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Renesas R7F0C31042ESN User Manual (465 pages)

8-Bit Single-Chip Microcontrollers

Brand: Renesas | Category: Microcontrollers | Size: 3 MB

Notes for Cmos Devices
3
Table of Contents
8
Chapter 1 Outline
14
Features
14
List of Part Numbers
16
Pin Configuration (Top View)
17
16-Pin Products
17
20-Pin Products
18
Block Diagram
19
16-Pin Products
19
20-Pin Products
20
Outline of Functions
21
16-Pin Products
21
20-Pin Products
22
Chapter 2 Pin Functions
23
Pin Function List
23
16-Pin Products
23
20-Pin Products
26
Description of Pin Functions
28
P20 to P27 (Port 2)
28
P30 to P34 (Port 3)
29
P121, P122, P125 (Port 12)
30
Av Ref , VDD , Vss
31
Regc
31
Pin I/O Circuits and Recommended Connection of Unused Pins
33
Chapter 3 Cpu Architecture
37
Memory Space
37
Internal Program Memory Space
41
Internal Data Memory Space
43
Special Function Register (SFR) Area
43
Data Memory Addressing
44
Processor Registers
47
Control Registers
47
General-Purpose Registers
51
Special Function Registers (Sfrs)
52
Instruction Address Addressing
57
Relative Addressing
57
Immediate Addressing
58
Register Addressing
60
Operand Address Addressing
60
Implied Addressing
60
Register Addressing
61
Direct Addressing
62
Short Direct Addressing
63
Special Function Register (SFR) Addressing
64
Register Indirect Addressing
65
Based Addressing
66
Based Indexed Addressing
67
Stack Addressing
68
Chapter 4 Port Functions
69
Port Functions
69
Port Configuration
71
Port 2
72
Port 3
87
Port 12
95
Registers Controlling Port Function
100
Port Function Operations
107
Writing to I/O Port
107
Reading from I/O Port
107
Operations on I/O Port
107
Settings of Port Mode Register and Output Latch When Using Alternate Function
108
Cautions on 1-Bit Manipulation Instruction for Port Register N (Pn)
112
Chapter 5 Clock Generator
113
Functions of Clock Generator
113
Configuration of Clock Generator
114
Registers Controlling Clock Generator
116
System Clock Oscillator
124
X1 Oscillator
124
Internal High-Speed Oscillator
126
Internal Low-Speed Oscillator
126
Prescaler
126
Clock Generator Operation
127
Controlling Clock
130
Example of Controlling High-Speed System Clock
130
Example of Controlling Internal High-Speed Oscillation Clock
133
Example of Controlling Internal Low-Speed Oscillation Clock
136
Clocks Supplied to CPU and Peripheral Hardware
137
CPU Clock Status Transition Diagram
138
Condition before Changing CPU Clock and Processing after Changing CPU Clock
141
Time Required for Switchover of Main System Clock
142
Conditions before Clock Oscillation Is Stopped
143
Peripheral Hardware and Source Clocks
143
Chapter 6 16-Bit Timer/Event Counter 00
144
Functions of 16-Bit Timer/Event Counter 00
144
Configuration of 16-Bit Timer/Event Counter 00
145
Registers Controlling 16-Bit Timer/Event Counter 00
153
Operation of 16-Bit Timer/Event Counter 00
162
Interval Timer Operation
162
Square-Wave Output Operation
165
External Event Counter Operation
168
Operation in Clear & Start Mode Entered by TI000 Pin Valid Edge Input
172
Free-Running Timer Operation
185
PPG Output Operation
194
One-Shot Pulse Output Operation
198
Pulse Width Measurement Operation
203
Special Use of TM00
211
Rewriting CR010 During TM00 Operation
211
Setting LVS00 and LVR00
211
Cautions for 16-Bit Timer/Event Counter 00
213
Chapter 7 8-Bit Timer/Event Counter 51
218
Functions of 8-Bit Timer/Event Counter 51
218
Configuration of 8-Bit Timer/Event Counter 51
219
Registers Controlling 8-Bit Timer/Event Counter 51
221
Operations of 8-Bit Timer/Event Counter 51
223
Operation as Interval Timer
223
Operation as External Event Counter
225
Square-Wave Output Operation
226
PWM Output Operation
227
Cautions for 8-Bit Timer/Event Counter 51
231
Chapter 8 8-Bit Timer H1
232
Functions of 8-Bit Timer H1
232
Configuration of 8-Bit Timer H1
232
Registers Controlling 8-Bit Timer H1
235
Operation of 8-Bit Timer H1
239
Operation as Interval Timer/Square-Wave Output
239
Operation as PWM Output
242
Carrier Generator Operation
248
Chapter 9 Watchdog Timer
255
Functions of Watchdog Timer
255
Configuration of Watchdog Timer
256
Register Controlling Watchdog Timer
257
