R8C25 Datasheet, PDF (12/525 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/2x SERIES

17.4.4 Hardware LIN End Processing ......................................................................................................... 380
17.5 Interrupt Requests .................................................................................................................................. 381
17.6 Notes on Hardware LIN ........................................................................................................................ 382
18. A/D Converter ............................................................................................................................. 383
18.1 One-Shot Mode ..................................................................................................................................... 387
18.2 Repeat Mode .......................................................................................................................................... 390
18.3 Sample and Hold ................................................................................................................................... 393
18.4 A/D Conversion Cycles ......................................................................................................................... 393
18.5 Internal Equivalent Circuit of Analog Input .......................................................................................... 394
18.6 Output Impedance of Sensor under A/D Conversion ............................................................................ 395
18.7 Notes on A/D Converter ........................................................................................................................ 396
19. Flash Memory ............................................................................................................................. 397
19.1 Overview ............................................................................................................................................... 397
19.2 Memory Map ......................................................................................................................................... 398
19.3 Functions to Prevent Rewriting of Flash Memory ................................................................................ 400
19.3.1 ID Code Check Function .................................................................................................................. 400
19.3.2 ROM Code Protect Function ............................................................................................................ 401
19.4 CPU Rewrite Mode ............................................................................................................................... 402
19.4.1 EW0 Mode ........................................................................................................................................ 403
19.4.2 EW1 Mode ........................................................................................................................................ 403
19.4.3 Software Commands ......................................................................................................................... 412
19.4.4 Status Registers ................................................................................................................................. 417
19.4.5 Full Status Check .............................................................................................................................. 418
19.5 Standard Serial I/O Mode ...................................................................................................................... 420
19.5.1 ID Code Check Function .................................................................................................................. 420
19.6 Parallel I/O Mode .................................................................................................................................. 424
19.6.1 ROM Code Protect Function ............................................................................................................ 424
19.7 Notes on Flash Memory ........................................................................................................................ 425
19.7.1 CPU Rewrite Mode ........................................................................................................................... 425
20. Electrical Characteristics ............................................................................................................ 428
21. Usage Notes ............................................................................................................................... 454
21.1 Notes on Clock Generation Circuit ....................................................................................................... 454
21.1.1 Stop Mode ......................................................................................................................................... 454
21.1.2 Wait Mode ........................................................................................................................................ 454
21.1.3 Oscillation Stop Detection Function ................................................................................................. 454
21.1.4 Oscillation Circuit Constants ............................................................................................................ 454
21.2 Notes on Interrupts ................................................................................................................................ 455
21.2.1 Reading Address 00000h .................................................................................................................. 455
21.2.2 SP Setting .......................................................................................................................................... 455
21.2.3 External Interrupt and Key Input Interrupt ....................................................................................... 455
21.2.4 Changing Interrupt Sources .............................................................................................................. 456
21.2.5 Changing Interrupt Control Register Contents ................................................................................. 457
21.3 Notes on Timers .................................................................................................................................... 458
21.3.1 Notes on Timer RA ........................................................................................................................... 458
21.3.2 Notes on Timer RB ........................................................................................................................... 459
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