Nuvoton TRM KM1M7BF00 02 Vol1 Technical Reference Manual

KM1M7BF00/02 Series

ARM® Cortex®-M

32-bit Microcontroller

KM1M7BF00/02 Series

Technical Reference Manual Vol. 1

The information described in this document is the exclusive intellectual property of Nuvoton

Technology Corporation Japan and shall not be reproduced without permission from Nuvoton.

Nuvoton is providing document only for reference purposes of KM1M7BF00/02 Series based

system design.

Nuvoton assumes no responsibility for errors or commissions.

All data and specifications are subject to changed without notice.

For additional information or question, please contact Nuvoton Technology Corporation Japan.

www.nuvoton.co.jp

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Request for your special attention and precautions

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(1) If any of the products or technical information described in this book is to be exported or provided to non-

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responsibility is assumed by our company as to the infringement upon any such right owned by any other

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Table of Contents

1. Overview .............................................................................................. 17

1.1 Overview .................................................................................................................................18

1.2 Product Summary....................................................................................................................18

1.2.1 Function Summary ........................................................................................................19

1.3 Features ..................................................................................................................................21

1.4 Pins .........................................................................................................................................24

1.4.1 Pin Configuration...........................................................................................................24

1.4.2 Pin Functions ................................................................................................................26

1.5 Electrical Characteristics .........................................................................................................38

1.5.1 Absolute Maximum Ratings ..........................................................................................38

1.5.2 Operation Conditions ....................................................................................................39

1.5.3 DC Characteristics ........................................................................................................42

1.5.4 Analog Characteristics ..................................................................................................47

1.5.5 AC Characteristics ........................................................................................................53

1.5.6 Flash EEPROM Characteristics ....................................................................................53

1.6 Package Dimension ................................................................................................................54

1.7 Cautions for Circuit Setup .......................................................................................................56

1.7.1 Cautions of Usage.........................................................................................................56

1.7.2 Pin Connections ............................................................................................................57

1.7.3 Unused pins ..................................................................................................................60

1.7.4 Cautions of Power Supply.............................................................................................61

1.7.5 Example of Oscillator Connection .................................................................................64

2. Safety Function.................................................................................... 67

2.1 Overview .................................................................................................................................68

2.1.1 Flash Memory Data Protection Function.......................................................................68

2.1.2 Flash-ECC Function......................................................................................................68

2.1.3 RAM-ECC function........................................................................................................69

2.1.4 MPU Function ...............................................................................................................69

2.1.5 Register Protection Function.........................................................................................69

2.1.6 WDT Function ...............................................................................................................70

2.1.7 Clock Monitoring Function.............................................................................................70

2.1.8 CRC Caluculation Function...........................................................................................70

2.1.9 A/D Fault Diagnosis Function........................................................................................71

2.1.10 Power Supply Voltage Detection Function ..................................................................71

2.1.11 Reset Factor Identifying Function................................................................................71

2.1.12 IO-level Monitoring Function .......................................................................................71

3. System Settings ................................................................................. 73

3.1 Reset .......................................................................................................................................74

3.1.1 Overview .......................................................................................................................74

3.1.2 Reset Controller Control Register .................................................................................74

3.1.3 Reset Definition.............................................................................................................74

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3.1.4 Identifying Reset Factor ................................................................................................76

3.1.5 Start-Up Sequence after Reset .....................................................................................77

3.2 Flash Option ............................................................................................................................80

3.2.1 Overview of Flash Option..............................................................................................80

3.2.2 Detail of Flash Option....................................................................................................82

3.3 Software Start-UP ...................................................................................................................89

3.3.1 Overview of Software Start-Up......................................................................................89

3.3.2 Examples of Settings ....................................................................................................89

3.4 Clock Generator ......................................................................................................................90

3.4.1 Overview of Clock Generator ........................................................................................90

3.4.2 Clock Generator Control Register .................................................................................92

3.4.3 Specification of Clock Generator...................................................................................92

3.4.4 Setting Example of Clock Generator.............................................................................97

4. CPU....................................................................................................... 99

4.1 Overview ...............................................................................................................................100

