Nuvoton TRM KM1M7AF00 02 50 52 Vol1 Technical Reference Manual

KM1M7AF00/02/50/52 Series

ARM® Cortex®-M

32-bit Microcontroller

KM1M7AF00/02/50/52 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 KM1M7AF00/02/50/52 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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Table of Contents

1. Overview .............................................................................................. 19

1.1 Overview .................................................................................................................................20

1.2 Product Summary....................................................................................................................20

1.2.1 Function Summary ........................................................................................................21

1.3 Features ..................................................................................................................................23

1.4 Pins .........................................................................................................................................26

1.4.1 Pin Configuration...........................................................................................................26

1.4.2 Pin Functions ................................................................................................................28

1.5 Electrical Characteristics .........................................................................................................49

1.5.1 Absolute Maximum Ratings ..........................................................................................49

1.5.2 Operation Conditions ....................................................................................................50

1.5.3 DC Characteristics ........................................................................................................53

1.5.4 Analog Characteristics ..................................................................................................58

1.5.5 AC Characteristics ........................................................................................................64

1.5.6 Flash EEPROM Characteristics ....................................................................................64

1.6 Package Dimension ................................................................................................................65

1.7 Cautions for Circuit Setup .......................................................................................................67

1.7.1 Cautions of Usage.........................................................................................................67

1.7.2 Pin Connections ............................................................................................................68

1.7.3 Unused pins ..................................................................................................................71

1.7.4 Cautions of Power Supply.............................................................................................72

1.7.5 Example of Oscillator Connection .................................................................................75

2. Safety Function.................................................................................... 77

2.1 Overview .................................................................................................................................78

2.1.1 Flash Memory Data Protection Function.......................................................................78

2.1.2 Flash-ECC Function......................................................................................................78

2.1.3 RAM-ECC function........................................................................................................79

2.1.4 MPU Function ...............................................................................................................79

2.1.5 Register Protection Function.........................................................................................79

2.1.6 WDT Function ...............................................................................................................80

2.1.7 Clock Monitoring Function.............................................................................................80

2.1.8 CRC Caluculation Function...........................................................................................80

2.1.9 A/D Fault Diagnosis Function........................................................................................81

2.1.10 Power Supply Voltage Detection Function ..................................................................81

2.1.11 Reset Factor Identifying Function................................................................................81

2.1.12 IO-level Monitoring Function .......................................................................................81

3. System Settings ................................................................................. 83

3.1 Reset .......................................................................................................................................84

3.1.1 Overview .......................................................................................................................84

3.1.2 Reset Controller Control Register .................................................................................84

3.1.3 Reset Definition.............................................................................................................84

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3.1.4 Identifying Reset Factor ................................................................................................86

3.1.5 Start-Up Sequence after Reset .....................................................................................87

3.2 Flash Option ............................................................................................................................90

3.2.1 Overview of Flash Option..............................................................................................90

3.2.2 Detail of Flash Option....................................................................................................92

3.3 Software Start-UP ...................................................................................................................99

3.3.1 Overview of Software Start-Up......................................................................................99

3.3.2 Examples of Settings ....................................................................................................99

3.4 Clock Generator ....................................................................................................................100

3.4.1 Overview of Clock Generator ......................................................................................100

3.4.2 Clock Generator Control Register ...............................................................................102

3.4.3 Specification of Clock Generator.................................................................................102

3.4.4 Setting Example of Clock Generator...........................................................................107

4. CPU..................................................................................................... 109

4.1 Overview ...............................................................................................................................110

4.1.1 Cortex-M7 Processor and Core Peripheral Structure ................................................ 111

4.1.2 The list of Cortex-M7 Processor and Core Peripheral Interrupts ................................ 112

4.1.3 Block Diagram of Cortex-M7 Processor and Core Peripheral Blocks .........................112

4.2 Cortex-M7 Processor and Core Peripheral Control Register ...............................................113

4.3 Cortex-M7 Processor and Core Peripheral Controls.............................................................113

4.3.1 Enabling writing to the register on the Private Peripheral Bus ....................................113

5. Memory Map .......................................................................................115

5.1 Overview ...............................................................................................................................116

5.2 Memory map .........................................................................................................................117

5.3 Flash Memory Area ...............................................................................................................119

5.3.1 Access Wait Setting to Flash area .............................................................................. 119

