RENESAS RL78 G15 Fast Prototyping Board User Manual

User Manual for RENESAS models including: RL78, RL78-G15, FPB, RL78 G15 Fast Prototyping Board, G15 Fast Prototyping Board, Fast Prototyping Board, Prototyping Board, Board

RL78/G15 Fast Prototyping Board User's Manual

R12UM0042EJ0100

RL78, RL78/G15, FPB, Fast Prototyping Board

Renesas Electronics Corporation

RL78/G15 Fast Prototyping Board User's Manual

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A700000009966833

User's Manual

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RL78/G15 Fast Prototyping Board
User's Manual

16-Bit Single-Chip Microcontrollers RL78 Family

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).

www.renesas.com

Rev.1.00 Oct 2022

Notice

1. 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 or any other use of the circuits, software, and information in the design of your product or system. Renesas Electronics disclaims any and all liability for any losses and damages incurred by you or third parties arising from the use of these circuits, software, or information.
2. Renesas Electronics hereby expressly disclaims any warranties against and liability for infringement or any other claims involving patents, copyrights, or other intellectual property rights of third parties, by or arising from the use of Renesas Electronics products or technical information described in this document, including but not limited to, the product data, drawings, charts, programs, algorithms, and application examples.
3. No license, express, implied or otherwise, is granted hereby under any patents, copyrights or other intellectual property rights of Renesas Electronics or others.
4. You shall be responsible for determining what licenses are required from any third parties, and obtaining such licenses for the lawful import, export, manufacture, sales, utilization, distribution or other disposal of any products incorporating Renesas Electronics products, if required.
5. You shall not alter, modify, copy, or reverse engineer any Renesas Electronics product, whether in whole or in part. Renesas Electronics disclaims any and all liability for any losses or damages incurred by you or third parties arising from such alteration, modification, copying or reverse engineering.
6. Renesas Electronics products are classified according to the following two quality grades: "Standard" and "High Quality". The intended applications for each Renesas Electronics product depends on the product's quality grade, as indicated below. "Standard": Computers; office equipment; communications equipment; test and measurement equipment; audio and visual equipment; home electronic appliances; machine tools; personal electronic equipment; industrial robots; etc. "High Quality": Transportation equipment (automobiles, trains, ships, etc.); traffic control (traffic lights); large-scale communication equipment; key financial terminal systems; safety control equipment; etc. Unless expressly designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products are not intended or authorized for use in products or systems that may pose a direct threat to human life or bodily injury (artificial life support devices or systems; surgical implantations; etc.), or may cause serious property damage (space system; undersea repeaters; nuclear power control systems; aircraft control systems; key plant systems; military equipment; etc.). Renesas Electronics disclaims any and all liability for any damages or losses incurred by you or any third parties arising from the use of any Renesas Electronics product that is inconsistent with any Renesas Electronics data sheet, user's manual or other Renesas Electronics document.
7. No semiconductor product is absolutely secure. Notwithstanding any security measures or features that may be implemented in Renesas Electronics hardware or software products, Renesas Electronics shall have absolutely no liability arising out of any vulnerability or security breach, including but not limited to any unauthorized access to or use of a Renesas Electronics product or a system that uses a Renesas Electronics product. RENESAS ELECTRONICS DOES NOT WARRANT OR GUARANTEE THAT RENESAS ELECTRONICS PRODUCTS, OR ANY SYSTEMS CREATED USING RENESAS ELECTRONICS PRODUCTS WILL BE INVULNERABLE OR FREE FROM CORRUPTION, ATTACK, VIRUSES, INTERFERENCE, HACKING, DATA LOSS OR THEFT, OR OTHER SECURITY INTRUSION ("Vulnerability Issues"). RENESAS ELECTRONICS DISCLAIMS ANY AND ALL RESPONSIBILITY OR LIABILITY ARISING FROM OR RELATED TO ANY VULNERABILITY ISSUES. FURTHERMORE, TO THE EXTENT PERMITTED BY APPLICABLE LAW, RENESAS ELECTRONICS DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THIS DOCUMENT AND ANY RELATED OR ACCOMPANYING SOFTWARE OR HARDWARE, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
8. When using Renesas Electronics products, refer to the latest product information (data sheets, user's manuals, application notes, "General Notes for Handling and Using Semiconductor Devices" in the reliability handbook, etc.), and ensure that usage conditions are within the ranges specified by Renesas Electronics with respect to maximum ratings, operating power supply voltage range, heat dissipation characteristics, installation, etc. Renesas Electronics disclaims any and all liability for any malfunctions, failure or accident arising out of the use of Renesas Electronics products outside of such specified ranges.
9. Although Renesas Electronics endeavors to improve the quality and reliability of Renesas Electronics products, semiconductor products have specific characteristics, such as the occurrence of failure at a certain rate and malfunctions under certain use conditions. Unless designated as a high reliability product or a product for harsh environments in a Renesas Electronics data sheet or other Renesas Electronics document, Renesas Electronics products are not subject to radiation resistance design. You are responsible for implementing safety measures to guard against the possibility of bodily injury, injury or damage caused by fire, and/or danger to the public in the event of a failure or malfunction of Renesas Electronics products, such as safety design for hardware and software, including but not limited to redundancy, fire control and malfunction prevention, appropriate treatment for aging degradation or any other appropriate measures. Because the evaluation of microcomputer software alone is very difficult and impractical, you are responsible for evaluating the safety of the final products or systems manufactured by you.
10. Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product. You are responsible for carefully and sufficiently investigating applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive, and using Renesas Electronics products in compliance with all these applicable laws and regulations. Renesas Electronics disclaims any and all liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations.
11. Renesas Electronics products and technologies shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. You shall comply with any applicable export control laws and regulations promulgated and administered by the governments of any countries asserting jurisdiction over the parties or transactions.
12. It is the responsibility of the buyer or distributor of Renesas Electronics products, or any other party who distributes, disposes of, or otherwise sells or transfers the product to a third party, to notify such third party in advance of the contents and conditions set forth in this document.
13. This document shall not be reprinted, reproduced or duplicated in any form, in whole or in part, without prior written consent of Renesas Electronics. 14. Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas
Electronics products.
(Note1) "Renesas Electronics" as used in this document means Renesas Electronics Corporation and also includes its directly or indirectly controlled subsidiaries.
(Note2) "Renesas Electronics product(s)" means any product developed or manufactured by or for Renesas Electronics.