4.1.1 Cortex-M7 Processor and Core Peripheral Structure ................................................101

4.1.2 The list of Cortex-M7 Processor and Core Peripheral Interrupts ................................102

4.1.3 Block Diagram of Cortex-M7 Processor and Core Peripheral Blocks .........................102

4.2 Cortex-M7 Processor and Core Peripheral Control Register ...............................................103

4.3 Cortex-M7 Processor and Core Peripheral Controls.............................................................103

4.3.1 Enabling writing to the register on the Private Peripheral Bus ....................................103

5. Memory Map ...................................................................................... 105

5.1 Overview ...............................................................................................................................106

5.2 Memory map .........................................................................................................................107

5.3 Flash Memory Area ...............................................................................................................109

5.3.1 Access Wait Setting to Flash area ..............................................................................109

5.3.2 Flash-ECC Functions ..................................................................................................109

5.4 ITCM......................................................................................................................................113

5.4.1 ITCM Access Wait Setting...........................................................................................113

5.4.2 RAM-ECC Function (ITCM) ........................................................................................114

5.5 DTCM (D0TCM/D1TCM).......................................................................................................120

5.5.1 DTCM Access Wait Setting .........................................................................................120

5.5.2 RAM-ECC Function (D0TCM/D1TCM) .......................................................................121

5.6 Peripheral Area .....................................................................................................................126

5.6.1 Register Map...............................................................................................................126

6. Low Power Mode ............................................................................... 135

6.1 Overview of Low Power Mode...............................................................................................136

6.1.1 Operation Modes.........................................................................................................136

6.1.2 Operation Mode Transition Diagram ...........................................................................137

6.2 Low Power Mode Control Register........................................................................................138

6.3 Detail of Low Power Mode ....................................................................................................139

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6.3.1 Specification of Operation Mode .................................................................................139

6.3.2 Operating State of Functional Block............................................................................140

6.3.3 Entering and Exiting DEEPSLEEP Mode....................................................................141

6.3.4 Entering and Exiting SLEEP Mode .............................................................................143

6.3.5 Setting Example of Transition of Operation Mode.......................................................145

7. Interrupt Controller............................................................................ 147

7.1 Overview of the Interrupt Controller ......................................................................................148

7.2 Features of the Interrupt Controller .......................................................................................148

7.3 Block Diagram of the Interrupt Controller ..............................................................................148

7.4 The List of the Interrupt Factors ............................................................................................149

7.5 Control Registers of the Interrupt Controller..........................................................................159

7.6 Group Interrupt Function .......................................................................................................160

7.6.1 Overview .....................................................................................................................160

7.6.2 Function Descriptions..................................................................................................161

7.6.3 Example of Interrupt Settings......................................................................................162

7.7 Pin Protection Factor Detection Function..............................................................................167

8. DMA Controller .................................................................................. 169

8.1 Overview ...............................................................................................................................170

8.1.1 Functions of DMA controller........................................................................................170

8.1.2 Interrupt group list of DMA controller ..........................................................................171

8.1.3 DMA transfer factor list................................................................................................174

8.1.4 Block diagram of DMA controller.................................................................................178

8.2 Control Registers of DMA controller......................................................................................179

8.3 DMA controller operation.......................................................................................................185

8.3.1 DMA transfer target.....................................................................................................185

8.3.2 DMA transfer operation ...............................................................................................186

8.3.3 Addressing mode ........................................................................................................192

8.3.4 Priority level.................................................................................................................192

8.3.5 DMA transfer operation in DEEPSLEEP.....................................................................192

8.4 Setting example of DMA transfer ..........................................................................................193

9. I/O Port................................................................................................ 195

9.1 Overview of I/O Ports ............................................................................................................196

9.1.1 The List of I/O Ports ....................................................................................................199

9.1.2 The Default States of the I/O Ports .............................................................................203

9.1.3 The Circuit Diagram of the I/O Ports ...........................................................................207

9.2 I/O Port Control Registers .....................................................................................................208

10. Noise Filter....................................................................................... 213

10.1 Overview of Noise Filter ......................................................................................................214

10.1.1 List of Noise Filter Function.......................................................................................214

10.1.2 Noise Filter Block Diagram........................................................................................214

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10.2 Control Registers of Noise Filter .........................................................................................216

10.3 Function of Noise Filter .......................................................................................................217

10.3.1 Specification of Noise Filter.......................................................................................217

10.3.2 Setting Example of Noise Filter.................................................................................218

11. 16-bit Timer ...................................................................................... 219

11.1 Overview of 16-bit Timer......................................................................................................220

11.1.1 List of 16-bit Timer.....................................................................................................220

11.1.2 List of 16-bit Timer Clock Sources.............................................................................221

