3819 datasheet(7/218 Pages) RENESAS

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3819 Group USER’S MANUAL

Table of contents

RESET circuit ................................................................................................................................. 46

Clock generating circuit ............................................................................................................... 48

Frequency control ...................................................................................................................... 48

Oscillation control ...................................................................................................................... 48

Notes on programming ................................................................................................................ 51

Processor status register ........................................................................................................... 51

Interrupts ................................................................................................................................... 51

Decimal calculations .................................................................................................................. 51

Timers ........................................................................................................................................ 51

Multiplication and division instructions....................................................................................... 51

Ports .......................................................................................................................................... 51

Serial I/O .................................................................................................................................... 51

A-D converter ............................................................................................................................ 51

Instruction execution timing ....................................................................................................... 51

At the STP instruction release ................................................................................................... 51

Data required for mask orders .................................................................................................. 52

PROM programming method ....................................................................................................... 52

Absolute maximum ratings .......................................................................................................... 53

Recommended operating conditions ......................................................................................... 53

Electrical characteristics .............................................................................................................. 55

Zero cross detection input characteristics .............................................................................. 57

A-D converter characteristics ...................................................................................................... 57

D-A converter characteristics ...................................................................................................... 57

Timing requirements ..................................................................................................................... 58

Switching characteristics ............................................................................................................. 58

Timing diagram .............................................................................................................................. 59

Power source current characteristic examples ....................................................................... 60

Port standard characteristic examples ...................................................................................... 61

A-D conversion standard characteristics .................................................................................. 63

D-A conversion standard characteristics .................................................................................. 64

Functional description supplement ............................................................................................ 65

Interrupt ..................................................................................................................................... 65

Timing after interrupt ................................................................................................................. 66

A-D converter ............................................................................................................................ 67

CHAPTER 2. APPLICATION

2.1 I/O port ..................................................................................................................................... 70

2.1.1 Related registers .............................................................................................................. 70

2.1.2 Handling of unused pins ................................................................................................... 71

2.2 Timer ......................................................................................................................................... 72

2.2.1 Related registers .............................................................................................................. 72

2.2.2 Timer application examples .............................................................................................. 77

2.3 Serial I/O .................................................................................................................................. 86

2.3.1 Related registers .............................................................................................................. 86

2.3.2 Serial I/O connection examples ........................................................................................ 91

2.3.3 Setting of serial I/O mode ................................................................................................. 93

2.3.4 Serial I/O application examples ........................................................................................ 94

2.4 A-D conversion ..................................................................................................................... 105

2.4.1 Related registers ............................................................................................................ 105

2.4.2 A-D conversion application example .............................................................................. 107

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