Corporate Headquarters
TOYOSU FORESIA, 3-2-24 Toyosu, Koto-ku, Tokyo 135-0061, Japan
www.renesas.com

(Rev.5.0-1 October 2020)
Contact information
For further information on a product, technology, the most up-to-date version of a document, or your nearest sales office, please visit: www.renesas.com/contact/.

Trademarks
Renesas and the Renesas logo are trademarks of Renesas Electronics Corporation. All trademarks and registered trademarks are the property of their respective owners.

General Precautions in the Handling of Microprocessing Unit and Microcontroller Unit Products
The following usage notes are applicable to all Microprocessing unit and Microcontroller unit products from Renesas. For detailed usage notes on the products covered by this document, refer to the relevant sections of the document as well as any technical updates that have been issued for the products.
1. Precaution against Electrostatic Discharge (ESD) A strong electrical field, when exposed to a CMOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop the generation of static electricity as much as possible, and quickly dissipate it when it occurs. Environmental control must be adequate. When it is dry, a humidifier should be used. This is recommended to avoid using insulators that can 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 must be grounded. The operator must also be grounded using a wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions must be taken for printed circuit boards with mounted semiconductor devices.
2. Processing at power-on The state of the product is undefined at the time when power is supplied. The states of internal circuits in the LSI are indeterminate and the states of register settings and pins are undefined at the time when power is supplied. In a finished product where the reset signal is applied to the external reset pin, the states of pins are not guaranteed from the time when power is supplied until the reset process is completed. In a similar way, the states of pins in a product that is reset by an on-chip power-on reset function are not guaranteed from the time when power is supplied until the power reaches the level at which resetting is specified.
3. Input of signal during power-off state Do not input signals or an I/O pull-up power supply while the device is powered off. 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. Follow the guideline for input signal during power-off state as described in your product documentation.
4. Handling of unused pins Handle unused pins in accordance with the directions given under handling of unused pins in the manual. The input pins of CMOS products are generally in the high-impedance state. In operation with an unused pin in the open-circuit state, extra electromagnetic noise is induced in the vicinity of the LSI, an associated shoot-through current flows internally, and malfunctions occur due to the false recognition of the pin state as an input signal become possible.
5. Clock signals After applying a reset, only release the reset line after the operating clock signal becomes stable. When switching the clock signal during program execution, wait until the target clock signal is stabilized. When the clock signal is generated with an external resonator or from an external oscillator during a reset, ensure that the reset line is only released after full stabilization of the clock signal. Additionally, when switching to a clock signal produced with an external resonator or by an external oscillator while program execution is in progress, wait until the target clock signal is stable.
6. 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, for example, 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.).
7. Prohibition of access to reserved addresses Access to reserved addresses is prohibited. The reserved addresses are provided for possible future expansion of functions. Do not access these addresses as the correct operation of the LSI is not guaranteed.
8. Differences between products Before changing from one product to another, for example to a product with a different part number, confirm that the change will not lead to problems. The characteristics of a microprocessing unit or microcontroller unit products in the same group but having a different part number might differ in terms of internal memory capacity, layout pattern, and other factors, which can affect the ranges of electrical characteristics, such as characteristic values, operating margins, immunity to noise, and amount of radiated noise. When changing to a product with a different part number, implement a systemevaluation test for the given product.

How to Use This Manual
1. Purpose and Target Readers
This manual is designed to provide the user with an understanding of the basic specifications and correct usage of this product. The target users are those who will be using it in evaluating MCUs and debugging programs. The target readers of this manual require basic knowledge regarding the facilities of MCUs and debuggers.
Particular attention should be paid to the precautionary notes when using the manual. These notes occur within the body of the text, at the end of each section, and in the Handling Precautions section.

The revision history summarizes the locations of revisions and additions. It does not list all revisions. Refer to the text of the manual for details.

The following documents apply to the RL78/G15 Fast Prototyping Board. Be sure to refer to the latest versions of these documents.

