Renesas RL78/G13 User manual

User’s Manual
All information contained in these materials, including products and product specifications,
represents information on the product at the time of publication and is subject to change by
Renesas Electronics Corp. without notice. Please review the latest information published by
Renesas Electronics Corp. through various means, including the Renesas Electronics Corp.
website (http://www.renesas.com).
RL78/G13
User’s Manual: Hardware
Rev.2.00 Feb 2012
16
16-Bit Single-Chip Microcontrollers
www.renesas.com

Notice
1. All information included in this document is current as of the date this document is issued. Such information, however, is
subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please
confirm the latest product information with a Renesas Electronics sales office. Also, please pay regular and careful attention to
additional and different information to be disclosed by Renesas Electronics such as that disclosed through our website.
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of third parties by or arising from the use of Renesas Electronics products or technical information described in this document.
No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights
of Renesas Electronics or others.
3. You should not alter, modify, copy, or otherwise misappropriate any Renesas Electronics product, whether in whole or in part.
4. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of
semiconductor products and application examples. You are fully responsible for the incorporation of these circuits, software,
and information in the design of your equipment. Renesas Electronics assumes no responsibility for any losses incurred by
you or third parties arising from the use of these circuits, software, or information.
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does not warrant that such information is error free. Renesas Electronics assumes no liability whatsoever for any damages
incurred by you resulting from errors in or omissions from the information included herein.
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written consent of Renesas Electronics. Further, you may not use any Renesas Electronics product for any application for
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equipment; home electronic appliances; machine tools; personal electronic equipment; and industrial robots.
“High Quality”: Transportation equipment (automobiles, trains, ships, etc.); traffic control systems; anti-disaster systems; anti-
crime systems; safety equipment; and medical equipment not specifically designed for life support.
“Specific”: Aircraft; aerospace equipment; submersible repeaters; nuclear reactor control systems; medical equipment or
systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare
intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life.
8. You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics,
especially with respect to the maximum rating, operating supply voltage range, movement power voltage range, heat radiation
characteristics, installation and other product characteristics. Renesas Electronics shall have no liability for malfunctions or
damages arising out of the use of Renesas Electronics products beyond such specified ranges.
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specific characteristics such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Further,
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control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because
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(Note 2) “Renesas Electronics product(s)” means any product developed or manufactured by or for Renesas Electronics.

NOTES FOR CMOS DEVICES
(1) VOLTAGE APPLICATION WAVEFORM AT INPUT PIN: Waveform distortion due to input noise or a
reflected wave may cause malfunction. If the input of the CMOS device stays in the area between VIL
(MAX) and VIH (MIN) due to noise, etc., the device may malfunction. Take care to prevent chattering noise
from entering the device when the input level is fixed, and also in the transition period when the input level
passes through the area between VIL (MAX) and VIH (MIN).
(2) HANDLING OF UNUSED INPUT PINS: Unconnected CMOS device inputs can be cause of malfunction. If
an input pin is unconnected, it is possible that an internal input level may be generated due to noise, etc.,
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of
CMOS devices must be fixed high or low by using pull-up or pull-down circuitry. Each unused pin should be
connected to VDD or GND via a resistor if there is a possibility that it will be an output pin. All handling
related to unused pins must be judged separately for each device and according to related specifications
governing the device.
(3) PRECAUTION AGAINST ESD: A strong electric field, when exposed to a MOS device, can cause
destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop
generation of static electricity as much as possible, and quickly dissipate it when it has occurred.
Environmental control must be adequate. When it is dry, a humidifier should be used. It is recommended
to avoid using insulators that easily build up static electricity. Semiconductor devices must be stored and
transported in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work benches and floors should be grounded. The operator should be grounded using a wrist
strap. Semiconductor devices must not be touched with bare hands. Similar precautions need to be taken
for PW boards with mounted semiconductor devices.
(4) STATUS BEFORE INITIALIZATION: Power-on does not necessarily define the initial status of a MOS
device. Immediately after the power source is turned ON, devices with reset functions have not yet been
initialized. Hence, power-on does not guarantee output pin levels, I/O settings or contents of registers. A
device is not initialized until the reset signal is received. A reset operation must be executed immediately
after power-on for devices with reset functions.
(5) POWER ON/OFF SEQUENCE: In the case of a device that uses different power supplies for the internal
operation and external interface, as a rule, switch on the external power supply after switching on the internal
power supply. When switching the power supply off, as a rule, switch off the external power supply and then
the internal power supply. Use of the reverse power on/off sequences may result in the application of an
overvoltage to the internal elements of the device, causing malfunction and degradation of internal elements
due to the passage of an abnormal current. The correct power on/off sequence must be judged separately
for each device and according to related specifications governing the device.
(6) INPUT OF SIGNAL DURING POWER OFF STATE : Do not input signals or an I/O pull-up power supply
while the device is not powered. The current injection that results from input of such a signal or I/O pull-up
power supply may cause malfunction and the abnormal current that passes in the device at this time may
cause degradation of internal elements. Input of signals during the power off state must be judged
separately for each device and according to related specifications governing the device.