5.3.2 Flash-ECC Functions ..................................................................................................119

5.4 ITCM......................................................................................................................................123

5.4.1 ITCM Access Wait Setting...........................................................................................123

5.4.2 RAM-ECC Function (ITCM) ........................................................................................124

5.5 DTCM (D0TCM/D1TCM).......................................................................................................130

5.5.1 DTCM Access Wait Setting .........................................................................................130

5.5.2 RAM-ECC Function (D0TCM/D1TCM) .......................................................................131

5.6 Peripheral Area .....................................................................................................................136

5.6.1 Register Map...............................................................................................................136

6. Low Power Mode ............................................................................... 145

6.1 Overview of Low Power Mode...............................................................................................146

6.1.1 Operation Modes.........................................................................................................146

6.1.2 Operation Mode Transition Diagram ...........................................................................147

6.2 Low Power Mode Control Register........................................................................................148

6.3 Detail of Low Power Mode ....................................................................................................149

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6.3.1 Specification of Operation Mode .................................................................................149

6.3.2 Operating State of Functional Block............................................................................150

6.3.3 Entering and Exiting DEEPSLEEP Mode....................................................................151

6.3.4 Entering and Exiting SLEEP Mode .............................................................................153

6.3.5 Setting Example of Transition of Operation Mode.......................................................155

7. Interrupt Controller............................................................................ 157

7.1 Overview of the Interrupt Controller ......................................................................................158

7.2 Features of the Interrupt Controller .......................................................................................158

7.3 Block Diagram of the Interrupt Controller ..............................................................................158

7.4 The List of the Interrupt Factors ............................................................................................159

7.5 Control Registers of the Interrupt Controller..........................................................................169

7.6 Group Interrupt Function .......................................................................................................170

7.6.1 Overview .....................................................................................................................170

7.6.2 Function Descriptions..................................................................................................171

7.6.3 Example of Interrupt Settings......................................................................................172

7.7 Pin Protection Factor Detection Function..............................................................................177

8. DMA Controller .................................................................................. 179

8.1 Overview ...............................................................................................................................180

8.1.1 Functions of DMA controller........................................................................................180

8.1.2 Interrupt group list of DMA controller ..........................................................................181

8.1.3 DMA transfer factor list................................................................................................184

8.1.4 Block diagram of DMA controller.................................................................................188

8.2 Control Registers of DMA controller......................................................................................189

8.3 DMA controller operation.......................................................................................................195

8.3.1 DMA transfer target.....................................................................................................195

8.3.2 DMA transfer operation ...............................................................................................196

8.3.3 Addressing mode ........................................................................................................202

8.3.4 Priority level.................................................................................................................202

8.3.5 DMA transfer operation in DEEPSLEEP.....................................................................202

8.4 Setting example of DMA transfer ..........................................................................................203

9. I/O Port................................................................................................ 205

9.1 Overview of I/O Ports ............................................................................................................206

9.1.1 The List of I/O Ports ....................................................................................................209

9.1.2 The Default States of the I/O Ports .............................................................................213

9.1.3 The Circuit Diagram of the I/O Ports ...........................................................................217

9.2 I/O Port Control Registers .....................................................................................................218

10. Noise Filter....................................................................................... 223

10.1 Overview of Noise Filter ......................................................................................................224

10.1.1 List of Noise Filter Function.......................................................................................224

10.1.2 Noise Filter Block Diagram........................................................................................224

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10.2 Control Registers of Noise Filter .........................................................................................226

10.3 Function of Noise Filter .......................................................................................................227

10.3.1 Specification of Noise Filter.......................................................................................227

10.3.2 Setting Example of Noise Filter.................................................................................228

11. 16-bit Timer ...................................................................................... 231

11.1 Overview of 16-bit Timer......................................................................................................232

11.1.1 List of 16-bit Timer.....................................................................................................232

11.1.2 List of 16-bit Timer Clock Sources.............................................................................233

11.1.3 List of 16-bit Timer Interrupt Groups..........................................................................234

11.1.4 List of 16-bit Timer Ports ...........................................................................................237

11.1.5 16-bit Timer Block Structure ......................................................................................243

11.2 16-bit Timer Control Register...............................................................................................246

11.3 Interval Timer.......................................................................................................................267

11.3.1 Function of Interval Timer..........................................................................................267

11.3.2 Timing of Interval Timer Operation ............................................................................268