Document Type

Description

User's manual

Hardware specifications

Circuit schematics Circuit schematics

Parts list

User's manual for the hardware
Application note

Hardware specifications of the MCU (pin assignments, memory maps, peripheral function specifications, electrical characteristics, timing charts) and descriptions of operation
Usage of the RL78 debugging functions using the serial port

Document Title
RL78/G15 Fast Prototyping Board User's Manual
RL78/G15 Fast Prototyping Board Circuit Schematics
RL78/G15 Fast Prototyping Board BOM LIST
RL78/G15 User's Manual: Hardware
RL78 Debugging Functions Using the Serial Port

Document No. R12UM0042EJ (this manual) R12TU0169EJ
R12TU0170EJ
R01UH0959EJ
R20AN0632EJ

2. List of Abbreviations and Acronyms

Abbreviation

Full Form

ArduinoTM Uno

Connectors compatible with the ArduinoTM Uno R3 board are mounted on the fast prototyping board.

PmodTM CPU

Peripheral module Central Processing Unit

DIP

Dual In-line Package

DNF

Do Not Fit

Grove IDE

A connector that is compatible with Grove modules can be mounted on the fast prototyping board.
Integrated Development Environment

IRQ

Interrupt Request

HOCO

High-Speed On-Chip Oscillator

LOCO

Low-Speed On-Chip Oscillator

LED

Light Emitting Diode

MCU

Micro-controller Unit

n/a (NA)

Not applicable

n/c (NC)

Not connected

Personal Computer

RAM

Random Access Memory

RFP ROM

Renesas Flash Programmer Read Only Memory

SPI

Serial Peripheral Interface

USB

Universal Serial Bus

TPU

Timer Pulse Unit

UART

Universal Asynchronous Receiver/Transmitter

WDT

Watchdog timer

Proprietary Notice
All text, graphics, photographs, trademarks, logos, artwork, and computer code, collectively known as content, contained in this document is owned, controlled, or licensed by or to Renesas, and is protected by trade dress, copyright, patent and trademark laws, and other intellectual property rights and unfair competition laws. Except as expressly provided herein, no part of this document or content may be copied, reproduced, republished, posted, publicly displayed, encoded, translated, transmitted, or distributed in any other medium for publication or distribution or for any commercial enterprise, without prior written consent from Renesas.
"PmodTM" is the trademark of Digilent Inc. The Pmod Interface Specification is the property of Digilent Inc. For more information on the use of the Pmod trademark, please see our Pmod License Agreement page. Arduino® is a trademark of Arduino SA. Other brands and names mentioned in this document may be the trademarks or registered trademarks of their respective holders.

Table of Contents
1. Overview............................................................................................................................1
1.1 Purpose......................................................................................................................................................1 1.2 Features .....................................................................................................................................................1 1.3 Preparation ................................................................................................................................................1
1.3.1 Installing the e2 studio IDE ...............................................................................................................2 1.3.2 Installing the CS+ IDE ......................................................................................................................2 1.4 Board Specification Table ..........................................................................................................................3 1.5 Block Diagram............................................................................................................................................4
2. Board Layout .....................................................................................................................5
3. Parts Layout ......................................................................................................................6
4. Operating Environment......................................................................................................7
5. User Circuits ......................................................................................................................8
5.1 Evaluation MCU .........................................................................................................................................8 5.2 USB Connector ..........................................................................................................................................8 5.3 Power LED .................................................................................................................................................8 5.4 User LEDs..................................................................................................................................................8 5.5 ArduinoTM Connectors................................................................................................................................9 5.6 MCU Headers ..........................................................................................................................................11 5.7 PmodTM Connector...................................................................................................................................12 5.8 Clock ........................................................................................................................................................14 5.9 Reset Switch ............................................................................................................................................14 5.10 User Switch ..............................................................................................................................................14 5.11 USB-to-Serial Converter ..........................................................................................................................14 5.12 USB-to-Serial Converter Reset Header...................................................................................................15 5.13 Power-Supply Selection Header ..............................................................................................................16 5.14 External Power Supply.............................................................................................................................18 5.15 Current Measurement Header .................................................................................................................19 5.16 Pattern for Cutting the I/O Power Supply for the USB-to-Serial Converter .............................................21 5.17 Emulator Connector .................................................................................................................................21
6. Handling Precautions.......................................................................................................23
6.1 Power to be Supplied...............................................................................................................................23 6.2 Remodeling the Board .............................................................................................................................23 6.3 Power Supplies and Usage Conditions ...................................................................................................24 6.4 Precautions when using P00/TxD0..........................................................................................................25
7. Developing Code .............................................................................................................26
7.1 Using the e2 studio ...................................................................................................................................26 7.2 Using CS+................................................................................................................................................27
8. Additional Information ......................................................................................................28

RL78/G15 Fast Prototyping Board
1. Overview

1. Overview

This user's manual describes the RL78/G15 Fast Prototyping Board (RTK5RLG150C00000BJ) (hereinafter referred to as "this product").
1.1 Purpose
This product is an evaluation tool for a Renesas MCU. This user's manual describes the hardware specifications, ways of setting switches, and the basic setup procedure.
1.2 Features
· Programming of the Renesas MCU · Debugging of user code · User circuits for switches and LEDs · Pmod connector* · Arduino connector*
Note: We do not guarantee connection to all types of these connectors. For details on the connector specifications, refer to the descriptions in this document.
1.3 Preparation
· Watch the video on "Getting Started with Fast Prototyping Board for RL78 Family". https://www.renesas.com/video/getting-started-fast-prototyping-board-rl78-family
· Install the integrated development environment (IDE) and required software on the host PC. https://www.renesas.com/development-tools
· Prepare a micro-USB cable for data transfer. · Refer to the following Web page and prepare the E2 emulator if required.
https://www.renesas.com/e2 · Refer to the following Web page and prepare the E2 emulator Lite if required.
https://www.renesas.com/e2lite