11.1.3 List of 16-bit Timer Interrupt Groups..........................................................................222

11.1.4 List of 16-bit Timer Ports ...........................................................................................225

11.1.5 16-bit Timer Block Structure ......................................................................................231

11.2 16-bit Timer Control Register...............................................................................................234

11.3 Interval Timer.......................................................................................................................255

11.3.1 Function of Interval Timer..........................................................................................255

11.3.2 Timing of Interval Timer Operation ............................................................................256

11.3.3 Example of Interval Timer Settings............................................................................258

11.4 Timer Output........................................................................................................................260

11.4.1 Function of Timer Output...........................................................................................260

11.4.2 Timing of Timer Output Operation .............................................................................261

11.4.3 Example of Timer Output Settings.............................................................................262

11.5 PWM Output ........................................................................................................................264

11.5.1 Function of PWM Output ...........................................................................................264

11.5.2 Timing of PWM Output Operation .............................................................................265

11.5.3 Example of PWM Output Settings.............................................................................266

11.6 Event Count.........................................................................................................................268

11.6.1 Function of Event Count............................................................................................268

11.6.2 Timing of Event Count Operation ..............................................................................269

11.6.3 Example of Event Count Settings..............................................................................271

11.7 Phase Difference Pulse Count ............................................................................................273

11.7.1 Function of Phase Difference Pulse Count................................................................273

11.7.2 Timing of Phase Difference Pulse Count Operat.......................................................274

11.7.3 Example of Phase Difference Pulse Count Settings .................................................276

11.8 Up/Down Pulse Count .........................................................................................................278

11.8.1 Function of Up/Down Pulse Count ............................................................................278

11.8.2 Timing of Up/Down Pulse Count Operation...............................................................279

11.8.3 Example of Up/Down Pulse Count Settings ..............................................................280

11.9 Input Capture.......................................................................................................................282

11.9.1 Function of Input Capture..........................................................................................282

11.9.2 Timing of Input Capture Operation ............................................................................283

11.9.3 Example of Input Capture Operation Settings...........................................................284

11.10 1-Shot Output ....................................................................................................................286

11.10.1 Function of 1-Shot Output .......................................................................................286

11.10.2 Timing of 1-Shot Output Operation..........................................................................287

11.10.3 Example of 1-Shot Output Operation ......................................................................288

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11.11 External Trigger .................................................................................................................290

11.11.1 Function of External Trigger ....................................................................................290

11.11.2 Timing of External Trigger Operation.......................................................................291

11.11.3 Example of External Trigger Settings ......................................................................292

11.12 Output Protection...............................................................................................................294

11.12.1 Function of Output Protection..................................................................................294

11.12.2 Timing of Output Protection Operation ....................................................................296

11.12.3 Example of Output Protection Settings ...................................................................298

11.13 Timer Interrupt Output Control...........................................................................................300

11.13.1 Function of Timer Interrupt Output Control..............................................................300

11.13.2 Timing of Timer Interrupt Output Control Operation ................................................301

11.13.3 Example of Timer Interrupt Output Control..............................................................302

11.14 A/D Converter Start ...........................................................................................................304

11.14.1 Function of A/D Converter Start ..............................................................................304

11.14.2 Timing of A/D Conversion Start Operation ..............................................................305

11.14.3 Example of A/D Converter Setting ..........................................................................306

11.15 Cascade Connection .........................................................................................................308

11.15.1 List of Cascade Connection Timer Functions..........................................................309

11.15.2 Function of Cascade Connection Timer ..................................................................311

11.15.3 Timing of Cascade Connection Timer Operation.....................................................313

11.15.4 Timing of Cascade Connection Interval Timer Operation........................................314

11.15.5 Example of Cascade Connection Timer Setting......................................................315

11.16 Phase Complementary PWM Output ................................................................................317

11.16.1 Function of Phase Complementary PWM Output ...................................................317

11.16.2 Timing of Phase Complementary PWM Output Operation......................................318

11.16.3 Example of Phase Complementary PWM Output Setting .......................................319

11.17 Dead Time .........................................................................................................................321

11.17.1 Function of Dead Time ............................................................................................321

11.17.2 Timing of Dead Time Operation...............................................................................322

11.17.3 Function of Dead Time Width Automatic Control ....................................................323

11.17.4 Timing of Dead Time Width Automatic Control Operation.......................................323

11.17.5 Example of Dead Time Setting................................................................................325

11.18 Output Shift........................................................................................................................328