How to Use This Manual
Readers This manual is intended for user engineers who wish to understand the functions of the
RL78/G13 and design and develop application systems and programs for these devices.
The target products are as follows.
•20-pin: R5F1006x (x = A, C, D, E)
R5F1016x (x = A, C, D, E)
•24-pin: R5F1007x (x = A, C, D, E)
R5F1017x (x = A, C, D, E)
•25-pin: R5F1008x (x = A, C, D, E)
R5F1018x (x = A, C, D, E)
•30-pin: R5F100Ax (x = A, C, D, E, F, G)
R5F101Ax (x = A, C, D, E, F, G)
•32-pin: R5F100Bx (x = A, C, D, E, F, G)
R5F101Bx (x = A, C, D, E, F, G)
•36-pin: R5F100Cx (x = A, C, D, E, F, G)
R5F101Cx (x = A, C, D, E, F, G)
•40-pin: R5F100Ex (x = A, C, D, E, F, G, H)
R5F101Ex (x = A, C, D, E, F, G, H)
•44-pin: R5F100Fx (x = A, C, D, E, F, G, H, J, K, L)
R5F101Fx (x = A, C, D, E, F, G, H, J, K, L)
•48-pin: R5F100Gx (x = A, C, D, E, F, G, H, J, K, L)
R5F101Gx (x = A, C, D, E, F, G, H, J, K, L)
•52-pin: R5F100Jx (x = C, D, E, F, G, H, J, K, L)
R5F101Jx (x = C, D, E, F, G, H, J, K, L)
•64-pin: R5F100Lx (x = C, D, E, F, G, H, J, K, L)
R5F101Lx (x = C, D, E, F, G, H, J, K, L)
•80-pin: R5F100Mx (x = F, G, H, J, K, L)
R5F101Mx (x = F, G, H, J, K, L)
•100-pin: R5F100Px (x = F, G, H, J, K, L)
R5F101Px (x = F, G, H, J, K, L)
•128-pin: R5F100Sx (x = H, J, K, L)
R5F101Sx (x = H, J, K, L)
Purpose This manual is intended to give users an understanding of the functions described in the
Organization below.
Organization The RL78/G13 manual is separated into two parts: this manual and the instructions edition
(common to the RL78 Microcontroller).
RL78/G13
User’s Manual
(This Manual)
RL78 Microcontroller
User’s Manual
Instructions
•Pin functions
•Internal block functions
•Interrupts
•Other on-chip peripheral functions
•Electrical specifications
•CPU functions
•Instruction set
•Explanation of each instruction
How to Read This Manual It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
•To gain a general understanding of functions:
→Read this manual in the order of the CONTENTS. The mark “<R>” shows major
revised points. The revised points can be easily searched by copying an “<R>” in the
PDF file and specifying it in the “Find what:” field.
•How to interpret the register format:
→For a bit number enclosed in angle brackets, the bit name is defined as a reserved
word in the assembler, and is defined as an sfr variable using the #pragma sfr
directive in the compiler.