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1. Overview

1.3.1 Installing the e2 studio IDE
For details on the procedure for installation, watch the video on "e2 studio Quick Start Guide Video for RL78 Family - Installation".
https://www.renesas.com/software-tool/rl78-software-tool-course
1. Download the installer for the latest version of the e2 studio from the following Web page. https://www.renesas.com/software-tool/e-studio
2. Unzip the downloaded zip file and run the installer file. 3. Select "RL78" for [Device Families]. 4. Confirm that the latest version of Renesas CCRL has been selected as the compiler. 5. Select the [I accept the terms of the Software Agreements] checkbox and then click on the [Install] button. 6. When the software produces an installer window in the middle of installation, proceed with installation
according to the instructions from the wizard. 7. After installation has finished, click on the [OK] button.

1.3.2 Installing the CS+ IDE
1. Download the installer for the latest version of CS+ for CC from the following Web page. https://www.renesas.com/software-tool/cs
2. Unzip the downloaded zip file and run the installer file. 3. Click on [Begin CS+ Startup]. 4. Confirm that [Tools for RL78 family] has been selected. 5. After installation has finished, click on the [OK] button.

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1. Overview

1.4 Board Specification Table

Table 1-1 shows the board specifications.

Table 1-1 Board Specification Table

Item

Specification

Evaluation MCU (RL78/G15 with 20 pins)

Part No.: R5F12068ASP Package: 20-pin LSSOP On-chip memory: 8-KB ROM, 1-KB RAM, 1-KB data flash memory

Board size

53.34 mm x 68.58 mm

Power-supply voltage

VDD: 2.4 V to 5.5 V

Power-supply circuit*2

USB connector: VBUS (5 V) or 3.3 V (default) External power supply: 2.4 V to 5.5 V

E2 emulator or E2 emulator Lite

Current drawn

Max. 200 mA

Main clock*1

OSC1: Crystal oscillator (surface-mount technology (SMT)) for the main system clock
OSC2: Crystal oscillator or ceramic resonator (lead type) for the main system clock

Sub-clock

Push switches

Reset switch x 1 User switch x 1

LEDs

Power indicator: green x 1 User: green x 2

USB connector

Connector: Micro USB Type-B

ArduinoTM connectors

Connectors: 6 pins x 1, 8 pins x 2, 10 pins x 1 The interfaces are compatible with the ArduinoTM Uno R3 board.

PmodTM connector

Connector: Angle type, 12 pins (2 x 6) x 1

MCU headers*1

Headers: 10 pins x 2

USB-to-serial converter

Used as the interface with the RL78 COM port debug tool. FT232RQ from FTDI x 1

USB-to-serial converter reset header
Current measurement header*1

Header: 2 pins x 1 (open-circuit by default) Header: 2 pins x 1

Power-supply selection header*2 Header: 3 pins x 1

Emulator connector*1

14-pin connector for connecting an E2 emulator or E2 emulator Lite Emulator selection headers: 2 pins x 3

Notes: 1. This part is not mounted.
2. The intended source of power for the evaluation MCU on the board as shipped is VBUS (5 V). Setting a jumper is required if power is to be supplied from other sources. For details, refer to Chapter 5, User Circuits.

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1.5 Block Diagram
Figure 1-1 shows the block diagram of this product.

1. Overview

Power LED

MCU header x 2

ArduinoTM connector

Pmod connector

Powersupply circuit

USB connector

USB-to-serial converter

Evaluation MCU (RL78/G15 with 20 pins)

Main clock Note: Gray shading of blocks indicates parts that are not mounted on the board.

Reset switch User switch User LED x 2

Figure 1-1 Block Diagram

Emulator connector

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2. Board Layout
Figure 2-1 shows the external appearance of the top side of this product.
User LED x 2 User switch Micro-USB connector Power LED
Power-supply selection header

Reset switch
External powersupply pin

Figure 2-1 Board Layout (Top Side)

2. Board Layout
Ten digital pins for Arduino Uno R3 Eight digital pins for Arduino Uno R3
MCU header J1 (1 to 10) RL78/G15 MCU
PMODTM Type 6A
MCU header J2 (11 to 20)
Six analog pins for Arduino Uno R3 Eight power pins for Arduino Uno R3

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3. Parts Layout
Figure 3-1 shows the parts layout of this product.

3. Parts Layout

Figure 3-1 Parts Layout Figure 3-2 shows the external dimensions of this product.

10.16

Figure 3-2 External Dimensions R12UM0042EJ0100 Rev. 1.00 Oct.1.22

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4. Operating Environment

4. Operating Environment

Figure 4-1 shows the operating environment of this product. Install the IDE on the host PC you are using.

