Fujitsu 8FX

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MN702-00009-2v0-E FUJITSU SEMICONDUCTOR LIMITED 493

CHAPTER 24

C BUS INTERFACE

This chapter describes functions and

operations of the I

C bus interface.

24.1 Overview

24.2 Configuration

24.3 Channel

24.4 Pins

24.5 Interrupts

24.6 Operations and Setting Procedure Example

24.7 Registers

24.8 Notes on Using I

C Bus Interface

Main Page

Default Chapter9
- Table of Contents9
Chapter 1 Memory Access Mode23
- Memory Access Mode24
Chapter 2 Cpu25
- Dedicated Registers26
- General-Purpose Register33
- Placement of 16-Bit Data in Memory35
Chapter 3 Clock Controller37
- Overview38
- Oscillation Stabilization Wait Time46
- Registers49
- Clock Modes59
- Operations in Low Power Consumption Mode (Standby Mode)63
- Clock Oscillator Circuit76
- Overview of Prescaler77
- Configuration of Prescaler78
- Operation of Prescaler79
- Notes on Using Prescaler81
Chapter 4 Reset83
- Reset Operation84
- Register88
  - Reset Source Register (RSRR)89
- Notes on Using Reset92
Chapter 5 Interrupts93
- Interrupts94
Chapter 6 I/O Port103
- Overview104
- Configuration and Operations105
Chapter 7 Time-Base Timer109
- Overview110
- Configuration111
- Interrupt113
- Operations and Setting Procedure Example114
- Register117
  - Time-Base Timer Control Register (TBTC)118
- Notes on Using Time-Base Timer120
Chapter 8 Hardware/Software Watchdog Timer121
- Overview122
- Configuration123
- Operations and Setting Procedure Example125
- Register128
  - Watchdog Timer Control Register (WDTC)129
- Notes on Using Watchdog Timer131
Chapter 9 Watch Prescaler133
- Overview134
- Configuration135
- Interrupt137
- Operations and Setting Procedure Example138
- Register141
  - Watch Prescaler Control Register (WPCR)142
- Notes on Using Watch Prescaler144
Chapter 10 Wild Register Function145
- Overview146
- Configuration147
- Operations149
- Registers150
- Typical Hardware Connection Example155
Chapter 11 8/16-Bit Composite Timer157
- Overview158
- Configuration160
- Channel163
- Pins164
- Interrupts165
- Operation of Interval Timer Function (One-Shot Mode)166
- Operation of Interval Timer Function (Continuous Mode)168
- Operation of Interval Timer Function (Free-Run Mode)170
- Operation of PWM Timer Function (Fixed-Cycle Mode)172
- Operation of PWM Timer Function (Variable-Cycle Mode)174
- 11.11 Operation of PWC Timer Function176
- 11.12 Operation of Input Capture Function178
- 11.13 Operation of Noise Filter180
- 11.14 Registers181
- 11.15 Notes on Using 8/16-Bit Composite Timer195
Chapter 12 External Interrupt Circuit197
- Overview198
- Configuration199
- Channels200
- Pin201
- Interrupt202
- Operations and Setting Procedure Example203
- Register205
  - External Interrupt Control Register (EIC)206
- Notes on Using External Interrupt Circuit208
Chapter 13 Interrupt Pin Selection Circuit209
- Overview210
- Configuration211
- Pins212
- Operation213
- Register214
  - Interrupt Pin Selection Circuit Control Register (WICR)215
- Notes on Using Interrupt Pin Selection Circuit218
Chapter 14 Lin-Uart219
- Overview220
- Configuration222
- Reload Counter223
- Pins227
- Interrupts228
  - Timing of Receive Interrupt Generation and Flag Set231
  - Timing of Transmit Interrupt Generation and Flag Set233
- LIN-UART Baud Rate235
  - Baud Rate Setting237
  - Reload Counter241
- Operations of LIN-UART and LIN-UART Setting Procedure Example243
- Registers265