•To know details of the RL78 Microcontroller instructions:
→Refer to the separate document RL78 Microcontroller Instructions User’s Manual
(R01US0015E).
Conventions Data significance: Higher digits on the left and lower digits on the right
Active low representations: ××× (overscore over pin and signal name)
Note: Footnote for item marked with Note in the text
Caution: Information requiring particular attention
Remark: Supplementary information
Numerical representations: Binary
...×××× or ××××B
Decimal
...××××
Hexadecimal
...××××H
Related Documents The related documents indicated in this publication may include preliminary versions.
However, preliminary versions are not marked as such.
Documents Related to Devices
Document Name Document No.
RL78/G13 User’s Manual Hardware This manual
RL78 Microcontroller Instructions User’s Manual R01US0015E
Documents Related to Flash Memory Programming
Document Name Document No.
PG-FP5 Flash Memory Programmer User’s Manual R20UT0008E
Caution The related documents listed above are subject to change without notice. Be sure to use the latest
version of each document when designing.

Other Documents
Document Name Document No.
RENESAS MICROCOMPUTER GENERAL CATALOG R01CS0001E
Semiconductor Package Mount Manual Note
Quality Grades on NEC Semiconductor Devices C11531E
NEC Semiconductor Device Reliability/Quality Control System C10983E
Guide to Prevent Damage for Semiconductor Devices by Electrostatic Discharge (ESD) C11892E
Note See the “Semiconductor Package Mount Manual” website (http://www.renesas.com/products/package/manual/index.jsp).
Caution The related documents listed above are subject to change without notice. Be sure to use the latest
version of each document when designing.
All trademarks and registered trademarks are the property of their respective owners.
EEPROM is a trademark of Renesas Electronics Corporation.
SuperFlash is a registered trademark of Silicon Storage Technology, Inc. in several countries including the United States
and Japan.
Caution: This product uses SuperFlash®technology licensed from Silicon Storage Technology, Inc.

Index-1
CONTENTS
CHAPTER 1 OUTLINE............................................................................................................................... 1
1.1 Features........................................................................................................................................... 1
1.2 Ordering Information...................................................................................................................... 3
1.3 Pin Configuration (Top View) ........................................................................................................ 8
1.3.1 20-pin products................................................................................................................................... 8
1.3.2 24-pin products................................................................................................................................... 9
1.3.3 25-pin products................................................................................................................................. 10
1.3.4 30-pin products................................................................................................................................. 11
1.3.5 32-pin products................................................................................................................................. 12
1.3.6 36-pin products................................................................................................................................. 13
1.3.7 40-pin products................................................................................................................................. 14
1.3.8 44-pin products................................................................................................................................. 15
1.3.9 48-pin products................................................................................................................................. 16
1.3.10 52-pin products............................................................................................................................... 18
1.3.11 64-pin products............................................................................................................................... 19
1.3.12 80-pin products............................................................................................................................... 21
1.3.13 100-pin products............................................................................................................................. 22
1.3.14 128-pin products............................................................................................................................. 24
1.4 Pin Identification........................................................................................................................... 25
1.5 Block Diagram .............................................................................................................................. 26
1.5.1 20-pin products................................................................................................................................. 26
1.5.2 24-pin products................................................................................................................................. 27
1.5.3 25-pin products................................................................................................................................. 28
1.5.4 30-pin products................................................................................................................................. 29
1.5.5 32-pin products................................................................................................................................. 30
1.5.6 36-pin products................................................................................................................................. 31
1.5.7 40-pin products................................................................................................................................. 32
1.5.8 44-pin products................................................................................................................................. 33
1.5.9 48-pin products................................................................................................................................. 34
1.5.10 52-pin products............................................................................................................................... 35
1.5.11 64-pin products............................................................................................................................... 36
1.5.12 80-pin products............................................................................................................................... 37
1.5.13 100-pin products............................................................................................................................. 38
1.5.14 128-pin products............................................................................................................................. 39
1.6 Outline of Functions..................................................................................................................... 40

