R5F21246SDFP View Datasheet(PDF) - Renesas Electronics
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R5F21246SDFP Datasheet PDF : 525 Pages
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11. Protection .................................................................................................................................... 100
12. Interrupts ..................................................................................................................................... 101
12.1 Interrupt Overview ................................................................................................................................ 101
12.1.1 Types of Interrupts ............................................................................................................................ 101
12.1.2 Software Interrupts ........................................................................................................................... 102
12.1.3 Special Interrupts .............................................................................................................................. 103
12.1.4 Peripheral Function Interrupt ............................................................................................................ 103
12.1.5 Interrupts and Interrupt Vectors ........................................................................................................ 104
12.1.6 Interrupt Control ............................................................................................................................... 106
12.2 INT Interrupt ......................................................................................................................................... 115
12.2.1 INTi Interrupt (i = 0 to 3) .................................................................................................................. 115
12.2.2 INTi Input Filter (i = 0 to 3) .............................................................................................................. 117
12.3 Key Input Interrupt ................................................................................................................................ 118
12.4 Address Match Interrupt ........................................................................................................................ 120
12.5 Timer RD Interrupt, Clock Synchronous Serial I/O with Chip Select Interrupts, and I2C bus Interface
Interrupt (Interrupts with Multiple Interrupt Request Sources) ............................................................ 122
12.6 Notes on Interrupts ................................................................................................................................ 124
12.6.1 Reading Address 00000h .................................................................................................................. 124
12.6.2 SP Setting .......................................................................................................................................... 124
12.6.3 External Interrupt and Key Input Interrupt ....................................................................................... 124
12.6.4 Changing Interrupt Sources .............................................................................................................. 125
12.6.5 Changing Interrupt Control Register Contents ................................................................................. 126
13. Watchdog Timer .......................................................................................................................... 127
13.1 Count Source Protection Mode Disabled .............................................................................................. 130
13.2 Count Source Protection Mode Enabled ............................................................................................... 131
14. Timers ......................................................................................................................................... 132
14.1 Timer RA ............................................................................................................................................... 134
14.1.1 Timer Mode ...................................................................................................................................... 137
14.1.2 Pulse Output Mode ........................................................................................................................... 139
14.1.3 Event Counter Mode ......................................................................................................................... 141
14.1.4 Pulse Width Measurement Mode ...................................................................................................... 143
14.1.5 Pulse Period Measurement Mode ..................................................................................................... 146
14.1.6 Notes on Timer RA ........................................................................................................................... 149
14.2 Timer RB ............................................................................................................................................... 150
14.2.1 Timer Mode ...................................................................................................................................... 154
14.2.2 Programmable Waveform Generation Mode .................................................................................... 157
14.2.3 Programmable One-shot Generation Mode ...................................................................................... 159
14.2.4 Programmable Wait One-Shot Generation Mode ............................................................................. 163
14.2.5 Notes on Timer RB ........................................................................................................................... 167
14.3 Timer RD ............................................................................................................................................... 171
14.3.1 Count Sources ................................................................................................................................... 176
14.3.2 Buffer Operation ............................................................................................................................... 177
14.3.3 Synchronous Operation ..................................................................................................................... 179
14.3.4 Pulse Output Forced Cutoff .............................................................................................................. 180
14.3.5 Input Capture Function ..................................................................................................................... 182
14.3.6 Output Compare Function ................................................................................................................ 196
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