11.3.3 Example of Interval Timer Settings............................................................................270

11.4 Timer Output........................................................................................................................272

11.4.1 Function of Timer Output...........................................................................................272

11.4.2 Timing of Timer Output Operation .............................................................................273

11.4.3 Example of Timer Output Settings.............................................................................274

11.5 PWM Output ........................................................................................................................276

11.5.1 Function of PWM Output ...........................................................................................276

11.5.2 Timing of PWM Output Operation .............................................................................277

11.5.3 Example of PWM Output Settings.............................................................................278

11.6 Event Count.........................................................................................................................280

11.6.1 Function of Event Count............................................................................................280

11.6.2 Timing of Event Count Operation ..............................................................................281

11.6.3 Example of Event Count Settings..............................................................................283

11.7 Phase Difference Pulse Count ............................................................................................285

11.7.1 Function of Phase Difference Pulse Count................................................................285

11.7.2 Timing of Phase Difference Pulse Count Operat.......................................................286

11.7.3 Example of Phase Difference Pulse Count Settings .................................................288

11.8 Up/Down Pulse Count .........................................................................................................290

11.8.1 Function of Up/Down Pulse Count ............................................................................290

11.8.2 Timing of Up/Down Pulse Count Operation...............................................................291

11.8.3 Example of Up/Down Pulse Count Settings ..............................................................292

11.9 Input Capture.......................................................................................................................294

11.9.1 Function of Input Capture..........................................................................................294

11.9.2 Timing of Input Capture Operation ............................................................................295

11.9.3 Example of Input Capture Operation Settings...........................................................296

11.10 1-Shot Output ....................................................................................................................298

11.10.1 Function of 1-Shot Output .......................................................................................298

11.10.2 Timing of 1-Shot Output Operation..........................................................................299

11.10.3 Example of 1-Shot Output Operation ......................................................................300

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11.11 External Trigger .................................................................................................................302

11.11.1 Function of External Trigger ....................................................................................302

11.11.2 Timing of External Trigger Operation.......................................................................303

11.11.3 Example of External Trigger Settings ......................................................................304

11.12 Output Protection...............................................................................................................306

11.12.1 Function of Output Protection..................................................................................306

11.12.2 Timing of Output Protection Operation ....................................................................308

11.12.3 Example of Output Protection Settings ...................................................................310

11.13 Timer Interrupt Output Control...........................................................................................312

11.13.1 Function of Timer Interrupt Output Control..............................................................312

11.13.2 Timing of Timer Interrupt Output Control Operation ................................................313

11.13.3 Example of Timer Interrupt Output Control..............................................................314

11.14 A/D Converter Start ...........................................................................................................316

11.14.1 Function of A/D Converter Start ..............................................................................316

11.14.2 Timing of A/D Conversion Start Operation ..............................................................317

11.14.3 Example of A/D Converter Setting ..........................................................................318

11.15 Cascade Connection .........................................................................................................320

11.15.1 List of Cascade Connection Timer Functions..........................................................321

11.15.2 Function of Cascade Connection Timer ..................................................................323

11.15.3 Timing of Cascade Connection Timer Operation.....................................................325

11.15.4 Timing of Cascade Connection Interval Timer Operation........................................326

11.15.5 Example of Cascade Connection Timer Setting......................................................327

11.16 Phase Complementary PWM Output ................................................................................329

11.16.1 Function of Phase Complementary PWM Output ...................................................329

11.16.2 Timing of Phase Complementary PWM Output Operation......................................330

11.16.3 Example of Phase Complementary PWM Output Setting .......................................331

11.17 Dead Time .........................................................................................................................333

11.17.1 Function of Dead Time ............................................................................................333

11.17.2 Timing of Dead Time Operation...............................................................................334

11.17.3 Function of Dead Time Width Automatic Control ....................................................335

11.17.4 Timing of Dead Time Width Automatic Control Operation.......................................335

11.17.5 Example of Dead Time Setting................................................................................337

11.18 Output Shift........................................................................................................................340

11.18.1 Function of Output Shift...........................................................................................340

11.18.2 Timing of Output Shift Operation .............................................................................341

11.18.3 Example of Output Shift Setting ..............................................................................342

11.19 Duty Cut.............................................................................................................................344

11.19.1 Function of Duty Cut................................................................................................344

11.19.2 Timing of Duty Cut Operation ..................................................................................345

