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23 Watchdog Timer (WDT)
23.4 Functional Description
23.4.2 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)
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