Renesas 7751 SERIES Manuals

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Renesas 7751 SERIES User Manual (540 pages)

MITSUBISHI 16-BIT SINGLE-CHIP MICROCOMPUTER

Brand: Renesas | Category: Computer Hardware | Size: 5.54 MB

Table of Contents
4
Chapter 1 . Description

12
- Performance Overview
  
  12
- Pin Configuration
  
  12
- Pin Description
  
  12
- Block Diagram
  
  12
Chapter 2. Central Processing Unit (Cpu)

20
- Accumulator (Acc)
  21
- Index Register X (X)
  21
- Index Register y (Y)
  21
- Stack Pointer (S)
  21
- Program Counter (PC)
  23
- Program Bank Register (PG)
  23
- Data Bank Register (DT)
  25
- Direct Page Register (DPR)
  25
- Processor Status Register (PS)
  27
- Bus Interface Unit
  
  29
- Access Space
  
  36
  - Banks
    37
  - Direct Page
    37
- Memory Assignment
  
  38
  - Memory Assignment in Internal Area
    38
- Processor Modes
  
  41
Chapter 3 INPUT/OUTPUT PINS

48
- Programmable I/O Ports
  
  48
  - Direction Register
    50
  - Port Register
    51
- I/O Pins of Internal Peripheral Devices
  
  55
Chapter 4. Interrupts

56
- Overview
  
  56
- Interrupt Sources
  
  56
- Interrupt Control
  
  56
- Interrupt Priority Level
  
  65
- Interrupt Priority Level Detection Circuit
  
  66
- Interrupt Priority Level Detection Time
  
  68
- Sequence from Acceptance of Interrupt Request to Execution of Interrupt Routine
  
  69
  - Change in IPL at Acceptance of Interrupt Request
    71
  - Storing Registers
    72
- Return from Interrupt Routine
  
  73
- Multiple Interrupts
  
  73
- External Interrupts (INT
  
  75
  - Function of INT
    78
  - I Interrupt Request Bit
    78
  - Switch of Occurrence Factor of INT
    80
  - I Interrupt Request
    80
Chapter 5 . Timer a

82
- Overview
  
  82
- Block Description
  
  82
- Timer Mode
  
  90
  - Setting for Timer Mode
    92
  - Count Source
    94
  - Operation in Timer Mode
    95
  - Select Function
    96
- Event Counter Mode
  
  100
  - Setting for Event Counter Mode
    103
  - Operation in Event Counter Mode
    105
  - Select Functions
    107
- One-Shot Pulse Mode
  
  111
  - Setting for One-Shot Pulse Mode
    113
  - Count Source
    115
  - Trigger
    116
  - Operation in One-Shot Pulse Mode
    117
- Pulse Width Modulation (PWM) Mode
  
  120
  - Setting for PWM Mode
    122
  - Count Source
    124
  - Trigger
    124
  - Operation in PWM Mode
    125
Chapter 6 . Timer B

130
- Overview
  
  130
- Block Description
  
  130
  - Counter and Reload Register (Timer Bi Register)
    132
  - Count Start Register
    133
  - Timer Bi Mode Register
    134
  - Timer Bi Interrupt Control Register
    135
  - Port P6 Direction Register
    136
- Timer Mode
  
  137
  - Setting for Timer Mode
    139
  - Count Source
    140
  - Operation in Timer Mode
    141
- Event Counter Mode
  
  143
  - Setting for Event Counter Mode
    145
  - Operation in Event Counter Mode
    146
- Pulse Period/Pulse Width Measurement Mode
  
  148
Chapter 7 . Serial I/O

158
- Overview
  
  158
- Block Description
  
  158
- Clock Synchronous Serial I/O Mode
  
  174
  - Transfer Clock (Synchronizing Clock)
    175
  - Transfer Data Format
    176
  - Method of Transmission
    177
  - Transmit Operation
    181
  - Method of Reception
    183
  - Receive Operation
    187
  - Process on Detecting Overrun Error
    190
- Clock Asynchronous Serial I/O (UART) Mode
  