11.19.3 Example of Duty Cut Setting ...................................................................................346

11.20 Period cut ..........................................................................................................................348

11.20.1 Function of Period Cut.............................................................................................348

11.20.2 Timing of Period Cut Operation ...............................................................................349

11.20.3 Example of Period Cut Setting ................................................................................351

11.21 Leading Edge Blanking......................................................................................................353

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11.21.1 Function of Leading Edge Blanking.........................................................................353

11.21.2 Timing of Leading Edge Blanking Operation ...........................................................354

11.21.3 Example of Leading Edge Blanking Setting ............................................................355

11.22 Task Overflow Detection....................................................................................................357

11.22.1 Function of Task Overflow Detection.......................................................................357

11.22.2 Timing of Task Overflow Detection Operation .........................................................358

11.22.3 Example of Task Overflow Detection Setting ..........................................................359

12. Power Control PWM ........................................................................ 361

12.1 Overview of Power Control PWM........................................................................................362

12.1.1 List of Power Control PWM Functions ......................................................................363

12.1.2 List of Power Control PWM Clock Sources...............................................................364

12.1.3 List of Power Control PWM Interrupt Groups............................................................364

12.1.4 List of Power Control PWM Ports..............................................................................365

12.1.5 Power Control PWM Block Diagram .........................................................................367

12.2 Control Registers for the Power Control PWM....................................................................368

12.3 Basic Operation of the Power Control PWM .......................................................................380

12.3.1 Waveform Mode ........................................................................................................380

12.3.2 GPWM Cycle Setting ................................................................................................382

12.3.3 GPWM Output Start and Stop...................................................................................382

12.3.4 Output Waveform Polarity .........................................................................................384

12.3.5 Double Buffer ............................................................................................................385

12.3.6 Double Buffer Load Timing........................................................................................387

12.4 Dead Time Setting Function ................................................................................................389

12.4.1 Details of the Dead Time Setting Function................................................................389

12.4.2 Dead Time Period Auto Control Function..................................................................391

12.5 "H"/"L" Level Output Function .............................................................................................392

12.5.1 Setting "H"/"L" Level Output Function .......................................................................392

12.5.2 Inserting Dead Time when Outputting "H"/"L" Levels................................................394

12.6 Output Shift Function...........................................................................................................395

12.6.1 Details of Output Shift Function ................................................................................395

12.7 Interrupt Output Control Function........................................................................................396

12.7.1 Details of Interrupt Output Control Function..............................................................396

12.8 Output Protection Function..................................................................................................398

12.8.1 Details of the Output Protection Function .................................................................398

12.9 Synchronous A/D Conversion Start Function......................................................................400

12.9.1 Details of Synchronous A/D Conversion Start Function............................................400

12.10 Count State Output Function.............................................................................................402

12.10.1 Details of Count State Output Function...................................................................402

12.11 Pin Output Order Selection................................................................................................403

12.11.1 Details of Pin Output Order Selection .....................................................................403

12.12 High-Resolution Output Function ......................................................................................404

12.12.1 High-Resolution Duty Function ...............................................................................404

12.12.2 High-Resolution Output Shift Function....................................................................406

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12.12.3 High-Resolution Cycle Function..............................................................................407

12.13 Duty Cut Function..............................................................................................................408

12.13.1 Details of Duty Cut Function ...................................................................................408

12.13.2 The Operation Timing of Duty Cut Function............................................................409

12.14 Period Cut Function...........................................................................................................410

12.14.1 Details of Period Cut Function ................................................................................410

12.14.2 The Operation Timing of Period Cut Function......................................................... 411

13. Serial Interface 0.............................................................................. 413

13.1 Overview of Serial Interface ................................................................................................414

13.1.1 List of Serial Interface Functions...............................................................................415

13.1.2 List of Serial Interface Clocks....................................................................................416

13.1.3 List of Serial Interface Interrupt Groups ....................................................................417

13.1.4 List of Serial Interface Ports ......................................................................................417

13.1.5 Serial Interface Block Diagram..................................................................................418

13.2 Serial Interface Control Registers .......................................................................................419

13.3 Clock Specification ..............................................................................................................420

13.3.1 Clock Source.............................................................................................................421

13.3.2 Transfer Clock ...........................................................................................................423

13.4 Clock-Synchronous Serial Interface ....................................................................................424

