M482 datasheet(3/401 Pages) NUVOTON

3 / 401 page

Mar 30, 2018

Page 3 of 401

Rev 1.00

NuMicro

® M480

32-bit ARM

Cortex

-M4F Microcontrolle

4.2.8

M480 Multi-function Summary Table Sorted by GPIO..................................................238

5 BLOCK DIAGRAM......................................................................................... 269

5.1NuMicro

® M480 Block Diagram ............................................................................................269

6 FUNCTIONAL DESCRIPTION....................................................................... 270

6.1ARM

® Cortex® -M4 Core ........................................................................................................270

6.2System Manager ...................................................................................................................273

6.2.1

Overview ......................................................................................................................273

6.2.2

System Reset ...............................................................................................................273

6.2.3

System Power Distribution ...........................................................................................279

6.2.4

Power Modes and Wake-up Sources ...........................................................................280

6.2.5

Power Modes Transition...............................................................................................284

6.2.6

System Memory Map....................................................................................................285

6.2.7

SRAM Memory Orginization .........................................................................................287

6.2.8

Bus Matrix ....................................................................................................................289

6.2.9

HIRC Auto Trim ............................................................................................................289

6.2.10 System Timer (SysTick) ...............................................................................................290

6.2.11 Nested Vectored Interrupt Controller (NVIC) ................................................................290

6.3Clock Controller.....................................................................................................................291

6.3.1

Overview ......................................................................................................................291

6.3.2

Clock Generator ...........................................................................................................293

6.3.3

System Clock and SysTick Clock .................................................................................294

6.3.4

Peripherals Clock .........................................................................................................295

6.3.5

Power-down Mode Clock..............................................................................................296

6.3.6

Clock Output.................................................................................................................296

6.3.7

USB Clock Source........................................................................................................297

6.4Flash Memeory Controller (FMC) .........................................................................................298

6.4.1

Overview ......................................................................................................................298

6.4.2

Features .......................................................................................................................298

6.5General Purpose I/O (GPIO).................................................................................................299

6.5.1

Overview ......................................................................................................................299

6.5.2

Features .......................................................................................................................299

6.6PDMA Controller (PDMA) .....................................................................................................300

6.6.1

Overview ......................................................................................................................300

6.6.2

Features .......................................................................................................................300

6.7Timer Controller (TMR) .........................................................................................................301

6.7.1

Overview ......................................................................................................................301

6.7.2

Features .......................................................................................................................301

6.8Watchdog Timer (WDT) ........................................................................................................303

6.8.1

Overview ......................................................................................................................303

6.8.2

Features .......................................................................................................................303

6.9Window Watchdog Timer (WWDT).......................................................................................304

6.9.1

Overview ......................................................................................................................304

6.9.2

Features .......................................................................................................................304

6.10

Real Time Clock (RTC)................................................................................................305

6.10.1 Overview ......................................................................................................................305

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