11.18.1 Function of Output Shift...........................................................................................328

11.18.2 Timing of Output Shift Operation .............................................................................329

11.18.3 Example of Output Shift Setting ..............................................................................330

11.19 Duty Cut.............................................................................................................................332

11.19.1 Function of Duty Cut................................................................................................332

11.19.2 Timing of Duty Cut Operation ..................................................................................333

11.19.3 Example of Duty Cut Setting ...................................................................................334

11.20 Period cut ..........................................................................................................................336

11.20.1 Function of Period Cut.............................................................................................336

11.20.2 Timing of Period Cut Operation ...............................................................................337

11.20.3 Example of Period Cut Setting ................................................................................339

11.21 Leading Edge Blanking......................................................................................................341

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11.21.1 Function of Leading Edge Blanking.........................................................................341

11.21.2 Timing of Leading Edge Blanking Operation ...........................................................342

11.21.3 Example of Leading Edge Blanking Setting ............................................................343

11.22 Task Overflow Detection....................................................................................................345

11.22.1 Function of Task Overflow Detection.......................................................................345

11.22.2 Timing of Task Overflow Detection Operation .........................................................346

11.22.3 Example of Task Overflow Detection Setting ..........................................................347

12. Power Control PWM ........................................................................ 349

12.1 Overview of Power Control PWM........................................................................................350

12.1.1 List of Power Control PWM Functions ......................................................................351

12.1.2 List of Power Control PWM Clock Sources...............................................................352

12.1.3 List of Power Control PWM Interrupt Groups............................................................352

12.1.4 List of Power Control PWM Ports..............................................................................353

12.1.5 Power Control PWM Block Diagram .........................................................................355

12.2 Control Registers for the Power Control PWM....................................................................356

12.3 Basic Operation of the Power Control PWM .......................................................................368

12.3.1 Waveform Mode ........................................................................................................368

12.3.2 GPWM Cycle Setting ................................................................................................370

12.3.3 GPWM Output Start and Stop...................................................................................370

12.3.4 Output Waveform Polarity .........................................................................................372

12.3.5 Double Buffer ............................................................................................................373

12.3.6 Double Buffer Load Timing........................................................................................374

12.4 Dead Time Setting Function ................................................................................................376

12.4.1 Details of the Dead Time Setting Function................................................................376

12.4.2 Dead Time Period Auto Control Function..................................................................378

12.5 "H"/"L" Level Output Function .............................................................................................379

12.5.1 Setting "H"/"L" Level Output Function .......................................................................379

12.5.2 Inserting Dead Time when Outputting "H"/"L" Levels................................................381

12.6 Output Shift Function...........................................................................................................382

12.6.1 Details of Output Shift Function ................................................................................382

12.7 Interrupt Output Control Function........................................................................................383

12.7.1 Details of Interrupt Output Control Function..............................................................383

12.8 Output Protection Function..................................................................................................385

12.8.1 Details of the Output Protection Function .................................................................385

12.9 Synchronous A/D Conversion Start Function......................................................................387

12.9.1 Details of Synchronous A/D Conversion Start Function............................................387

12.10 Count State Output Function.............................................................................................389

12.10.1 Details of Count State Output Function...................................................................389

12.11 Pin Output Order Selection................................................................................................390

12.11.1 Details of Pin Output Order Selection .....................................................................390

12.12 Duty Cut Function..............................................................................................................391

12.12.1 Details of Duty Cut Function ...................................................................................391

12.12.2 The Operation Timing of Duty Cut Function............................................................392

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12.13 Period Cut Function...........................................................................................................393

12.13.1 Details of Period Cut Function ................................................................................393

12.13.2 The Operation Timing of Period Cut Function.........................................................394

13. Serial Interface 0.............................................................................. 395

13.1 Overview of Serial Interface ................................................................................................396

13.1.1 List of Serial Interface Functions...............................................................................397

13.1.2 List of Serial Interface Clocks....................................................................................398

13.1.3 List of Serial Interface Interrupt Groups ....................................................................399

13.1.4 List of Serial Interface Ports ......................................................................................399

13.1.5 Serial Interface Block Diagram..................................................................................400

13.2 Serial Interface Control Registers .......................................................................................401

13.3 Clock Specification ..............................................................................................................402

13.3.1 Clock Source.............................................................................................................403

13.3.2 Transfer Clock ...........................................................................................................405