13.4.1 Communication Function of Clock-Synchronous ......................................................424

13.4.2 Clock-Synchronous Communication Timing .............................................................436

13.4.3 Clock-Synchronous Setup Example..........................................................................441

13.5 IIC Communication .............................................................................................................447

13.5.1 Communication Function of IIC.................................................................................447

13.5.2 IIC Communication Timing ........................................................................................457

13.5.3 IIC Communication Setup Example ..........................................................................460

14. Serial Interface 1,2,5,6..................................................................... 465

14.1 Overview of Serial Interface ................................................................................................466

14.1.1 List of Serial Interface Functions...............................................................................467

14.1.2 List of Serial Interface Clocks....................................................................................469

14.1.3 List of Serial Interface Interrupt Groups ....................................................................470

14.1.4 List of Serial Interface Ports ......................................................................................471

14.1.5 Serial Interface Block Diagram..................................................................................472

14.2 Serial Interface Control Registers .......................................................................................473

14.3 Clock Specification ..............................................................................................................475

14.3.1 Clock Source.............................................................................................................476

14.3.2 Transfer Clock ...........................................................................................................478

14.4 Clock-Synchronous Serial Interface ....................................................................................479

14.4.1 Communication Function of Clock-Synchronous ......................................................479

14.4.2 Clock-Synchronous Communication Timing .............................................................492

14.4.3 Clock-Synchronous Setup Example..........................................................................497

14.5 UART Serial Interface .........................................................................................................504

14.5.1 Communication Function of UART............................................................................504

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14.5.2 UART Communication Timing...................................................................................513

14.5.3 UART Setup Example ...............................................................................................515

15. Serial Interface 3,4........................................................................... 519

15.1 Overview of Serial Interface ................................................................................................520

15.1.1 List of Serial Interface Functions...............................................................................521

15.1.2 List of Serial Interface Clocks....................................................................................522

15.1.3 List of Serial Interface Interrupt Groups ....................................................................523

15.1.4 List of Serial Interface Ports ......................................................................................524

15.1.5 Serial Interface Block Diagram..................................................................................525

15.2 Serial Interface Control Registers .......................................................................................526

15.3 Clock Specification ..............................................................................................................527

15.3.1 Clock Source.............................................................................................................528

15.3.2 Transfer Clock ...........................................................................................................530

15.4 Clock-Synchronous Serial Interface ....................................................................................531

15.4.1 Communication Function of Clock-Synchronous ......................................................531

15.4.2 Clock-Synchronous Communication Timing .............................................................546

15.4.3 Clock-Synchronous Setup Example..........................................................................551

15.5 UART Serial Interface .........................................................................................................558

15.5.1 Communication Function of UART............................................................................558

15.5.2 UART Communication Timing...................................................................................566

15.5.3 UART Setup Example ...............................................................................................568

16. Serial Interface 7.............................................................................. 573

16.1 Overview of Serial Interface 7 .............................................................................................574

16.1.1 List of Serial Interface 7 Functions............................................................................574

16.1.2 List of Serial Interface 7 Interrupt Groups .................................................................576

16.1.3 List of Serial Interface 7 Ports ...................................................................................576

16.2 Serial Interface 7 Control Registers ....................................................................................577

16.3 Clock Specification ..............................................................................................................580

16.3.1 Clock Source.............................................................................................................582

16.3.2 Transfer Clock of Clock-Synchronous Communication.............................................583

16.3.3 Transfer Clock of UART ............................................................................................584

16.3.4 Transfer Clock of IIC .................................................................................................584

16.4 Clock-Synchronous Communication ...................................................................................587

16.4.1 Communication Function of Clock-Synchronous ......................................................587

16.4.2 Communication Timing of Clock-Synchronous ........................................................601

16.4.3 Example of Clock-Synchronous Communication Setting..........................................606

16.5 UART Communication.........................................................................................................613

16.5.1 Communication Functions of UART..........................................................................613

16.5.2 Communication Timing of UART ..............................................................................620

16.5.3 Example of UART Communication Setting ..............................................................622

16.6 IIC Communication..............................................................................................................627

16.6.1 Communication Function of IIC.................................................................................627

16.6.2 IIC Communication Flowchart ...................................................................................639

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16.6.3 Example of IIC Communication Setting ...................................................................650

16.6.4 Access Timing of IIC .................................................................................................677

