R8C28 データシートの表示（PDF） - Renesas Electronics
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R8C28 Datasheet PDF : 471 Pages
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11. Protection .................................................................................................................................... 102
12. Interrupts ..................................................................................................................................... 103
12.1 Interrupt Overview ................................................................................................................................ 103
12.1.1 Types of Interrupts ............................................................................................................................ 103
12.1.2 Software Interrupts ........................................................................................................................... 104
12.1.3 Special Interrupts .............................................................................................................................. 105
12.1.4 Peripheral Function Interrupt ............................................................................................................ 105
12.1.5 Interrupts and Interrupt Vectors ........................................................................................................ 106
12.1.6 Interrupt Control ............................................................................................................................... 108
12.2 INT Interrupt ......................................................................................................................................... 117
12.2.1 INTi Interrupt (i = 0, 1, 3) ................................................................................................................. 117
12.2.2 INTi Input Filter (i = 0, 1, 3) ............................................................................................................. 119
12.3 Key Input Interrupt ................................................................................................................................ 120
12.4 Address Match Interrupt ........................................................................................................................ 122
12.5 Timer RC Interrupt, Clock Synchronous Serial I/O with Chip Select Interrupts, and I2C bus Interface
Interrupt (Interrupts with Multiple Interrupt Request Sources) ............................................................ 124
12.6 Notes on Interrupts ................................................................................................................................ 126
12.6.1 Reading Address 00000h .................................................................................................................. 126
12.6.2 SP Setting .......................................................................................................................................... 126
12.6.3 External Interrupt and Key Input Interrupt ....................................................................................... 126
12.6.4 Changing Interrupt Sources .............................................................................................................. 127
12.6.5 Changing Interrupt Control Register Contents ................................................................................. 128
13. Watchdog Timer .......................................................................................................................... 129
13.1 Count Source Protection Mode Disabled .............................................................................................. 132
13.2 Count Source Protection Mode Enabled ............................................................................................... 133
14. Timers ......................................................................................................................................... 134
14.1 Timer RA ............................................................................................................................................... 136
14.1.1 Timer Mode ...................................................................................................................................... 139
14.1.2 Pulse Output Mode ........................................................................................................................... 141
14.1.3 Event Counter Mode ......................................................................................................................... 143
14.1.4 Pulse Width Measurement Mode ...................................................................................................... 145
14.1.5 Pulse Period Measurement Mode ..................................................................................................... 148
14.1.6 Notes on TImer RA ........................................................................................................................... 151
14.2 Timer RB ............................................................................................................................................... 152
14.2.1 Timer Mode ...................................................................................................................................... 156
14.2.2 Programmable Waveform Generation Mode .................................................................................... 159
14.2.3 Programmable One-shot Generation Mode ...................................................................................... 162
14.2.4 Programmable Wait One-Shot Generation Mode ............................................................................. 166
14.2.5 Notes on Timer RB ........................................................................................................................... 169
14.3 Timer RC ............................................................................................................................................... 173
14.3.1 Overview ........................................................................................................................................... 173
14.3.2 Registers Associated with Timer RC ................................................................................................ 175
14.3.3 Common Items for Multiple Modes ................................................................................................. 185
14.3.4 Timer Mode (Input Capture Function) ............................................................................................. 191
14.3.5 Timer Mode (Output Compare Function) ......................................................................................... 196
14.3.6 PWM Mode ....................................................................................................................................... 202
A-3
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