13.4 Clock-Synchronous Serial Interface ....................................................................................406

13.4.1 Communication Function of Clock-Synchronous ......................................................406

13.4.2 Clock-Synchronous Communication Timing .............................................................418

13.4.3 Clock-Synchronous Setup Example..........................................................................423

13.5 IIC Communication .............................................................................................................429

13.5.1 Communication Function of IIC.................................................................................429

13.5.2 IIC Communication Timing ........................................................................................439

13.5.3 IIC Communication Setup Example ..........................................................................442

14. Serial Interface 1,2,5,6..................................................................... 447

14.1 Overview of Serial Interface ................................................................................................448

14.1.1 List of Serial Interface Functions...............................................................................449

14.1.2 List of Serial Interface Clocks....................................................................................451

14.1.3 List of Serial Interface Interrupt Groups ....................................................................452

14.1.4 List of Serial Interface Ports ......................................................................................453

14.1.5 Serial Interface Block Diagram..................................................................................454

14.2 Serial Interface Control Registers .......................................................................................455

14.3 Clock Specification ..............................................................................................................457

14.3.1 Clock Source.............................................................................................................458

14.3.2 Transfer Clock ...........................................................................................................460

14.4 Clock-Synchronous Serial Interface ....................................................................................461

14.4.1 Communication Function of Clock-Synchronous ......................................................461

14.4.2 Clock-Synchronous Communication Timing .............................................................474

14.4.3 Clock-Synchronous Setup Example..........................................................................479

14.5 UART Serial Interface .........................................................................................................486

14.5.1 Communication Function of UART............................................................................486

14.5.2 UART Communication Timing...................................................................................495

14.5.3 UART Setup Example ...............................................................................................497

15. Serial Interface 3,4........................................................................... 501

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15.1 Overview of Serial Interface ................................................................................................502

15.1.1 List of Serial Interface Functions...............................................................................503

15.1.2 List of Serial Interface Clocks....................................................................................504

15.1.3 List of Serial Interface Interrupt Groups ....................................................................505

15.1.4 List of Serial Interface Ports ......................................................................................506

15.1.5 Serial Interface Block Diagram..................................................................................507

15.2 Serial Interface Control Registers .......................................................................................508

15.3 Clock Specification ..............................................................................................................509

15.3.1 Clock Source.............................................................................................................510

15.3.2 Transfer Clock ...........................................................................................................512

15.4 Clock-Synchronous Serial Interface ....................................................................................513

15.4.1 Communication Function of Clock-Synchronous ......................................................513

15.4.2 Clock-Synchronous Communication Timing .............................................................528

15.4.3 Clock-Synchronous Setup Example..........................................................................533

15.5 UART Serial Interface .........................................................................................................540

15.5.1 Communication Function of UART............................................................................540

15.5.2 UART Communication Timing...................................................................................548

15.5.3 UART Setup Example ...............................................................................................550

16. Serial Interface 7.............................................................................. 555

16.1 Overview of Serial Interface 7 .............................................................................................556

16.1.1 List of Serial Interface 7 Functions............................................................................556

16.1.2 List of Serial Interface 7 Interrupt Groups .................................................................558

16.1.3 List of Serial Interface 7 Ports ...................................................................................558

16.2 Serial Interface 7 Control Registers ....................................................................................559

16.3 Clock Specification ..............................................................................................................562

16.3.1 Clock Source.............................................................................................................564

16.3.2 Transfer Clock of Clock-Synchronous Communication.............................................565

16.3.3 Transfer Clock of UART ............................................................................................566

16.3.4 Transfer Clock of IIC .................................................................................................566

16.4 Clock-Synchronous Communication ...................................................................................569

16.4.1 Communication Function of Clock-Synchronous ......................................................569

16.4.2 Communication Timing of Clock-Synchronous ........................................................583

16.4.3 Example of Clock-Synchronous Communication Setting..........................................588

16.5 UART Communication.........................................................................................................595

16.5.1 Communication Functions of UART..........................................................................595

16.5.2 Communication Timing of UART ..............................................................................602

16.5.3 Example of UART Communication Setting ..............................................................604

16.6 IIC Communication..............................................................................................................609

16.6.1 Communication Function of IIC.................................................................................609

16.6.2 IIC Communication Flowchart ...................................................................................621

16.6.3 Example of IIC Communication Setting ...................................................................632

16.6.4 Access Timing of IIC .................................................................................................659

