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Highly Integrated Wireless MCU with CAN FD, Ethernet, USB, Motor Control, Graphics, Touch and Enhanced Security
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PIC32CX2051BZ62132
PIC32WM-BZ6204UE
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23
System Configuration and Register Locking (CFG)
23.3
Modes of Operation
Introduction
PIC32CX-BZ6
SoC Family Features
PIC32WM-BZ6
Module Features
1
Acronyms and Abbreviations
2
Ordering Information
3
Configuration Summary
4
PIC32CX-BZ6
SoC Description
5
PIC32WM-BZ6
Module Description
6
Pinout and Signal Descriptions List
7
I/O Ports and Peripheral Pin Select (PPS)
8
Power Subsystem
9
Product Memory Mapping Overview
10
Processor and Architecture
11
Prefetch Cache (PCHE)
12
Cortex M Cache Controller (CMCC)
13
Secure Boot ROM
14
eFuse Controller
15
Security Features
16
Flash Controller (FC)
17
Device Service Unit (DSU)
18
Clock and Reset Unit (CRU)
19
Power Management Unit (PMU)
20
Watchdog Timer (WDT)
21
Deadman Timer (DMT)
22
RAM Error Correction Code (RAMECC)
23
System Configuration and Register Locking (CFG)
23.1
Overview
23.2
Features
23.3
Modes of Operation
23.3.1
System Configuration Words
23.3.2
Alternate System Configuration Words
23.4
Locking and Unlocking the System Configuration Registers
23.5
NMI Events
23.6
Register Locking
23.7
Effects of Various Resets
23.8
Register Summary
23.9
Register Description
24
Peripheral Module Disable (PMD)
25
Peripheral Access Controller (PAC)
26
Real-Time Counter and Calendar (RTCC)
27
Direct Memory Access Controller (DMAC)
28
External Interrupt Controller (EIC)
29
Configurable Custom Logic (CCL)
30
Frequency Meter (FREQM)
31
Event System (EVSYS)
32
Serial Communication Interface (SERCOM)
33
SERCOM Synchronous and Asynchronous Receiver and Transmitter (SERCOM USART)
34
SERCOM Serial Peripheral Interface (SERCOM SPI)
35
SERCOM Inter-Integrated Circuit (SERCOM I
2
C)
36
Quad Serial Peripheral Interface (QSPI)
37
Analog-to-Digital Converter (ADC)
38
Automated Touch Sensing using the Enhance Capacitive Voltage Divider (CVD)
39
Analog Comparators (AC)
40
Digital-to-Analog Converter (DAC)
41
Timer/Counter (TC)
42
Timer/Counter for Control Applications (TCC)
43
Controller Area Network (CAN)
44
Universal Serial Bus (USB)
45
Ethernet Media Access Controller (ETH)
46
Quadrature Encoder Interface (QEI)
47
Low-Cost Controllerless (LCC)
48
802.15.4 Bluetooth® Radio Subsystem
49
Electrical Characteristics
50
Packaging Information
51
Appendix A: Regulatory Approval
52
Appendix B: Acronyms and Abbreviations
53
Document Revision History
Microchip Information
23.3 Modes of Operation
