UPD78F9222CS-CAC-A【PDF 24/125 页】MCU 8BIT 4KB FLASH 20PIN

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Sheet目录1971

User’s Manual U16898EJ6V0UD

7.4.1

Operation as interval timer......................................................................................................... 132

7.5

Notes on 8-bit Timer 80 ...........................................................................................................134

CHAPTER 8 8-BIT TIMER H1 .............................................................................................................135

8.1

Functions of 8-bit Timer H1.....................................................................................................135

8.2

Configuration of 8-bit Timer H1 ..............................................................................................135

8.3

Registers Controlling 8-bit Timer H1 .....................................................................................138

8.4

Operation of 8-bit Timer H1.....................................................................................................141

8.4.1

Operation as interval timer/square-wave output ........................................................................ 141

8.4.2

Operation as PWM output mode ............................................................................................... 144

CHAPTER 9 WATCHDOG TIMER .......................................................................................................150

9.1

Functions of Watchdog Timer ................................................................................................150

9.2

Configuration of Watchdog Timer ..........................................................................................152

9.3

Registers Controlling Watchdog Timer .................................................................................153

9.4

Operation of Watchdog Timer.................................................................................................155

9.4.1

Watchdog timer operation when “low-speed internal oscillator cannot be stopped” is selected by

option byte ................................................................................................................................. 155

9.4.2

Watchdog timer operation when “low-speed internal oscillator can be stopped by software” is

selected by option byte .............................................................................................................. 157

9.4.3

Watchdog timer operation in STOP mode (when “low-speed internal oscillator can be stopped by

software” is selected by option byte) ......................................................................................... 159

9.4.4

Watchdog timer operation in HALT mode (when “low-speed internal oscillator can be stopped by

software” is selected by option byte) ......................................................................................... 161

CHAPTER 10 A/D CONVERTER .........................................................................................................162

10.1 Functions of A/D Converter ....................................................................................................162

10.2 Configuration of A/D Converter ..............................................................................................164

10.3 Registers Used by A/D Converter ..........................................................................................166

10.4 A/D Converter Operations .......................................................................................................171

10.4.1

Basic operations of A/D converter ............................................................................................. 171

10.4.2

Input voltage and conversion results ......................................................................................... 173

10.4.3

A/D converter operation mode................................................................................................... 174

10.5 How to Read A/D Converter Characteristics Table ..............................................................176

10.6 Cautions for A/D Converter.....................................................................................................178

CHAPTER 11 SERIAL INTERFACE UART6 ......................................................................................182

11.1 Functions of Serial Interface UART6......................................................................................182

11.2 Configuration of Serial Interface UART6 ...............................................................................186

11.3 Registers Controlling Serial Interface UART6 ......................................................................189

11.4 Operation of Serial Interface UART6......................................................................................198

11.4.1

Operation stop mode ................................................................................................................. 198

11.4.2

Asynchronous serial interface (UART) mode............................................................................. 199

11.4.3

Dedicated baud rate generator .................................................................................................. 213

CHAPTER 12 INTERRUPT FUNCTIONS ............................................................................................220

12.1 Interrupt Function Types.........................................................................................................220

12.2 Interrupt Sources and Configuration .....................................................................................220

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