Index-2
CHAPTER 2 PIN FUNCTIONS ............................................................................................................... 46
2.1 Port Function ................................................................................................................................ 46
2.1.1 20-pin products................................................................................................................................. 47
2.1.2 24-pin products................................................................................................................................. 48
2.1.3 25-pin products................................................................................................................................. 49
2.1.4 30-pin products................................................................................................................................. 50
2.1.5 32-pin products................................................................................................................................. 52
2.1.6 36-pin products................................................................................................................................. 54
2.1.7 40-pin products................................................................................................................................. 56
2.1.8 44-pin products................................................................................................................................. 58
2.1.9 48-pin products................................................................................................................................. 60
2.1.10 52-pin products............................................................................................................................... 62
2.1.11 64-pin products............................................................................................................................... 64
2.1.12 80-pin products............................................................................................................................... 66
2.1.13 100-pin products............................................................................................................................. 69
2.1.14 128-pin products............................................................................................................................. 72
2.2 Functions other than port pins ................................................................................................... 76
2.2.1 With functions for each product ........................................................................................................ 76
2.2.2 Pins for each product (pins other than port pins).............................................................................. 81
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins ........................................... 83
CHAPTER 3 CPU ARCHITECTURE ...................................................................................................... 89
3.1 Memory Space .............................................................................................................................. 89
3.1.1 Internal program memory space..................................................................................................... 105
3.1.2 Mirror area...................................................................................................................................... 108
3.1.3 Internal data memory space........................................................................................................... 110
3.1.4 Special function register (SFR) area .............................................................................................. 111
3.1.5 Extended special function register (2nd SFR: 2nd Special Function Register) area ..................... 111
3.1.6 Data memory addressing ............................................................................................................... 112
3.2 Processor Registers................................................................................................................... 122
3.2.1 Control registers ............................................................................................................................. 122
3.2.2 General-purpose registers.............................................................................................................. 124
3.2.3 ES and CS registers....................................................................................................................... 126
3.2.4 Special function registers (SFRs) ................................................................................................... 127
3.2.5 Extended special function registers (2nd SFRs: 2nd Special Function Registers) ......................... 133
3.3 Instruction Address Addressing............................................................................................... 142
3.3.1 Relative addressing........................................................................................................................ 142
3.3.2 Immediate addressing .................................................................................................................... 142
3.3.3 Table indirect addressing ............................................................................................................... 143
3.3.4 Register direct addressing.............................................................................................................. 144

Index-3
3.4 Addressing for Processing Data Addresses ........................................................................... 145
3.4.1 Implied addressing ......................................................................................................................... 145
3.4.2 Register addressing ....................................................................................................................... 145
3.4.3 Direct addressing ........................................................................................................................... 146
3.4.4 Short direct addressing .................................................................................................................. 147
3.4.5 SFR addressing.............................................................................................................................. 148
3.4.6 Register indirect addressing ........................................................................................................... 149
3.4.7 Based addressing........................................................................................................................... 150
3.4.8 Based indexed addressing ............................................................................................................. 153
3.4.9 Stack addressing............................................................................................................................ 154
CHAPTER 4 PORT FUNCTIONS ......................................................................................................... 155
4.1 Port Functions ............................................................................................................................ 155
4.2 Port Configuration...................................................................................................................... 156
4.2.1 Port 0.............................................................................................................................................. 158
4.2.2 Port 1.............................................................................................................................................. 166
4.2.3 Port 2.............................................................................................................................................. 174
4.2.4 Port 3.............................................................................................................................................. 176
4.2.5 Port 4.............................................................................................................................................. 181
4.2.6 Port 5.............................................................................................................................................. 190
4.2.7 Port 6.............................................................................................................................................. 198
4.2.8 Port 7.............................................................................................................................................. 201
4.2.9 Port 8.............................................................................................................................................. 208
4.2.10 Port 9............................................................................................................................................ 213
4.2.11 Port 10.......................................................................................................................................... 218
4.2.12 Port 11.......................................................................................................................................... 222
4.2.13 Port 12.......................................................................................................................................... 226
4.2.14 Port 13.......................................................................................................................................... 231
4.2.15 Port 14.......................................................................................................................................... 233
4.2.16 Port 15.......................................................................................................................................... 240
4.3 Registers Controlling Port Function ........................................................................................ 242
4.4 Port Function Operations .......................................................................................................... 261
4.4.1 Writing to I/O port ........................................................................................................................... 261
4.4.2 Reading from I/O port..................................................................................................................... 261
4.4.3 Operations on I/O port.................................................................................................................... 261
4.4.4 Connecting to external device with different potential (1.8 V, 2.5 V, 3 V) ....................................... 262
4.5 Settings of Port Related Register When Using Alternate Function ...................................... 264
4.6 Cautions When Using Port Function........................................................................................ 270
4.6.1 Cautions on 1-Bit Manipulation Instruction for Port Register n (Pn) ............................................... 270
4.6.2 Notes on specifying the pin settings ............................................................................................... 271