Operation of Watchdog Timer
258
Controlling Operation of Watchdog Timer
258
Setting Overflow Time of Watchdog Timer
259
Setting Window Open Period of Watchdog Timer
260
Chapter 10 A/D Converter
262
Function of A/D Converter
262
Configuration of A/D Converter
264
Registers Used in A/D Converter
266
A/D Converter Operations
276
Basic Operations of A/D Converter
276
Input Voltage and Conversion Results
278
A/D Converter Operation Mode
279
How to Read A/D Converter Characteristics Table
281
Cautions for A/D Converter
283
Chapter 11 Operational Amplifiers
287
Function of Operational Amplifier
287
Configuration of Operational Amplifier
288
Registers Used in Operational Amplifier
290
Operational Amplifier Operations
297
Chapter 12 Comparator
298
Features of Comparator
298
Configuration of Comparator
300
Registers Controlling Comparator
301
Operation of Comparator
305
Starting Comparator Operation (Using Internal Reference Voltage for Comparator Reference Voltage)
305
Starting Comparator Operation (Using Input Voltage from CMPCOM Pin for Comparator Reference Voltage)
306
Stopping Comparator Operation
306
Chapter 13 Serial Interface Uart0
307
Functions of Serial Interface UART0
307
Configuration of Serial Interface UART0
308
Registers Controlling Serial Interface UART0
312
Operation of Serial Interface UART0
317
Operation Stop Mode
317
Asynchronous Serial Interface (UART) Mode
318
Dedicated Baud Rate Generator
325
Calculation of Baud Rate
326
Chapter 14 Interrupt Functions
330
Interrupt Function Types
330
Interrupt Sources and Configuration
330
Registers Controlling Interrupt Functions
335
Interrupt Servicing Operations
342
Maskable Interrupt Acknowledgment
342
Software Interrupt Request Acknowledgment
345
Multiple Interrupt Servicing
345
Interrupt Request Hold
348
Chapter 15 Standby Function
349
Standby Function and Configuration
349
Standby Function
349
Registers Controlling Standby Function
350
Standby Function Operation
353
HALT Mode
353
STOP Mode
357
Chapter 16 Reset Function
364
Register for Confirming Reset Source
372
Chapter 17 Power-On-Clear Circuit
373
Functions of Power-On-Clear Circuit
373
Configuration of Power-On-Clear Circuit
374
Operation of Power-On-Clear Circuit
374
Cautions for Power-On-Clear Circuit
377
Chapter 18 Low-Voltage Detector
379
Functions of Low-Voltage Detector
379
Configuration of Low-Voltage Detector
380
Registers Controlling Low-Voltage Detector
381
Operation of Low-Voltage Detector
384
When Used as Reset
385
When Used as Interrupt
388
Cautions for Low-Voltage Detector
391
Chapter 19 Regulator
394
Regulator Overview
394
Chapter 20 Option Byte
395
Functions of Option Bytes
395
Format of Option Byte
396
Chapter 21 Flash Memory
401
Internal Memory Size Switching Register
401
Writing with Flash Memory Programmer
402
Programming Environment
403
Connection of Pins on Board
404
TOOL Pins
404
RESET Pin
405
Port Pins
405
REGC Pin
405
Other Signal Pins
405
Power Supply
405
On-Board Writing When Connecting Crystal/Ceramic Resonator
406
Programming Method
407
Controlling Flash Memory
407
Flash Memory Programming Mode
407
Communication Commands
407
Security Settings
409
Flash Memory Programming by Self Programming
411
Register Controlling Self Programming Mode
412
Flow of Self Programming (Rewriting Flash Memory)
412
Boot Swap Function
414
Chapter 22 On-Chip Debug Function
416
Connecting QB-MINI2 to R7F0C30X, R7F0C31X
416
On-Chip Debug Security ID
419
Securing of User Resources
420
Chapter 23 Instruction Set
421
Conventions Used in Operation List
421
Operand Identifiers and Specification Methods
421
Description of Operation Column
422
Description of Flag Operation Column
422
Operation List
423
Instructions Listed by Addressing Type
431
Chapter 24 Electrical Specifications
434
Absolute Maximum Ratings
435
Flash Memory Programming Characteristics
454
Chapter 25 Package Drawings
455
16-Pin Products
455
20-Pin Products
457
Chapter 26 Cautions for Wait
459
Cautions for Wait
459
Peripheral Hardware that Generates Wait
460
Appendix A Revision History
461
Major Revisions in this Edition
461
Revision History of Preceding Editions
462
Sales Offices
464

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