M16C26A Datasheet, PDF (13/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

18. Electrical Characteristics _______________________ 261
18.1. M16C/26A, M16C/26B (Normal version) ................................................................ 261
18.2. M16C/26T (T version) ............................................................................................ 280
19. Usage Notes ________________________________ 299
19.1 SFR ......................................................................................................................... 299
19.1.1 Precaution for 48-pin package ......................................................................... 299
19.1.2 Precaution for 42-pin package ......................................................................... 299
19.1.3 Register Setting ............................................................................................... 299
19.2 PLL Frequency Synthesizer .................................................................................... 300
19.3 Power Control ......................................................................................................... 301
19.4 Protect ..................................................................................................................... 303
19.5 Interrupts ................................................................................................................. 304
19.5.1 Reading address 0000016 .................................................................................................... 304
19.5.2 Setting the SP .................................................................................................. 304
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19.5.3 The NMI Interrupt ............................................................................................. 304
19.5.4 Changing the Interrupt Generation Factor ....................................................... 304
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19.5.5 INT Interrupt ..................................................................................................... 305
19.5.6 Rewrite the Interrupt Control Register ............................................................. 306
19.5.7 Watchdog Timer Interrupt................................................................................. 306
19.6 DMAC ...................................................................................................................... 307
19.6.1 Write to DMAE Bit in DMiCON Register .......................................................... 307
19.7 Timer ....................................................................................................................... 308
19.7.1 Timer A ............................................................................................................. 308
19.7.2 Timer B ............................................................................................................. 311
19.7.3 Three-phase Motor Control Timer Function ..................................................... 312
19.8 Serial I/O ................................................................................................................. 313
19.8.1 Clock-Synchronous Serial I/O .......................................................................... 313
19.8.2 Serial I/O (UART Mode) ................................................................................... 314
19.9 A/D Converter .......................................................................................................... 315
19.10 Programmable I/O Ports ....................................................................................... 317
19.11 Electric Characteristic Differences Between Mask ROM
and Flash Memory Version Microcomputers .................. 318
19.12 Mask ROM Version ............................................................................................... 319
19.12.1 Internal ROM area ......................................................................................... 319
19.12.2 Reserve bit ..................................................................................................... 319
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