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R5F21257SDXXXFP Datasheet(PDF) 10 Page - Renesas Technology Corp |
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R5F21257SDXXXFP Datasheet(HTML) 10 Page - Renesas Technology Corp |
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10 / 525 page  A - 3 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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