Host PC

USB cable RL78/G15 Fast Prototyping Board

Figure 4-1 Operating Environment

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5. User Circuits

5. User Circuits

5.1 Evaluation MCU
The specifications for the power supply, system clock, and reset of the evaluation MCU (RL78/G15) at the time of shipment are as follows.
· Power supply: 5 V (VBUS) supplied from the USB (including the analog power supply) · System clock: Operation with an on-chip oscillator · Reset: Directed by the reset switch or IDE

5.2 USB Connector
The connector shape is micro-USB Type-B. It serves as a power-supply input and an interface for communications with the RL78 COM port debug tool (through USB-to-serial conversion). Connect the USB connector to the host PC by a USB cable. If the power supply on the host side is on, the power is supplied to this product at the same time as connection of the cable.
Note: The package does not include a USB cable. Do not connect a USB cable while the emulator is supplying power.
5.3 Power LED
While the power LED is illuminated, VDD power is being supplied. The LED is green.
5.4 User LEDs
The optional user LEDs can be used for any purpose. LED1 and LED2 are mounted on the board and are respectively connected to the following ports. The LEDs are green.
· LED1: Pin 2, connected to port P20 · LED2: Pin 1, connected to port P21

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5. User Circuits

5.5 ArduinoTM Connectors

The specification of the Arduino connectors is on the assumption that Arduino shields are to be connectable. However, we do not guarantee connection to all types of Arduino shield. Confirm the specifications of this product against any Arduino shield you intend to use.
Figure 5-1 and Table 5-1 show the pin assignments of the Arduino connectors.

Analog

Port

Pin name

Port

PWM

SERIAL

ANI7 ANI8 ANI1 (ANI4) (ANI5) (ANI6)

P23 P22 P02 (P05) (P06) (P07)

VDD

N.C. IOREF RESET
3V3 5V GND GND VIN
A0 A1 A2 A3 A4 A5

SCL SDA AREF GND IO13 IO12 IO11 IO10 IO9 IO8
IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0

P06

SCLA0

P07

SDAA0

P05 (P04) (P03) (P121) (P122) (P40)
P20 (P22) (P23) P21 P41 P137 P03 P04

(TO00) (TO07) (TO05)
(TO06) (TO04)
TO03

SCK00 (SI00) (SO00)
TXD0 RXD0

Short-circuit the short-circuit pads for signals with names enclosed in parentheses, "()". Figure 5-1 Pin Assignments of the Arduino Connectors

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5. User Circuits

Table 5-1 Pin Assignments of the Arduino Connectors

Part No. in Name of

RL78/G15*2 *3

the Circuit Arduino

Schematics Signal*1

Pin Power Port Analog Supply

PWM

Serial

Others

J3-1

N.C.

J3-2

IOREF

VDD

J3-3

RESET

J3-4

3V3

J3-5

J3-6

GND

VSS

J3-7

GND

VSS

J3-8

VIN

J4-1

P23 ANI7

J4-2

P22 ANI8

J4-3

P02 ANI1

J4-4

(16) -

(P05) (ANI4) -

J4-5

(17) -

(P06) (ANI5) -

J4-6

(18) -

(P07) (ANI6) -

J5-1

IO0

P04 -

[RxD0]

J5-2

IO1

P03 -

[TxD0]

J5-3

IO2

P137 -

INTP0

J5-4

IO~3

P41 -

TO03

INTP4

J5-5

IO4

P21 -

J5-6

IO~5

(19) -

(P23) -

(TO04) -

J5-7

IO~6

(20) -

(P22) -

(TO06) -

J5-8

IO7

P20 -

J6-1

IO8

(4)

(P40) -

TOOL0

J6-2

IO~9

(7)

(P122) -

(TO05) -

J6-3

IO~10

(8)

(P121) -

(TO07) -

J6-4

IO~11

(14) -

(P03) -

([SO00])

J6-5

IO12

(15) -

(P04) -

([SI00])

J6-6

IO13

P05 -

[SCK00]

J6-7

GND

VSS

GND -

J6-8

ADREF

J6-9

SDA

P07 -

SDAA0

J6-10

SCL

P06 -

SCLA0

Notes: 1. "x" in IOx and IO~x means a pin number for the Arduino IDE. The Arduino IDE will be supported in the future.
2. Short-circuit the short-circuit pads for signals with names enclosed in parentheses, "()". 3. When using a signal with "[]", require PIORx register setting.

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5. User Circuits

5.6 MCU Headers

The MCU headers are provided as through holes J1 and J2 for a total of 10 pins. The pin headers have a pitch of 2.54 mm and the evaluation MCU is connected to the through holes for the headers.

Table 5-2 shows the pin assignments of the MCU headers.

Table 5-2 Pin Assignments of the MCU Headers

Part No. in the Circuit Schematics Pin

RL78/G15 Port and Peripheral Modules

Others

J1-1

1 P21/ANI9/IVCMP1/(INTP7)/(TO00)

LED2

J1-2

2 P20/ANI10/IVREF1/(INTP1)/(TI00)/(TI03/TO03)/((SCK01))/((SCL01))

LED1

J1-3

3 P41/TI03/TO03/VCOUT1/(INTP4)/(TI02/TO02)/((SDA01))/((SO01))

J1-4

4 P40/TOOL0/INTP2/(TI01/TO01)/(PCLBUZ0)

TOOL0

J1-5

5 P125*/RESET

RST

J1-6

6 P137/INTP0/TI00

J1-7

7 P122/X2/EXCLK/TI05/TO05/(INTP2)

J1-8

8 P121/X1/TI07/TO07/(INTP3)

J1-9

9 -

J1-10

10 -

J2-1

11 P00/SO00/TXD0/TOOLTXD/INTP6/(SCK01/SCL01)/(SCLA0)

TOOLTXD

J2-2

12 P01/ANI0/SI00/RXD0/TOOLRXD/SDA00/INTP5/(TI02/TO02)

/(SI01)/(SDA01)/(SDAA0)