17. SMBus Interface .............................................................................. 661

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17.1 Overview of SMBus Interface..............................................................................................662

17.1.1 List of SMBus Interface Functions ............................................................................662

17.1.2 List of SMBus Interface Clocks .................................................................................663

17.1.3 List of SMBus Interface Interrupt Groups..................................................................663

17.1.4 List of SMBus Interface Ports....................................................................................663

17.1.5 SMBus Interface Block Diagram ...............................................................................664

17.2 SMBus Interface Control Registers .....................................................................................665

17.3 Clock Specification ..............................................................................................................666

17.4 SMBus Communication.......................................................................................................667

17.4.1 Communication Function of SMBus..........................................................................667

17.4.2 Setting Example of SMBus (At Slave Communication).............................................675

17.4.3 Setting Example of SMBus (At Master Communication)...........................................683

18. LIN Controller................................................................................... 689

18.1 Overview of LIN Controller ..................................................................................................690

18.1.1 List of LIN Controller Functions.................................................................................690

18.1.2 List of LIN Controller Interrupt Groups ......................................................................691

18.1.3 List of LIN Controller Ports ........................................................................................691

18.1.4 LIN Controller Block Diagram....................................................................................692

18.2 Control Registers of LIN Controller .....................................................................................693

18.3 Details of LIN Controller ......................................................................................................694

18.3.1 Function of LIN Communication................................................................................694

18.3.2 Operation Timing of LIN Communication ..................................................................697

18.3.3 Setting example of LIN communication ....................................................................700

19. A/D Converter .................................................................................. 705

19.1 Overview of A/D Converter..................................................................................................706

19.1.1 List of A/D Converter Functions ................................................................................706

19.1.2 List of A/D Conversion Clocks...................................................................................707

19.1.3 List of A/D Converter Interrupt Groups......................................................................707

19.1.4 List of A/D Converter Ports .......................................................................................708

19.1.5 A/D Converter Block Diagram ...................................................................................710

19.2 A/D Converter Control Registers.........................................................................................711

19.3 A/D Converter Functions .....................................................................................................718

19.3.1 A/D Conversion Operation ........................................................................................718

19.3.2 A/D Conversion Time ................................................................................................720

19.3.3 A/D Conversion Mode ...............................................................................................723

19.3.4 Conversion Start Trigger Reduction Function ...........................................................725

19.3.5 A/D Conversion Error Detection Function .................................................................726

19.3.6 A/D Conversion State Output Function .....................................................................727

19.3.7 A/D Fault Check Function .........................................................................................728

19.4 Examples of the A/D Converter Settings.............................................................................729

19.4.1 Example of the One-time Conversion Mode settings................................................729

19.4.2 Example of the Continuous Conversion Mode settings ............................................731

19.4.3 Example of Multi A/D Converter Concurrent Conversion settings. ...........................733

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19.5 Notes on Using the A/D Converter ......................................................................................736

19.5.1 Anti-noise Measures .................................................................................................736

19.5.2 Recommended Circuit for Using the A/D Converter .................................................736

20. D/A Converter .................................................................................. 739

20.1 Overview of D/A Converter..................................................................................................740

20.1.1 List of D/A Converter Functions ................................................................................740

20.1.2 D/A Converter Block Diagram ...................................................................................741

20.2 Control Registers of D/A Converter.....................................................................................742

20.3 D/A Converter Functions .....................................................................................................744

20.3.1 Operation of D/A Conversion ....................................................................................744

21. Comparator ...................................................................................... 745

21.1 Overview of Comparator .....................................................................................................746

21.1.1 List of Comparator Functions ....................................................................................746

21.1.2 List of Comparator Interrupt Groups .........................................................................748

21.1.3 List of Comparator Ports ...........................................................................................748

21.1.4 Comparator Block Diagram.......................................................................................750

21.2 Control Registers of Comparator.........................................................................................751

21.3 Details of Comparator .........................................................................................................752

21.3.1 Specification of Comparator......................................................................................752

21.3.2 Setting Example of Comparator ................................................................................757

22. VGA (Variable Gain Amplifier)........................................................ 759

22.1 Overview of VGA.................................................................................................................760

22.1.1 List of VGA Functions ...............................................................................................760

22.1.2 List of VGA Ports.......................................................................................................760

22.1.3 List of VGA Output ....................................................................................................761

22.1.4 VGA Block Diagram ..................................................................................................762

