M32C83T datasheet(12/527 Pages) RENESAS

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A-8

25.3 CPU Rewrite Mode ............................................................................................... 394

25.3.1 Flash Memory Control Register 0 (FMR0 Register) ................................... 395

25.3.2 Status Register .............................................................................................. 397

25.3.3 Data Protect Function ................................................................................... 398

25.3.4 How to Enter and Exit CPU Rewrite Mode .................................................. 399

25.3.5 Software Commands .................................................................................... 400

25.3.6 Full Status Check .......................................................................................... 406

25.3.7 Precautions in CPU Rewrite Mode .............................................................. 408

25.4 Standard Serial I/O Mode ..................................................................................... 409

25.4.1 Pin Function .................................................................................................. 409

25.4.2 ID Code Verify Function ............................................................................... 409

25.4.3 Precautions in Standard Serial I/O Mode .................................................... 414

25.4.4 Circuit Application in Standard Serial I/O Mode ........................................ 414

25.5 Parallel I/O Mode .................................................................................................. 415

25.5.1 Boot ROM Area.............................................................................................. 415

25.5.2 ROM Code Protect Function ........................................................................ 415

25.5.3 Precautions on Parallel I/O Mode ................................................................ 415

26. Electrical Characteristics ____________________ 416

26.1 Electrical Characteristics (M32C/83) .................................................................. 416

26.2 Electrical Characteristics (M32C/83T) ................................................................ 453

27. Precautions ________________________________ 462

27.1 Processor Mode ................................................................................................... 462

27.1.1 Microprocessor Mode ................................................................................... 462

27.2 Bus ........................................................................................................................ 463

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27.2.1 HOLD Signal .................................................................................................. 463

27.2.2 External Bus .................................................................................................. 463

27.3 SFR ........................................................................................................................ 464

27.3.1 100-Pin Package ............................................................................................ 464

27.3.2 Register Settings .......................................................................................... 464

27.4 Clock Generation Circuit ..................................................................................... 465

27.4.1 PLL Frequency Synthesizer ......................................................................... 465

27.4.2 Power Consumption Control ....................................................................... 465

27.4.3 Wait Mode ...................................................................................................... 466

27.4.4 Stop Mode ...................................................................................................... 466

27.5 Protection ............................................................................................................. 467

27.6 Interrupts .............................................................................................................. 468

27.6.1 ISP Setting ..................................................................................................... 468

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27.6.2 NMI Interrupt .................................................................................................. 468

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