TOOLRXD

J2-3

13 P02/ANI1/VCOUT0/SCK00/SCL00/PCLBUZ0/INTP7/(TI01/TO01)/(SO01)

J2-4

14 P03/ANI2/IVCMP0/(TI00)/TO00/INTP4/((SO00/TXD0))

J2-5

15 P04/ANI3/IVREF0/TI01/TO01/INTP3/((SI00/RXD0/SDA00))/(SO00/TXD0)

J2-6

16 P05/ANI4/SO01/TI02/TO02/(INTP6)/((SCK00/SCL00))/(SI00/RXD0/SDA00)

J2-7

17 P06/ANI5/SI01/SDA01/SCLA0/(INTP7)/(PCLBUZ0)/(SCK00/SCL00)

J2-8

18 P07/ANI6/SCK01/SCL01/SDAA0/(TO03)/(INTP5)

J2-9

19 P23/ANI7/(SCL01)/(INTP6)/TI04/TO04

J2-10

20 P22/ANI8/(SDA01)/TI06/TO06/(INTP5)

Note: When the RL78 COM port debug tool is in use, use of the P125/RESET pin as P125 is prohibited.

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5. User Circuits

5.7 PmodTM Connector

The specification of the Pmod connector is on the assumption that Pmod modules are to be connectable.
The Pmod connector is assumed to be connected to the Pmod Interface Type 6A module*1. Using the short-circuit pads*2 to switch the wiring also allows connection of the Pmod connector to a Type 2A or 3A module*1.
Notes: 1. For details on the Pmod module from Renesas, refer to the Web site at: https://www.renesas.com/quickconnect.
2. Obtaining the configuration in Figure 5-2 requires switching the wiring by using the short-circuit pads.

However, we do not guarantee connection to all types of Pmod module. Confirm the specifications of this product against any Pmod module you intend to use.
Figure 5-2 and Table 5-3 show the pin assignments of the Pmod connector.

PMOD1
7
6 12

Pmod TM

Pin No.
1 7
2 8
3 9
4 10
5 11
6 12

Power

Port SSPPI((CCSSI)) UART

I22C

GND GND VCC VCC

PP3012

PP14410

PP7033

SSO001

TXD0

P1220

PP7056

(SI00)*2 (RXD0)*2

PP2431

PP7047

(SCK00)*2

PP113370

SSCCLLA010 SSDDAA001

INNTT
INNTTPP74
INTP4

Figure 5-2 Pin Assignments of the Pmod Connector

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Table 5-3 Pin Assignments of Pmod

Pin No. of Name of Pmod Signal*1

Pmod

[Type 6A (2A/3A)]

RL78/G15*1 Signal Name [Type 6A (2A/3A)]

INT(SS/CTS)

INTP7/(P02)

RESET(MOSI/TXD)

P03/([SO00]/[TXD0])

3 SCL(MISO/RXD)

P06/SCLA0

(15)

(P04/[SI00]/[RXD0])*2

4 SDA(SCK/RTS)

P07/SDAA0

(16)

(P05/[SCK00])*2

GND

VCC

IO1(INT/GPIO)

P41/([INTP4])

IO2(RESET/GPIO)

P22

IO3(GPIO)

P23

IO4(GPIO)

P137

GND

VCC

VDD

Notes: 1. The signal names enclosed in parentheses, "()", are specified for use with a Type 2A or 3A module. 2. To use the signals for Type 2A or 3A, make the following changes to settings. Pattern for cutting [SS03]: cut Pattern for cutting [SS04]: cut Short-circuit pad [SC01]: short-circuit Short-circuit pad [SC02]: short-circuit 3. When using a signal with "[]", require PIORx register setting.

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5. User Circuits

5.8 Clock

Clock circuits are provided to handle the clock sources for the evaluation MCU. For details on the specifications of the evaluation MCU, refer to the RL78/G15 User's Manual: Hardware. For details on the clock circuit of this product, refer to the circuit schematics of the RL78/G15 Fast Prototyping Board. Table 5-4 shows the details of the clocks on the RL78/G15 Fast Prototyping Board.

Table 5-4 Details of Clocks

Clock

Function and Usage

State as Shipped

Frequency

Package for the Oscillator

OSC1*

Crystal oscillator for the main system

Not mounted

n/a

clock

SMT

OSC2*

Crystal oscillator or ceramic resonator for Not mounted

n/a

the main system clock

Lead type

Note: Use the main system clock by cutting the patterns for cutting [SS34] and [SS35] and short-circuiting the shortcircuit pads [SC15] and [SC16].

5.9 Reset Switch
Pressing the reset switch (RST) applies a hardware reset to the evaluation MCU.
5.10 User Switch
An optional user switch (SW) is mounted. It is connected to pin 6 of the evaluation MCU, which operates as pin function P137. The INTP0 interrupt is multiplexed on the same pin.
5.11 USB-to-Serial Converter
A USB-to-serial converter (FT232RQ) from FTDI is mounted on the board and is usable with the standard driver of Windows 10. For other operating systems, install the driver by downloading from the following Web site of FTDI.
http://www.ftdichip.com/Drivers -> VCP Drivers
The USB-to-serial converter reset header (J14) is open-circuit; it is recognized as a COM port when the host PC is connected to this board via a USB cable.
As the interface with the RL78 COM port debug tool, the USB-to-serial converter enables debugging and programming of the evaluation MCU. Refer to Chapter 7, Developing Code. Note that the P40, P01, and P00 pins of the evaluation MCU are respectively occupied as the TOOL0, TOOLRxD, and TOOLTxD functions.
When the RL78 COM port debug tool is in use, use of the P125/RESET pin as the P125 port pin is prohibited. Do not make the option byte setting for using P125.
For the method of COM port debugging, refer to the application note, RL78 Debugging Functions Using the Serial Port (R20AN0632).
When the USB-to-serial converter is not used as the interface with the RL78 COM port debug tool, using the RxD0 and TxD0 functions of the P01 and P00 pins enables UART communications between the host PC and the evaluation MCU. The user needs to prepare the terminal software, such as TeraTerm.

