R8C2K datasheet(13/471 Pages) RENESAS

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23.2

Notes on Interrupts ................................................................................................................................ 424

23.2.1

Reading Address 00000h .................................................................................................................. 424

23.2.2

SP Setting .......................................................................................................................................... 424

23.2.3

External Interrupt and Key Input Interrupt ....................................................................................... 424

23.2.4

Changing Interrupt Sources .............................................................................................................. 425

23.2.5

Changing Interrupt Control Register Contents ................................................................................. 426

23.3

Notes on Timers .................................................................................................................................... 427

23.3.1

Notes on Timer RA ........................................................................................................................... 427

23.3.2

Notes on Timer RB ........................................................................................................................... 428

23.3.3

Notes on Timer RC ........................................................................................................................... 432

23.3.4

Notes on Timer RD ........................................................................................................................... 433

23.4

Notes on Serial Interface ....................................................................................................................... 439

23.5

Notes on Hardware LIN ........................................................................................................................ 440

23.6

Notes on A/D Converter ........................................................................................................................ 441

23.7

Notes on Flash Memory ........................................................................................................................ 442

23.7.1

CPU Rewrite Mode ........................................................................................................................... 442

23.8

Notes on Noise ...................................................................................................................................... 444

23.8.1

Inserting a Bypass Capacitor between VCC and VSS Pins as a Countermeasure against Noise and

Latch-up ........................................................................................................................................... 444

23.8.2

Countermeasures against Noise Error of Port Control Registers ..................................................... 444

24.

Notes for On-Chip Debugger ...................................................................................................... 445

Appendix 1. Package Dimensions ........................................................................................................ 446

Appendix 2. Connection Examples between Serial Writer and On-Chip Debugging Emulator ............ 447

Appendix 3. Example of Oscillation Evaluation Circuit ......................................................................... 448

Index ..................................................................................................................................................... 449

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