R8C-22_1 Datasheet, PDF (12/549 Pages) Renesas Technology Corp – MCU R8C FAMILY / R8C/2x SERIES

18.3 Acceptance Mask Registers ................................................................................................................... 374
18.4 CAN SFR Registers ............................................................................................................................... 375
18.4.1 C0MCTLi Register (i = 0 to 15) ....................................................................................................... 375
18.4.2 C0CTLR Register ............................................................................................................................. 376
18.4.3 C0STR Register ................................................................................................................................ 377
18.4.4 C0SSTR Register .............................................................................................................................. 378
18.4.5 C0ICR Register ................................................................................................................................. 379
18.4.6 C0IDR Register ................................................................................................................................. 379
18.4.7 C0CONR Register ............................................................................................................................ 380
18.4.8 C0RECR Register ............................................................................................................................. 381
18.4.9 C0TECR Register ............................................................................................................................. 381
18.4.10 C0AFS Register ................................................................................................................................ 382
18.5 Operational Modes ................................................................................................................................ 383
18.5.1 CAN Reset/Initialization Mode ........................................................................................................ 383
18.5.2 CAN Operation Mode ....................................................................................................................... 384
18.5.3 CAN Sleep Mode .............................................................................................................................. 384
18.5.4 CAN Interface Sleep Mode ............................................................................................................... 384
18.5.5 Bus-Off State .................................................................................................................................... 385
18.6 Configuration of the CAN Module System Clock ................................................................................ 386
18.6.1 Bit Timing Configuration ................................................................................................................. 386
18.6.2 Baud Rate .......................................................................................................................................... 387
18.7 Acceptance Filtering Function and Masking Function ......................................................................... 388
18.8 Acceptance Filter Support Unit (ASU) ................................................................................................. 389
18.9 Basic CAN Mode .................................................................................................................................. 390
18.10 Return from Bus off Function ............................................................................................................... 390
18.11 Listen-Only Mode ................................................................................................................................. 390
18.12 Reception and Transmission ................................................................................................................. 391
18.12.1 Reception .......................................................................................................................................... 392
18.12.2 Transmission ..................................................................................................................................... 393
18.13 CAN Interrupts ...................................................................................................................................... 394
18.14 Notes on CAN Module .......................................................................................................................... 395
18.14.1 Reading C0STR Register .................................................................................................................. 395
18.14.2 Performing CAN Configuration ....................................................................................................... 397
18.14.3 Suggestions to Reduce Power Consumption .................................................................................... 398
19. A/D Converter ............................................................................................................................. 399
19.1 One-Shot Mode ..................................................................................................................................... 403
19.2 Repeat Mode .......................................................................................................................................... 406
19.3 Sample and Hold ................................................................................................................................... 409
19.4 A/D Conversion Cycles ......................................................................................................................... 410
19.5 Internal Equivalent Circuit of Analog Input .......................................................................................... 411
19.6 Output Impedance of Sensor Under A/D Conversion ........................................................................... 412
19.7 Notes on A/D Converter ........................................................................................................................ 413
20. Flash Memory ............................................................................................................................. 414
20.1 Overview ............................................................................................................................................... 414
20.2 Memory Map ......................................................................................................................................... 416
20.3 Functions to Prevent Rewriting of Flash Memory ................................................................................ 419
20.3.1 ID Code Check Function .................................................................................................................. 419
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