M32C8A Datasheet, PDF (12/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

19. D/A Converter ............................................................................................................................. 272
20. CRC Calculation ......................................................................................................................... 274
21. X/Y Conversion ........................................................................................................................... 276
22. Programmable I/O Ports ............................................................................................................. 279
22.1 Port Pi Direction Register (PDi Register, i = 0 to 15) ........................................................................... 279
22.2 Port Pi Register (Pi Register, i = 0 to 15) .............................................................................................. 279
22.3 Function Select Register A (PSj Register, j = 0 to 3) ............................................................................ 279
22.4 Function Select Register B (PSLk Register, k = 0 to 3) ........................................................................ 279
22.5 Function Select Register C (PSC Register) ........................................................................................... 279
22.6 Pull-up Control Register 0 to 4 (PUR0 to PUR4 Registers) ................................................................. 280
22.7 Port Control Register (PCR Register) ................................................................................................... 280
22.8 Analog Input and Other Peripheral Function Input ............................................................................... 280
23. Electrical Characteristics ............................................................................................................. 299
24. Usage Notes .............................................................................................................................. 331
24.1 Power Supply ........................................................................................................................................ 331
24.1.1 Power-on ........................................................................................................................................... 331
24.1.2 Power Supply Ripple ........................................................................................................................ 332
24.1.3 Noise ................................................................................................................................................. 332
24.2 Special Function Registers (SFRs) ........................................................................................................ 333
24.2.1 100 Pin-Package ............................................................................................................................... 333
24.2.2 Register Settings ............................................................................................................................... 333
24.3 Clock Generation Circuits ..................................................................................................................... 334
24.3.1 Main Clock ....................................................................................................................................... 334
24.3.2 Sub Clock ......................................................................................................................................... 334
24.3.3 Clock Dividing Ratio ........................................................................................................................ 334
24.3.4 Power Consumption Control ............................................................................................................ 334
24.4 Protection .............................................................................................................................................. 337
24.5 Interrupts ............................................................................................................................................... 338
24.5.1 ISP Setting ........................................................................................................................................ 338
24.5.2 NMI Interrupt ................................................................................................................................... 338
24.5.3 INT Interrupt ..................................................................................................................................... 338
24.5.4 Changing Interrupt Control Register ................................................................................................ 340
24.5.5 Changing RLVL Register ................................................................................................................. 340
24.6 DMAC ................................................................................................................................................... 341
24.7 Timers ................................................................................................................................................... 342
24.7.1 Timer A, Timer B ............................................................................................................................. 342
24.7.2 Timer A ............................................................................................................................................. 342
24.7.3 Timer B ............................................................................................................................................. 344
24.8 Three-Phase Motor Control Timer Function ......................................................................................... 345
24.9 Serial Interfaces ..................................................................................................................................... 346
24.9.1 Changing UiBRG Register (i = 0 to 4) ............................................................................................. 346
24.9.2 Clock Synchronous Mode ................................................................................................................ 346
24.9.3 UART Mode ..................................................................................................................................... 346
24.9.4 Special Mode 1 (I2C Mode) ............................................................................................................. 346
24.10 A/D Converter ....................................................................................................................................... 347
A-5