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PIC32CX-BZ2 and WBZ45 Family Data Sheet
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PIC32CX1012BZ24032
PIC32CX1012BZ25048
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12
Device Service Unit (DSU)
12.11
Functional Description
Introduction
PIC32CX-BZ2
SoC Family Features
WBZ45
Module Features
Acronyms and Abbreviations
1
Ordering Information
2
Configuration Summary
3
PIC32CX-BZ2
SoC Description
4
WBZ45
Module Description
5
Pinout and Signal Descriptions List
6
I/O Ports and Peripheral Pin Select (PPS)
7
Power Subsystem
8
Product Memory Mapping Overview
9
Prefetch Cache (PCHE)
10
Processor and Architecture
11
Cortex M Cache Controller (CMCC)
12
Device Service Unit (DSU)
12.1
Overview
12.2
Features
12.3
Block Diagram
12.4
Signal Description
12.5
Product Dependencies
12.6
Debug Operation
12.7
Chip Erase
12.8
Programming
12.9
Intellectual Property Protection
12.10
Device Identification
12.11
Functional Description
12.11.1
Principle of Operation
12.11.2
Basic Operation
12.11.3
32-bit Cyclic Redundancy Check CRC32
12.11.4
Debug Communication Channels
12.11.5
System Services Availability when Accessed Externally and Device is Protected
12.12
DSU Register Summary
12.13
Register Description
13
Clock and Reset Unit (CRU)
14
RAM Error Correction Code (RAMECC)
15
Power Management Unit (PMU)
16
Watchdog Timer (WDT)
17
Deadman Timer (DMT)
18
System Configuration and Register Locking (CFG)
19
Register Locking
20
Peripheral Module Disable Register (PMD)
21
Real-Time Counter and Calendar (RTCC)
22
Direct Memory Access Controller (DMAC)
23
External Interrupt Controller (EIC)
24
Flash Memory
25
Integrity Check Monitor (ICM)
26
Peripheral Access Controller (PAC)
27
Frequency Meter (FREQM)
28
Event System (EVSYS)
29
Serial Communication Interface (SERCOM)
30
SERCOM Synchronous and Asynchronous Receiver and Transmitter (SERCOM USART)
31
SERCOM Serial Peripheral Interface (SERCOM SPI)
32
SERCOM Inter-Integrated Circuit (SERCOM I
2
C)
33
Quad Serial Peripheral Interface (QSPI)
34
Configurable Custom Logic (CCL)
35
True Random Number Generator (TRNG)
36
Advanced Encryption Standard (AES)
37
Public Key Cryptography Controller (PUKCC)
38
Analog-to-Digital Converter (ADC)
39
Analog Comparators (AC)
40
Timer/Counter (TC)
41
Timer/Counter for Control Applications (TCC)
42
Zigbee® Bluetooth® Radio Subsystem
43
Electrical Characteristics
44
Packaging Information
45
Appendix A: Regulatory Approval
46
Appendix B: Acronyms and Abbreviations
47
Document Revision History
Microchip Information
12.11 Functional Description