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5. User Circuits

5.12 USB-to-Serial Converter Reset Header

The USB-to-serial converter is placed in the forced reset state by short-circuiting its reset header (J14). If the evaluation MCU alone is to operate without the use of the RL78 COM port debug tool, place the USB-to-serial converter in the reset state. This allows the use of P01 (RxD0) and P00 (TxD0) as facilities other than for a UART, such as port pins, while a reset is being applied to the USB-to-serial converter. Even if P01 and P00 are used as facilities other than for a UART, such as port pins, the board must be connected to the host PC by using the USB cable. Figure 5-3 shows the position of the USB-to-serial converter reset header.

USB-to-serial converter reset header (J14)

Figure 5-3 Position of the USB-to-Serial Converter Reset Header (Top Side)

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5. User Circuits

5.13 Power-Supply Selection Header
The operating power (VDD) of the evaluation MCU can be changed to 5 V or 3.3 V or to supply from the emulator or external power with the use of a header (J15). Only change the jumper setting of J15 while power is not being supplied.
· 1-2 of J15 being short-circuit selects a 5-V power supply. This is the default setting as shipped (Figure 5-4).
· 2-3 of J15 being short-circuit selects a 3.3-V power supply (Figure 5-5). · J15 being open-circuit selects supply from the emulator or external power (Figure 5-6).

1-2 short-circuit: 5 V

Figure 5-4 Setting of the Header to Select a 5-V Power Supply (Top Side)
2-3 short-circuit: 3.3 V

Figure 5-5 Setting of the Header to Select a 3.3-V Power Supply (Top Side)

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Open-circuit: emulator or external
power supply

5. User Circuits

Figure 5-6 Setting of the Header to Select Supply from the Emulator or External Power (Top Side)

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5. User Circuits

5.14 External Power Supply
When the evaluation MCU is to have a desired power-supply voltage, or when more current is required, use an external power supply. The usable voltages depend on the evaluation MCU.
Destinations for the connection of an external power supply:
· VDD: pin J16-1 on the external power-supply header · GND: pin J16-2 on the external power-supply header
Figure 5-7 shows the positions of the external power supply.
When an external power supply is used, confirm that the I/O voltages for Arduino shields or Pmod modules are correct.

Pin J16-1:
VDD

Pin J16-2:
GND

Figure 5-7 Positions of the Destinations for Connection of an External Power Supply (Top Side)

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5. User Circuits

5.15 Current Measurement Header

This header (J7) is used to measure the current drawn by the evaluation MCU (J7 header components are not mounted). Connecting an ammeter to this product enables measurement of the current being drawn by the evaluation MCU. Take care to cut the given pattern for cutting (SS30) if this header is to be used. Figure 5-8 shows the positions of the current measurement header and pattern for cutting.

Top side

Soldered side

Current measurement header (J7)

VDD pin side of pin 10 of the
MCU

Pattern for cutting (VDD) (SS30)

Figure 5-8 Positions of the Current Measurement Header and Pattern for Cutting (VDD)

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5. User Circuits

Insert an ammeter between the sockets of the current measurement header (J7) to measure the current. Cut the pattern for cutting (SS27) (Figure 5-10) and turn down the LED to reduce the current drawn with an MCU other than the evaluation MCU.
Figure 5-9 is a block diagram of the power-supply lines related to the measurement of current drawn. For a block diagram of the power-supply circuit as a whole, refer to Figure 6-2.

SVSD3D0 VDD
12
JJ171

RRLL7788//GG2125

VDD

PP2602 PP2613

SSP6226

SSP6235

VCCIO

VDD

FTDI

SS27

Figure 5-9 Block Diagram of the Headers Related to Current Measurement

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5. User Circuits

5.16 Pattern for Cutting the I/O Power Supply for the USB-to-Serial Converter

If you intend to use this board without connecting a USB connector, cut the given pattern for cutting (SS27). Figure 5-10 shows the position of the pattern for cutting.

Pattern for cutting (VCCIO) (SS27)
Figure 5-10 Position of the Pattern for Cutting (VCCIO)
5.17 Emulator Connector
This 14-pin connector (J9) is used to connect this product to an on-chip debugging E2 emulator or E2 emulator Lite, from Renesas Electronics, incorporating programming facilities. The emulator is used for programming or debugging the evaluation MCU. To connect the emulator, change the circuit as follows. · J9: 14-pin connector must be mounted. · J10, J11, and J12: pins 2-3 are short-circuit · Pattern for cutting [SS31]: cut · Pattern for cutting [SS32]: cut · Pattern for cutting [SS33]: cut

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5. User Circuits

Top side

J12: Pins 2-3 short-circuit
J11: Pins 2-3 short-circuit
J10: Pins 2-3 short-circuit

Soldered side

Pattern for cutting (SS31):
cut
Pattern for cutting (SS32):
cut
Pattern for cutting (SS33):
cut

Figure 5-11 Settings for Use with the Emulator Connector
For the usage of the emulator, refer to the E1/E20/E2 Emulator, E2 emulator Lite Additional Document for User's Manual (Notes on Connection of RL78) (R20UT1994).
If you use COM port debugging with the use of the USB-to-serial converter, make the following change to settings as follows.
· J10, J11, and J12: pins 1-2 are short-circuit For patterns for cutting (SS31, SS32, and SS33) that have been cut, solder need not to be applied.

