit Ethernet Media Access Controller (GMAC / ETH)
33
Event System (EVSYS)
34
I/O Pin Controller (PORT)
35
Serial Communication Interface (SERCOM)
36
Serial Quad Interface (SQI)
37
Hi-Speed Universal Serial Bus (USB)
38
Controller Area Network (CAN)
39
External Bus Interface (EBI)
40
SD/MMC Host Controller (SDHC)
41
True Random Number Generator (TRNG)
42
Analog-to-Digital Converter (ADC)
43
Analog Comparators (AC)
44
Timer/Counter for Control Applications (TCC)
45
TrustRAM (TRAM)
46
Peripheral Touch Controller (PTC)
47
SPI/I
2
S/I
8
S Controller
48
Electrical Characteristics
49
Packaging Information
50
Schematic Checklist
51
Common Conventions
52
Acronyms and Abbreviations
53
Revision History
Microchip Information
21.5.2 Basic Operation