- Notes on Using LIN-UART280
Chapter 15 8/10-Bit A/D Converter286
- Overview286
- Configuration287
- Pin289
- Interrupt290
- Operations and Setting Procedure Example291
- Registers294
- Notes on Using 8/10-Bit A/D Converter300
Chapter 16 Low-Voltage Detection Reset Circuit303
- Overview304
- Configuration305
- Pins306
- Operation307
- Register308
  - LVD Reset Voltage Selection ID Register (LVDR)309
Chapter 17 Clock Supervisor Counter311
- Overview312
- Configuration313
- Operations315
- Registers320
  - Clock Monitoring Data Register (CMDR)321
  - Clock Monitoring Control Register (CMCR)322
- Notes on Using Clock Supervisor Counter324
Chapter 18 8/16-Bit Ppg327
- Overview328
- Configuration329
- Channel331
- Pins332
- Interrupt333
- Operations and Setting Procedure Example334
- Registers342
- Notes on Using 8/16-Bit PPG353
Chapter 19 16-Bit Ppg Timer355
- Overview356
- Configuration357
- Channel359
- Pins360
- Interrupts361
- Operations and Setting Procedure Example362
- Registers366
- Notes on Using 16-Bit PPG Timer374
Chapter 20 16-Bit Reload Timer375
- Overview376
- Configuration378
- Channel380
- Pins381
- Interrupt382
- Operations and Setting Procedure Example383
  - Internal Clock Mode385
  - Event Count Mode389
- Registers391
- Notes on Using 16-Bit Reload Timer398
Chapter 21 Multi-Pulse Generator399
- Overview400
- Block Diagram403
- Pins411
- Interrupts412
- Operations414
- Registers448
- Notes on Using Multi-Pulse Generator472
- Sample Program for Multi-Pulse Generator474
Chapter 22 Uart/Sio477
- Overview478
- Configuration479
- Channel481
- Pins482
- Interrupts483
- Operations and Setting Procedure Example484
  - Operations in Operation Mode 0485
  - Operations in Operation Mode 1492
- Registers498
Chapter 23 Uart/Sio Dedicated Baud Rate Generator507
- Overview508
- Channel509
- Operations510
- Registers511
  - UART/SIO Dedicated Baud Rate Generator Prescaler Select Register Ch. N (Pssrn)512
  - UART/SIO Dedicated Baud Rate Generator Baud Rate Setting Register Ch. N (Brsrn)513
Chapter 24 I 2 C Bus Interface515
- Overview516
- Configuration517
- Channel520
- Pins521
- Interrupts522
- Operations and Setting Procedure Example524
  - C Bus Interface525
  - Function to Wake up the MCU from Standby Mode533
- Registers535
- Notes on Using I 2 C Bus Interface550
Chapter 25 Example of Serial Programming Connection553
- Basic Configuration of Serial Programming Connection554
- Example of Serial Programming Connection555
Chapter 26 Dual Operation Flash Memory557
- Overview558
- Sector/Bank Configuration560
- Invoking Flash Memory Automatic Algorithm561
- Checking Automatic Algorithm Execution Status563
- Programming/Erasing Flash Memory571
- Operations581
- Flash Security583
- Registers584
- Notes on Using Dual Operation Flash Memory602
Chapter 27 Non-Volatile Register (Nvr) Interface603
- Overview604
- Configuration605
- Registers606
- Notes on Main CR Clock Trimming611
- Notes on Using NVR Interface613
Chapter 28 Comparator615
- Overview616
- Configuration617
- Pins619
- Interrupt620
- Operations and Setting Procedure Example621
- Register622
  - Comparator Control Register (CMR0C)623
Chapter 29 System Configuration Controller625
- Overview626
- Register627
  - System Configuration Register (SYSC)628
- Notes on Using Controller630
Appendix631
- APPENDIX A Instruction Overview632
APPENDIX A Instruction Overview647

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