17. SMBus Interface .............................................................................. 679

17.1 Overview of SMBus Interface..............................................................................................680

17.1.1 List of SMBus Interface Functions ............................................................................680

17.1.2 List of SMBus Interface Clocks .................................................................................681

17.1.3 List of SMBus Interface Interrupt Groups..................................................................681

17.1.4 List of SMBus Interface Ports....................................................................................681

17.1.5 SMBus Interface Block Diagram ...............................................................................682

17.2 SMBus Interface Control Registers .....................................................................................683

17.3 Clock Specification ..............................................................................................................684

17.4 SMBus Communication.......................................................................................................685

17.4.1 Communication Function of SMBus..........................................................................685

17.4.2 Setting Example of SMBus (At Slave Communication).............................................693

17.4.3 Setting Example of SMBus (At Master Communication)...........................................701

18. LIN Controller................................................................................... 707

18.1 Overview of LIN Controller ..................................................................................................708

18.1.1 List of LIN Controller Functions.................................................................................708

18.1.2 List of LIN Controller Interrupt Groups ......................................................................709

18.1.3 List of LIN Controller Ports ........................................................................................709

18.1.4 LIN Controller Block Diagram....................................................................................710

18.2 Control Registers of LIN Controller .....................................................................................711

18.3 Details of LIN Controller ......................................................................................................712

18.3.1 Function of LIN Communication................................................................................712

18.3.2 Operation Timing of LIN Communication ..................................................................715

18.3.3 Setting example of LIN communication ....................................................................718

19. CAN FD Controller........................................................................... 723

19.1 Overview of CAN FD Controller ..........................................................................................724

19.1.1 List of CAN FD Controller Function...........................................................................724

19.1.2 List of CAN Controller Interrupt Groups ....................................................................725

19.1.3 List of CAN controller Ports.......................................................................................725

19.1.4 CAN FD controller Block Diagram.............................................................................726

19.2 Control Registers of CAN FD Controller..............................................................................727

19.3 Memory Map .......................................................................................................................731

19.4 Functions of CAN FD Controller..........................................................................................732

19.4.1 Message Transmission and Reception Function ......................................................732

19.4.2 Operation Mode ........................................................................................................733

19.4.3 Timestamp.................................................................................................................742

19.4.4 Timeout Counter........................................................................................................743

19.4.5 Rx Handling...............................................................................................................744

19.4.6 Tx Handling ...............................................................................................................753

19.4.7 FIFO Acknowledge Handling ....................................................................................757

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19.4.8 Bit Timing ..................................................................................................................758

19.4.9 Watchdog Timer ........................................................................................................759

19.4.10 Error Counter ..........................................................................................................759

19.4.11 Bus-Off ....................................................................................................................759

19.5 Setting Example of CAN FD Controller Function ................................................................760

19.5.1 Initial Setting of CAN FD Controller...........................................................................760

19.5.2 Initial Setting of Message RAM .................................................................................762

19.5.3 Setting of Bit Timing ..................................................................................................762

19.5.4 Setting of Interrupt.....................................................................................................763

19.5.5 Setting of Message RAM ..........................................................................................763

19.5.6 Setting of Message Transmission .............................................................................765

19.5.7 Setting of Tx Buffer Element .....................................................................................768

19.5.8 Setting of Message Reception ..................................................................................771

19.5.9 Setting of External Timestamp ..................................................................................772

19.6 Message RAM.....................................................................................................................773

19.6.1 Standard Message ID (11-bit) Filter Element ............................................................775

19.6.2 Extended Message ID (29-bit) Filter Element ...........................................................777

19.6.3 Rx Buffer and FIFO Element.....................................................................................779

19.6.4 Tx Event FIFO Element.............................................................................................782

19.6.5 Tx Buffer Element .....................................................................................................784

19.7 ECC Function of Message RAM .........................................................................................787

19.7.1 Specification of ECC Function ..................................................................................787

20. A/D Converter .................................................................................. 789

20.1 Overview of A/D Converter..................................................................................................790

20.1.1 List of A/D Converter Functions ................................................................................790

20.1.2 List of A/D Conversion Clocks...................................................................................791

20.1.3 List of A/D Converter Interrupt Groups......................................................................791

20.1.4 List of A/D Converter Ports .......................................................................................792

20.1.5 A/D Converter Block Diagram ...................................................................................794

20.2 A/D Converter Control Registers.........................................................................................795

