Renesas 16-bit single-chip microcomputer, M16C/6NL, M16C/6NN manual - page 9

A-5
20.4 Standard Serial I/O Mode ......................................................................................................................256
20.4.1 ID Code Check Function................................................................................................................ 256
20.4.2 Example of Circuit Application in Standard Serial I/O Mode.......................................................... 260
20.5 Parallel I/O Mode ...................................................................................................................................261
20.5.1 User ROM and Boot ROM Areas................................................................................................... 261
20.5.2 ROM Code Protect Function.......................................................................................................... 261
20.6 CAN I/O Mode........................................................................................................................................ 262
20.6.1 ID Code Check Function................................................................................................................ 262
20.6.2 Example of Circuit Application in CAN I/O Mode........................................................................... 265
21. Electrical Characteristics................................................................................................. 266
22. Usage Precaution............................................................................................................ 276
22.1 SFR........................................................................................................................................................ 276
22.2 External Clock........................................................................................................................................ 277
22.3 PLL Frequency Synthesizer................................................................................................................... 278
22.4 Power Control ........................................................................................................................................279
22.5 Oscillation Stop, Re-oscillation Detection Function ...............................................................................281
22.6 Protection............................................................................................................................................... 282
22.7 Interrupt.................................................................................................................................................. 283
22.7.1 Reading Address 00000h...............................................................................................................283
22.7.2 Setting SP...................................................................................................................................... 283
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22.7.3 NMI Interrupt.................................................................................................................................. 283
22.7.4 Changing Interrupt Generate Factor.............................................................................................. 284
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22.7.5 INT Interrupt................................................................................................................................... 284
22.7.6 Rewrite Interrupt Control Register .................................................................................................285
22.7.7 Watchdog Timer Interrupt ..............................................................................................................285
22.8 DMAC ....................................................................................................................................................286
22.8.1 Write to DMAE Bit in DMiCON Register ........................................................................................286
22.9 Timers ....................................................................................................................................................287
22.9.1 Timer A...........................................................................................................................................287
22.9.2 Timer B...........................................................................................................................................291
22.10 Thee-Phase Motor Control Timer Function.......................................................................................... 293
22.11 Serial I/O ..............................................................................................................................................294
22.11.1 Clock Synchronous Serial I/O Mode............................................................................................ 294
22.11.2 Special Modes..............................................................................................................................295
22.11.3 SI/Oi............................................................................................................................................. 296
22.12 A/D Converter ...................................................................................................................................... 297
22.13 CAN Module......................................................................................................................................... 299
22.13.1 Reading C0STR Register ............................................................................................................299
22.13.2 Performing CAN Configuration ....................................................................................................301
22.13.3 Suggestions to Reduce Power Consumption ..............................................................................302
22.13.4 CAN Transceiver in Boot Mode....................................................................................................303
22.14 Programmable I/O Ports ......................................................................................................................304
22.15 Dedicated Input Pin.............................................................................................................................. 305
22.16 Electrical Characteristic Differences Between Mask ROM and Flash Memory Version Microcomputers ..... 306
22.17 Mask ROM Version............................................................................................................................. 307