PD780133 datasheet(13/558 Pages) NEC

13 / 558 page

User’s Manual U16228EJ2V0UD

8.4.2

Operation as PWM output mode ..................................................................................................217

8.4.3

Carrier generator mode operation (8-bit timer H1 only) ................................................................223

CHAPTER 9 WATCH TIMER ............................................................................................................... 230

9.1

Functions of Watch Timer....................................................................................................... 230

9.2

Configuration of Watch Timer ................................................................................................ 232

9.3

Register Controlling Watch Timer.......................................................................................... 232

9.4

Watch Timer Operations ......................................................................................................... 234

9.4.1

Watch timer operation ..................................................................................................................234

9.4.2

Interval timer operation .................................................................................................................235

9.5

Cautions for Watch Timer ....................................................................................................... 236

CHAPTER 10 WATCHDOG TIMER ..................................................................................................... 237

10.1 Functions of Watchdog Timer ................................................................................................ 237

10.2 Configuration of Watchdog Timer.......................................................................................... 239

10.3 Registers Controlling Watchdog Timer ................................................................................. 240

10.4 Operation of Watchdog Timer ................................................................................................ 242

10.4.1

Watchdog timer operation when “Ring-OSC cannot be stopped” is selected by a mask option ...242

10.4.2

Watchdog timer operation when “Ring-OSC can be stopped by software” is selected by

mask option ..................................................................................................................................243

10.4.3

Watchdog timer operation in STOP mode (when “Ring-OSC can be stopped by software” is

selected by mask option) ..............................................................................................................244

10.4.4

Watchdog timer operation in HALT mode (when “Ring-OSC can be stopped by software” is

selected by mask option) ..............................................................................................................246

CHAPTER 11 CLOCK OUTPUT/BUZZER OUTPUT CONTROLLER............................................... 247

11.1 Functions of Clock Output/Buzzer Output Controller.......................................................... 247

11.2 Configuration of Clock Output/Buzzer Output Controller ................................................... 248

11.3 Register Controlling Clock Output/Buzzer Output Controller............................................. 248

11.4 Clock Output/Buzzer Output Controller Operations ............................................................ 250

11.4.1

Clock output operation..................................................................................................................250

11.4.2

Operation as buzzer output ..........................................................................................................250

CHAPTER 12 A/D CONVERTER ......................................................................................................... 251

12.1 Functions of A/D Converter .................................................................................................... 251

12.2 Configuration of A/D Converter.............................................................................................. 252

12.3 Registers Used in A/D Converter ........................................................................................... 254

12.4 A/D Converter Operations....................................................................................................... 259

12.4.1

Basic operations of A/D converter ................................................................................................259

12.4.2

Input voltage and conversion results ............................................................................................261

12.4.3

A/D converter operation mode......................................................................................................262

12.5 How to Read A/D Converter Characteristics Table .............................................................. 265

12.6 Cautions for A/D Converter..................................................................................................... 267

CHAPTER 13 SERIAL INTERFACE UART0 ...................................................................................... 272

13.1 Functions of Serial Interface UART0 ..................................................................................... 272

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