22.2 VGA Control Registers ........................................................................................................763

22.3 Details of VGA.....................................................................................................................764

22.3.1 Specification of VGA .................................................................................................764

22.3.2 Setting Example of VGA ...........................................................................................765

22.3.3 Cautions of VGA .......................................................................................................766

23. Multi Feedback Assist..................................................................... 767

23.1 Overview of Multi Feedback Assist Functions.....................................................................768

23.1.1 The List of Multi Feedback Assist Functions.............................................................768

23.1.2 The Block Diagrams of Multi Feedback Assist Functions .........................................769

23.2 Control Registers for Multi Feedback Assist Functions.......................................................771

23.3 Synchronous Start Control Function ...................................................................................776

23.3.1 The Specifications of Synchronous Start Control Function.......................................776

23.3.2 The Operation Timing of Synchronous Start Control Function..................................777

23.3.3 A Setting Example of Synchronous Start Control Function.......................................778

23.4 Conflict Detection/Auto Avoidance Functions .....................................................................779

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23.4.1 The Specifications of Conflict Detection/Auto Avoidance Functions.........................779

23.4.2 The Operation Timing of Conflict Detection/Auto Avoidance Functions....................782

23.4.3 A Setting Example of Conflict Detection/Auto Avoidance Functions.........................783

23.5 Blanking Function................................................................................................................785

23.5.1 The Specifications of the Blanking Function .............................................................785

23.5.2 The Operation Timing of Blanking Function ..............................................................785

23.5.3 A Setting Example of Blanking Function ...................................................................787

24. Power Supply Voltage Detection.................................................... 789

24.1 Overview of Power Supply Voltage Detection .....................................................................790

24.2 Power Supply Voltage Detection Control Register ..............................................................791

24.3 Detail of Power Supply Voltage Detection...........................................................................792

24.3.1 Specification of Power Supply Voltage Detection .....................................................792

24.3.2 Setting Examples of Power Supply Voltage Detection..............................................794

25. Watchdog Timer............................................................................... 797

25.1 Overview of Watchdog Timer ..............................................................................................798

25.1.1 List of Watchdog Timer Functions.............................................................................798

25.1.2 List of Watchdog Timer Interrupt Group ....................................................................798

25.1.3 Watchdog Timer Block Diagram................................................................................799

25.2 Watchdog Timer Control Registers .....................................................................................800

25.3 Detail of Watchdog Timer ....................................................................................................801

25.3.1 Specification of Watchdog Timer Overflow Detect Function .....................................801

25.3.2 Setting Example of Watchdog Timer Overflow Detect Function ...............................807

26. CRC Calculation Circuit.................................................................. 809

26.1 Overview of CRC Caluculation Function .............................................................................810

26.1.1 List of CRC Caluculation Function ............................................................................810

26.1.2 Block Diagram of CRC Caluculation Function ..........................................................811

26.2 Control Registers of CRC Caluculation Function ................................................................814

26.3 Setting Example of CRC Caluculation Function..................................................................815

27. Clock Monitoring Circuit................................................................. 817

27.1 Overview of Clock Monitoring Function...............................................................................818

27.1.1 Outline Specification of Clock Monitoring Function...................................................818

27.1.2 Outline of Clock Monitoring Interrupt Group..............................................................819

27.1.3 Clock Monitoring Circuit Block Diagram....................................................................819

27.2 Clock Monitoring Control Register.......................................................................................820

27.3 Detail of Clock Monitoring Function.....................................................................................821

27.3.1 Specification of Clock Monitoring Function ...............................................................821

27.3.2 Setting Example of Clock Monitoring Function .........................................................824

28. Internal Flash Memory .................................................................... 833

28.1 Overview of Internal Flash Memory.....................................................................................834

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28.1.1 Outline Specification of Internal Flash Memory.........................................................834

28.1.2 Flash Memory Rewriting Method ..............................................................................835

28.1.3 Flash Memory Area...................................................................................................836

28.1.4 Data Protection Function...........................................................................................838

28.1.5 Sector Swap Function ...............................................................................................839

28.2 Flash Memory Control Registers.........................................................................................840

28.3 Rewriting Function...............................................................................................................842

28.3.1 Execution Method for rewriting..................................................................................842

28.3.2 Procedures for Rewriting...........................................................................................843

28.3.3 Details of Rewriting Commands................................................................................844

29. Debug Interface ............................................................................... 847

29.1 Overview of Debug Interface...............................................................................................848