Index-4
CHAPTER 5 CLOCK GENERATOR .................................................................................................... 272
5.1 Functions of Clock Generator................................................................................................... 272
5.2 Configuration of Clock Generator ............................................................................................ 274
5.3 Registers Controlling Clock Generator.................................................................................... 276
5.4 System Clock Oscillator ............................................................................................................ 291
5.4.1 X1 oscillator.................................................................................................................................... 291
5.4.2 XT1 oscillator.................................................................................................................................. 291
5.4.3 High-speed on-chip oscillator ......................................................................................................... 295
5.4.4 Low-speed on-chip oscillator .......................................................................................................... 295
5.5 Clock Generator Operation ....................................................................................................... 296
5.6 Controlling Clock........................................................................................................................ 298
5.6.1 Example of setting high-speed on-chip oscillator ........................................................................... 298
5.6.2 Example of setting X1 oscillation clock........................................................................................... 299
5.6.3 Example of setting XT1 oscillation clock ........................................................................................ 300
5.6.4 CPU clock status transition diagram............................................................................................... 301
5.6.5 Condition before changing CPU clock and processing after changing CPU clock ......................... 307
5.6.6 Time required for switchover of CPU clock and system clock ........................................................ 309
5.6.7 Conditions before clock oscillation is stopped ................................................................................ 310
5.7 Resonator and Oscillator Constants ........................................................................................ 311
CHAPTER 6 TIMER ARRAY UNIT...................................................................................................... 314
6.1 Functions of Timer Array Unit................................................................................................... 316
6.1.1 Independent channel operation function ........................................................................................ 316
6.1.2 Simultaneous channel operation function....................................................................................... 317
6.1.3 8-bit timer operation function (channels 1 and 3 only).................................................................... 318
6.1.4 LIN-bus supporting function (channel 7 of unit 0 only) ................................................................... 319
6.2 Configuration of Timer Array Unit ............................................................................................ 320
6.3 Registers Controlling Timer Array Unit.................................................................................... 328
6.4 Basic Rules of Timer Array Unit ............................................................................................... 353
6.4.1 Basic rules of simultaneous channel operation function................................................................. 353
6.4.2 Basic rules of 8-bit timer operation function (channels 1 and 3 only) ............................................. 355
6.5 Operation of Counter ................................................................................................................. 356
6.5.1 Count clock (fTCLK) .......................................................................................................................... 356
6.5.2 Start timing of counter .................................................................................................................... 358
6.5.3 Operation of counter....................................................................................................................... 359
6.6 Channel Output (TOmn pin) Control ........................................................................................ 364
6.6.1 TOmn pin output circuit configuration............................................................................................. 364
6.6.2 TOmn Pin Output Setting ............................................................................................................... 365
6.6.3 Cautions on Channel Output Operation ......................................................................................... 366
6.6.4 Collective manipulation of TOmn bit............................................................................................... 371