20.3 A/D Converter Functions .....................................................................................................802

20.3.1 A/D Conversion Operation ........................................................................................802

20.3.2 A/D Conversion Time ................................................................................................804

20.3.3 A/D Conversion Mode ...............................................................................................807

20.3.4 Conversion Start Trigger Reduction Function ...........................................................809

20.3.5 A/D Conversion Error Detection Function .................................................................810

20.3.6 A/D Conversion State Output Function ..................................................................... 811

20.3.7 A/D Fault Check Function .........................................................................................812

20.4 Examples of the A/D Converter Settings.............................................................................813

20.4.1 Example of the One-time Conversion Mode settings................................................813

20.4.2 Example of the Continuous Conversion Mode settings ............................................815

20.4.3 Example of Multi A/D Converter Concurrent Conversion settings. ...........................817

20.5 Notes on Using the A/D Converter ......................................................................................820

20.5.1 Anti-noise Measures .................................................................................................820

20.5.2 Recommended Circuit for Using the A/D Converter .................................................820

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21. D/A Converter .................................................................................. 823

21.1 Overview of D/A Converter..................................................................................................824

21.1.1 List of D/A Converter Functions ................................................................................824

21.1.2 D/A Converter Block Diagram ...................................................................................825

21.2 Control Registers of D/A Converter.....................................................................................826

21.3 D/A Converter Functions .....................................................................................................829

21.3.1 Operation of D/A Conversion ....................................................................................829

21.3.2 Function of Slope Compensation ..............................................................................830

21.4 Setting Example of Slope Compensation............................................................................831

22. Comparator ...................................................................................... 833

22.1 Overview of Comparator .....................................................................................................834

22.1.1 List of Comparator Functions ....................................................................................834

22.1.2 List of Comparator Interrupt Groups .........................................................................836

22.1.3 List of Comparator Ports ...........................................................................................836

22.1.4 Comparator Block Diagram.......................................................................................838

22.2 Control Registers of Comparator.........................................................................................839

22.3 Details of Comparator .........................................................................................................840

22.3.1 Specification of Comparator......................................................................................840

22.3.2 Setting Example of Comparator ................................................................................845

23. VGA (Variable Gain Amplifier) ........................................................ 847

23.1 Overview of VGA.................................................................................................................848

23.1.1 List of VGA Functions ...............................................................................................848

23.1.2 List of VGA Ports.......................................................................................................848

23.1.3 List of VGA Output ....................................................................................................849

23.1.4 VGA Block Diagram ..................................................................................................850

23.2 VGA Control Registers ........................................................................................................851

23.3 Details of VGA.....................................................................................................................852

23.3.1 Specification of VGA .................................................................................................852

23.3.2 Setting Example of VGA ...........................................................................................853

23.3.3 Cautions of VGA .......................................................................................................854

24. Multi Feedback Assist..................................................................... 855

24.1 Overview of Multi Feedback Assist Functions.....................................................................856

24.1.1 The List of Multi Feedback Assist Functions.............................................................856

24.1.2 The Block Diagrams of Multi Feedback Assist Functions .........................................857

24.2 Control Registers for Multi Feedback Assist Functions.......................................................859

24.3 Synchronous Start Control Function ...................................................................................864

24.3.1 The Specifications of Synchronous Start Control Function.......................................864

24.3.2 The Operation Timing of Synchronous Start Control Function..................................865

24.3.3 A Setting Example of Synchronous Start Control Function.......................................866

24.4 Conflict Detection/Auto Avoidance Functions .....................................................................867

24.4.1 The Specifications of Conflict Detection/Auto Avoidance Functions.........................867

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24.4.2 The Operation Timing of Conflict Detection/Auto Avoidance Functions....................870

24.4.3 A Setting Example of Conflict Detection/Auto Avoidance Functions.........................871

24.5 Blanking Function................................................................................................................873

24.5.1 The Specifications of the Blanking Function .............................................................873

24.5.2 The Operation Timing of Blanking Function ..............................................................873

24.5.3 A Setting Example of Blanking Function ...................................................................875

25. Power Supply Voltage Detection.................................................... 877

25.1 Overview of Power Supply Voltage Detection .....................................................................878

25.2 Power Supply Voltage Detection Control Register ..............................................................879

25.3 Detail of Power Supply Voltage Detection...........................................................................880