29.1.1 Port List of Debug Interface ......................................................................................848

29.2 Control Register of Debug Interface ...................................................................................849

29.3 Setting of Trace Clock .........................................................................................................849

29.4 Pin Connection of Serial Programmer / On-board Debugger..............................................850

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KM1M7BF00/02 Series Technical Reference Manual Vol. 1

1. Overview

KM1M7BF00/02 Series

KM1M7BF00/02 Series Technical Reference Manual Vol. 1

June 30.2023 Page 17 of 857 Rev 1.7

1.1 Overview

The KM1M7 function is a 32-bit micro controller with internal Flash memory. It is intended for develop-

ment of the C programming language with object-oriented program and is easy to use. It has fast

feedback processing required for control of power supply and motor.

This LSI adopts the Arm Cortex-M7 to the 32-bit micro controller part and are equipped with internal

memory(Flash and RAM) to instruction / data, DMA controller, clock generator, bus controller, interrupt

controller, standard peripheral circuits (timer and serial interface and so on), PWM control circuit

specialized for power supply and motor control, and high accuracy / high speed analog circuit.

As system safety design, this LSI has the various safety mechanisms (Memory-ECC, clock error

detection, power supply voltage detection, window watchdog timer, etc.).

1.2 Product Summary

The LSI shown in Table 1.2-1 is described in this manual.

Table 1.2-1 Product Summary

LSI series LSI product num-

ber Pins

ROM [KB] RAM [KB]

VGA Package

Instruc-

tion Data Instruc-

tion Data

KM1M7BF0

series

KM1M7BF00N

144

512

64 64

64

Ο

144 pins HQFP

20 mm x 20 mm

KM1M7BF00M 384 48

KM1M7BF00K 256 32

KM1M7BF02N

100

512 64

100pins HQFP

14 mm x 14 mm

KM1M7BF02M 384 48

KM1M7BF02K 256 32

KM1M7BF00/02 Series

June 30.2023 Page 18 of 857 Rev 1.7

KM1M7BF00/02 Series Technical Reference Manual Vol. 1

1.2.1 Function Summary

Table 1.2-2 shows the functions of each product.

Table 1.2-2 The List of Function

Function 144 pins 100 pins

CPU Arm Cortex-M7

General purpose pin 123 82

Operation mode Active mode NORMAL

Standby mode SLEEP, DEEPSLEEP

Debugger I/F Interface SWD

DMA Module/CH number 2 / 16

Interrupt External interrupt 20 18

Timer

16-bit timer

(timer 0 to 13) 14

16-bit timer

(timer 20 to 25) 6

Power control PWM

(GPWM 0 to B) 12 10

Noise filter Target pin External interrupt, Timer input

Communication I/F

Clock synchronous/IIC

(serial 0) 1

Clock synchronous/UART/LIN

(serial 1) 1

Clock synchronous/UART

(serial 2, 5, 6) 3 2

Clock synchronous/SPI/UART

(serial 3 ,4) 2

Clock synchronous/SPI/

UART/IIC

(serial 7)

1

SM Bus 1 -

12-bit A/D

AD0 CH number 16 12

AD1 CH number 16 11

AD2 CH number 16 13

Total CH number 32 23

Programmable gain amplifi-

er(VGA) Module number/CH number 5 / 5

Comparator Module number/CH number 10 / 5

8-bit D/A Module number

10 (for generating comparator reference

voltage)

5 (for generating VGA reference voltage)

10-bit D/A Module number/CH number 2 / 2

KM1M7BF00/02 Series

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June 30.2023 Page 19 of 857 Rev 1.7

Function 144 pins 100 pins

Safety function

Flash memory ECC, Data protection

RAM ECC

Access area MPU (Area management, Protection), Reg-

ister protect (Protection)

System Window watchdog timer

Clock Clock monitoring (External oscillation, PLL

error detection)

Communication CRC caluculation function

A/D converter A/D converter error detection

Power supply voltage POR, Power supply voltage detection

Reset Detection of reset factor immediately before

by reset factor register

KM1M7BF00/02 Series

June 30.2023 Page 20 of 857 Rev 1.7

KM1M7BF00/02 Series Technical Reference Manual Vol. 1

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Nuvoton TRM KM1M7BF00 02 Vol1 Technical Reference Manual

Nuvoton TRM KM1M7BF00 02 Vol1 Technical Reference Manual

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