M261 datasheet(3/398 Pages) NUVOTON

3 / 398 page

M261/M262/M263

Mar 25, 2020

Page 3 of 398

Rev 1.02

6.2.1 Overview........................................................................................................................268

6.2.2 Reset ..............................................................................................................................268

6.2.3 Power Modes and Wake-up Sources ........................................................................274

6.2.4 System Power Distribution ..........................................................................................278

6.2.5 Bus Matrix......................................................................................................................280

6.2.6 System Memory Map ...................................................................................................280

6.2.7 SRAM Memory Orginization .......................................................................................283

6.2.8 Auto Trim .......................................................................................................................285

6.2.9 System Timer (SysTick)...............................................................................................286

6.2.10Nested Vectored Interrupt Controller (NVIC)............................................................286

6.3 Clock Controller ......................................................................................................... 292

6.3.1 Overview........................................................................................................................292

6.3.2 Clock Generator............................................................................................................295

6.3.3 System Clock and SysTick Clock...............................................................................297

6.3.4 Peripherals Clock .........................................................................................................298

6.3.5 Power-down Mode Clock ............................................................................................299

6.3.6 Clock Output .................................................................................................................299

6.4 True Random Number Generator (TRNG) ............................................................ 300

6.4.1 Overview........................................................................................................................300

6.4.2 Features.........................................................................................................................300

6.5 Flash Memeory Controller (FMC) ........................................................................... 301

6.5.1 Overview........................................................................................................................301

6.5.2 Features.........................................................................................................................301

6.6 General Purpose I/O (GPIO) ................................................................................... 302

6.6.1 Overview........................................................................................................................302

6.6.2 Features.........................................................................................................................302

6.7 PDMA Controller (PDMA)......................................................................................... 303

6.7.1 Overview........................................................................................................................303

6.7.2 Features.........................................................................................................................303

6.8 Timer Controller (TMR)............................................................................................. 304

6.8.1 Overview........................................................................................................................304

6.8.2 Features.........................................................................................................................304

6.9 Watchdog Timer (WDT)............................................................................................ 306

6.9.1 Overview........................................................................................................................306

6.9.2 Features.........................................................................................................................306

6.10

Window Watchdog Timer (WWDT)................................................................... 307

6.10.1Overview........................................................................................................................307

6.10.2Features.........................................................................................................................307

6.11

Real Time Clock (RTC)....................................................................................... 308

6.11.1 Overview........................................................................................................................308

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