  192
  - Transfer Rate (Frequency of Transfer Clock)
    193
  - Transfer Data Format
    195
  - Method of Transmission
    197
  - Transmit Operation
    201
  - Method of Reception
    203
  - Receive Operation
    206
  - Process on Detecting Error
    208
  - Sleep Mode
    209
Chapter 8 . A-D Converter

210
- Overview
  
  210
- Block Description
  
  210
  - A-D Control Register 0
    212
  - A-D Control Register 1
    213
  - A-D Control Register 1
    215
  - A-D Register I (I = 0 to 7)
    216
  - A-D Conversion Interrupt Control Register
    217
  - Port P7 Direction Register
    218
- A-D Conversion Method (Successive Approximation Conversion Method)
  
  219
- Absolute Accuracy and Differential Non-Linearity Error
  
  222
  - Absolute Accuracy
    222
  - Differential Non-Linearity Error
    223
- Comparison Voltage in 8-Bit Mode
  
  224
- One-Shot Mode
  
  225
  - Settings for One-Shot Mode
    225
  - One-Shot Mode Operation Description
    227
- Repeat Mode
  
  229
  - Settings for Repeat Mode
    229
  - Repeat Mode Operation Description
    231
- Single Sweep Mode
  
  232
  - Settings for Single Sweep Mode
    232
  - Single Sweep Mode Operation Description
    234
- Repeat Sweep Mode 0
  
  236
  - Settings for Repeat Sweep Mode 0
    236
  - Repeat Sweep Mode 0 Operation Description
    238
- Repeat Sweep Mode 1
  
  238
  - Settings for Repeat Sweep Mode 1
    240
  - Repeat Sweep Mode 1 Operation Description
    243
Chapter 9 . Watchdog Timer

246
- Block Description
  
  246
  - Watchdog Timer
    246
  - Watchdog Timer Frequency Select Register
    249
- Operation Description
  
  250
  - Basic Operation
    250
  - Operation in Stop Mode
    252
  - Operation in Hold State
    252
- Precautions When Using Watchdog Timer
  
  253
Chapter 10. Stop Mode

254
- Clock Generating Circuit
  
  254
- Operation Description
  
  256
  - Termination by Interrupt Request Occurrence
    257
  - Termination by Hardware Reset
    258
- Precautions for Stop Mode
  
  259
Chapter 11. Wait Mode

260
- Clock Generating Circuit
  
  260
- Operation Description
  
  260
  - Termination by Interrupt Request Occurrence
    263
  - Termination by Hardware Reset
    263
- Precautions for Wait Mode
  
  264
Chapter 12 . Connection with External Devices

266
- Signals Required for Accessing External Devices
  
  266
  - Descriptions of Signals
    267
  - Operation of Bus Interface Unit (BIU)
    273
- Bus Cycle
  
  276
- Ready Function
  
  279
  - Operation Description
    280
- Hold Function
  
  283
  - Operation Description
    284
Chapter 13. Reset

290
- Hardware Reset
  
  290
- Software Reset
  
  301
Chapter 14 . Clock Generating Circuit

302
- Oscillation Circuit Example
  
  302
  - Connection Example Using Resonator/Oscillator
    303
  - Input Example of Externally Generated Clock
    303
- Clock
  
  304
  - Clock Generated in Clock Generating Circuit
    305
  - Operation Clock for Internal Peripheral Devices
    306
Chapter 15. Electrical Characteristics

308
- Absolute Maximum Ratings
  
  308
- Electrical Characteristics
  
  309
- A-D Converter Characteristics
  
  312
- Internal Peripheral Devices
  
  315
- Ready and Hold
  
  320
- Single-Chip Mode
  
  323
- Memory Expansion Mode and Microprocessor Mode : When 2- Φ Access in
  
  325
- Memory Expansion Mode and Microprocessor Mode : When 3- Φ Access in
  
  330
- Memory Expansion Mode and Microprocessor Mode : When 4- Φ Access in
  
  335
  - High-Speed Running
    340
  - High-Speed Running
    345
- Memory Expansion Mode and Microprocessor Mode : When 5- Φ Access in
  