25.3.1 Specification of Power Supply Voltage Detection .....................................................880

25.3.2 Setting Examples of Power Supply Voltage Detection..............................................882

26. Watchdog Timer............................................................................... 885

26.1 Overview of Watchdog Timer ..............................................................................................886

26.1.1 List of Watchdog Timer Functions.............................................................................886

26.1.2 List of Watchdog Timer Interrupt Group ....................................................................886

26.1.3 Watchdog Timer Block Diagram................................................................................887

26.2 Watchdog Timer Control Registers .....................................................................................888

26.3 Detail of Watchdog Timer ....................................................................................................889

26.3.1 Specification of Watchdog Timer Overflow Detect Function .....................................889

26.3.2 Setting Example of Watchdog Timer Overflow Detect Function ...............................895

27. CRC Calculation Circuit.................................................................. 897

27.1 Overview of CRC Caluculation Function .............................................................................898

27.1.1 List of CRC Caluculation Function ............................................................................898

27.1.2 Block Diagram of CRC Caluculation Function ..........................................................899

27.2 Control Registers of CRC Caluculation Function ................................................................902

27.3 Setting Example of CRC Caluculation Function..................................................................903

28. Clock Monitoring Circuit................................................................. 905

28.1 Overview of Clock Monitoring Function...............................................................................906

28.1.1 Outline Specification of Clock Monitoring Function...................................................906

28.1.2 Outline of Clock Monitoring Interrupt Group..............................................................907

28.1.3 Clock Monitoring Circuit Block Diagram....................................................................907

28.2 Clock Monitoring Control Register.......................................................................................908

28.3 Detail of Clock Monitoring Function.....................................................................................909

28.3.1 Specification of Clock Monitoring Function ...............................................................909

28.3.2 Setting Example of Clock Monitoring Function .........................................................912

29. Internal Flash Memory .................................................................... 919

29.1 Overview of Internal Flash Memory.....................................................................................920

29.1.1 Outline Specification of Internal Flash Memory.........................................................920

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29.1.2 Flash Memory Rewriting Method ..............................................................................921

29.1.3 Flash Memory Area...................................................................................................922

29.1.4 Data Protection Function...........................................................................................924

29.1.5 Sector Swap Function ...............................................................................................925

29.2 Flash Memory Control Registers.........................................................................................926

29.3 Rewriting Function...............................................................................................................928

29.3.1 Execution Method for rewriting..................................................................................928

29.3.2 Procedures for Rewriting...........................................................................................929

29.3.3 Details of Rewriting Commands................................................................................930

30. Debug Interface ............................................................................... 933

30.1 Overview of Debug Interface...............................................................................................934

30.1.1 Port List of Debug Interface ......................................................................................934

30.2 Control Register of Debug Interface ...................................................................................935

30.3 Setting of Trace Clock .........................................................................................................935

30.4 Pin Connection of Serial Programmer / On-board Debugger..............................................936

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KM1M7AF00/02/50/52 Series Technical Reference Manual Vol. 1

1. Overview

KM1M7AF00/02/50/52 Series

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June 30.2023 Page 19 of 985 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 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]

CAN VGA Package

Instruc-

tion Data Instruc-

tion Data

KM1M7AF0

series

KM1M7AF00N

144

512

64 64

64

- Ο

144 pins HQFP

20 mm x 20 mm

KM1M7AF00M 384 48

KM1M7AF00K 256 32

KM1M7AF02N

100

512 64

100pins HQFP

14 mm x 14 mm

KM1M7AF02M 384 48

KM1M7AF02K 256 32

KM1M7AF5

series

KM1M7AF50N

144

512

64 64

64

Ο Ο

144 pins HQFP

20 mm x 20 mm

KM1M7AF50M 384 48

KM1M7AF50K 256 32

KM1M7AF52N

100

512 64

100 pins HQFP

14 mm x 14 mm

KM1M7AF52M 384 48

KM1M7AF52K 256 32

Hint:

In this manual, the product names are classified as follows.

KM1M7AFxyz (x = 0, 5 y = 0, 2 z = N, M, K)

KM1M7AF00/02/50/52 Series

June 30.2023 Page 20 of 985 Rev 1.7

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Nuvoton TRM KM1M7AF00 02 50 52 Vol1 Technical Reference Manual

Nuvoton TRM KM1M7AF00 02 50 52 Vol1 Technical Reference Manual

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