  350
  - High-Speed Running (Internal RAM Access)
    355
- Testing Circuit for Ports P0 to P8, Φ
  
  358
  - And E
    358
Chapter 16. Standard Characteristics

360
- Standard Characteristics
  
  360
Chapter 17. Applications

366
- Memory Expansion
  
  366
  - Memory Expansion Model
    367
  - How to Calculate Timing
    369
  - Points in Memory Expansion
    373
  - Example of Memory Expansion
    391
  - Example of I/O Expansion
    402
Chapter 18. Prom Version

406
- EPROM Mode
  
  406
- Usage Precaution
  
  415
Chapter 19. Flash Memory Version

418
- Parallel Input/Output Mode
  
  418
  - Pin Description
    421
  - Access to Built–In Flash Memory
    422
  - Read–Only Mode
    424
  - Read/Write (Software Command Control) Mode
    426
  - Electrical Characteristics
    435
  - Program/Erase Algorithm Flow Chart
    437
- Serial Input/Output Mode
  
  438
  - Pin Description
    438
  - Access to Built-In Flash Memory
    440
  - Electrical Characteristics
    448
  - Program Algorithm Flow Chart
    450
Appendix

452
- Appendix 1. Memory Assignment
  
  452
- Appendix 2. Memory Assignment in SFR Area
  
  452
- Appendix 3. Control Registers
  
  452
- Appendix 4. Package Outlines
  
  452
  - Interrupt Control Register
    482
- Appendix 5. Example for Processing Unused Pins
  
  485
- Appendix 6. Hexadecimal Instruction Code Table
  
  488
- Appendix 7. Machine Instructions
  
  491
- Appendix 8. Examples of Noise Immunity Improvement
  
  512
- Appendix 9. Q & a
  
  522

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Renesas 7751 SERIES Manuals

Renesas 7751 SERIES User Manual (540 pages)

Table of Contents

Chapter 1 . Description

Performance Overview

Pin Configuration

Pin Description

Block Diagram

Chapter 2. Central Processing Unit (Cpu)

Bus Interface Unit

Access Space

Memory Assignment

Processor Modes

Chapter 3 INPUT/OUTPUT PINS

Programmable I/O Ports

I/O Pins of Internal Peripheral Devices

Chapter 4. Interrupts

Overview

Interrupt Sources

Interrupt Control

Interrupt Priority Level

Interrupt Priority Level Detection Circuit

Interrupt Priority Level Detection Time

Sequence from Acceptance of Interrupt Request to Execution of Interrupt Routine

Return from Interrupt Routine

Multiple Interrupts

External Interrupts (INT

Chapter 5 . Timer a

Overview

Block Description

Timer Mode

Event Counter Mode

One-Shot Pulse Mode

Pulse Width Modulation (PWM) Mode

Chapter 6 . Timer B

Overview

Block Description

Timer Mode

Event Counter Mode

Pulse Period/Pulse Width Measurement Mode

Chapter 7 . Serial I/O

Overview

Block Description

Clock Synchronous Serial I/O Mode

Clock Asynchronous Serial I/O (UART) Mode

Chapter 8 . A-D Converter

Overview

Block Description

A-D Conversion Method (Successive Approximation Conversion Method)

Absolute Accuracy and Differential Non-Linearity Error

Comparison Voltage in 8-Bit Mode

One-Shot Mode

Repeat Mode

Single Sweep Mode

Repeat Sweep Mode 0

Repeat Sweep Mode 1

Chapter 9 . Watchdog Timer

Block Description

Operation Description

Precautions When Using Watchdog Timer

Chapter 10. Stop Mode

Clock Generating Circuit

Operation Description

Precautions for Stop Mode

Chapter 11. Wait Mode

Clock Generating Circuit

Operation Description

Precautions for Wait Mode

Chapter 12 . Connection with External Devices

Signals Required for Accessing External Devices

Bus Cycle

Ready Function

Hold Function

Chapter 13. Reset

Hardware Reset

Software Reset

Chapter 14 . Clock Generating Circuit

Oscillation Circuit Example

Clock

Chapter 15. Electrical Characteristics