Soldered side
J12: Pins 1-2 short-circuit
J11: Pins 1-2 short-circuit J10: Pins 1-2 short-circuit
Figure 5-12 Settings for Use with COM Port Debugging

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6. Handling Precautions

6. Handling Precautions

6.1 Power to be Supplied
When power is supplied to this product through the USB or from an emulator, note that the total current of VDD, 5 V, and 3.3 V should not exceed the maximum current of 200 mA.
6.2 Remodeling the Board
Any modification of the board (including cutting the patterns for cutting) shall be conducted at the user's own responsibility.
The following shows the settings of jumpers as shipped.
· J14: open-circuit · J15: pins 1-2 are short-circuit
In this document, "short-circuit pads" refers to pairs of pads for short-circuiting by solder.
"Pattern for cutting" refers to a narrow signal pattern in the middle part between two short-circuit pads. When you cut the pattern for cutting, do not cut over the silkscreened frame of a white ellipse.

Pattern for cutting

Image of a pattern to be cut

Short-circuit pads
Figure 6-1 Pattern for Cutting and Short-circuit Pads
In some cases, a pattern for cutting may not be visible because it has been covered with coating of a resist. Also refer to the circuit schematics.
In the circuit schematics, the symbol to the left indicates an SS short-circuit pad, for which the default state is short-circuit and that there is a pattern for cutting between short-circuit pads.
In the circuit schematics, the symbol to the left indicates an SC short-circuit pad, for which the default state is open-circuit and that there are only shortcircuit pads without any pattern for cutting.

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6. Handling Precautions

6.3 Power Supplies and Usage Conditions

Different power supplies can be selected. Table 6-1 shows the relationship between power-supply sources and usage conditions.

Figure 6-2 shows the block diagram of the power-supply circuit.

Table 6-1 Power-Supply Sources and Usage Conditions

Power-Supply Source

Power supplied to
the evaluation
MCU

Use of Arduino shields*1

Usage Condition

Use of

Use of an

Pmod emulator and

modules*1

IDE

Jumper setting*2

USB*4 (default)

5 V or 3.3 V Possible

Possible

Possible*3

Not required · J15: 1-2 short-circuit: 5 V (default) Required

· J15: 2-3 short-circuit: 3.3 V

External power 2.4 V to 5.5 V Possible supply

Possible

Possible*3

Required · J15: open-circuit

Emulator

E2 Lite: 3.3 V Possible*5
E2: 2.4 V to 5.0 V

Possible

Required · J15: open-circuit

Notes: 1. Connecting the RL78/G15 Fast Prototyping Board to an Arduino shield or a Pmod module shall be conducted at the user's own responsibility and should only proceed after confirming the specifications of the power supply and interfaces. When an Arduino shield requires the supply of 5-V or 3.3-V power, connect the host PC to this board via the USB cable.
2. Requirements for modifications after shipment are stated in this column.
3. Use the IDE in a state where power is being supplied from a source other than the emulator.
4. If power to be supplied to this product other than via the USB, make J15 open-circuit and cut the pattern for cutting (VCCIO) (Figure 5-10).
5. The shape of the Arduino shield may make using this product with the emulator difficult.

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5 V (VBUS)

USB

Micro B

FTDI

5V 1

LDO

2
3.3 V
3
Power-supply selection header (J15)

VCCIO

VDD

6. Handling Precautions

5V 3.3 V IOREF

Arduino

VIN

Pmod

VDD

RL78/G15

Emulator

(Pin J16-1: VDD)
(Pin J16-2: VSS)

External power supply

Figure 6-2 Block Diagram of the Power-Supply Circuit

6.4 Precautions when using P00/TxD0
In this product, If you write a user program to the target MCU that starts UART transmission output to the P00/TxD0 line when the power is turned on, immediately after resetting the USB-serial converter, or before the host PC recognizes the USB-serial converter as the COM port, the USB-serial converter device may become unstable, and you may not be able to connect to Renesas Flash Programmer or terminal software.
In such a case, hold down the reset switch, turn on the power (connect the USB cable), wait until the host PC recognizes it as a COM port (about 3 seconds), then release the reset switch.
Alternatively, while holding down the reset switch, reset the USB-serial converter (short J14 once and return it to open), wait until the host PC recognizes it as a COM port (about 3 seconds), then release the reset switch.
Then erase the user program with Renesas Flash Programmer.

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7. Developing Code

7. Developing Code

Use the e2 studio or CS+, both of which support the evaluation MCU (RL78/G15).
7.1 Using the e2 studio
Figure 7-1 shows the settings of the e2 studio when it is to be connected to the RL78/G15 Fast Prototyping Board.
· [Debug hardware]: Select [COM port (RL78)]. · [Target Device]: Select [R5F12068ASP]. · [Connection with Target Board]:
[COM Port]: Select the COM port number for assignment to the RL78/G15 FPB from the pull-down list. [Reset control pin]: Select [DTR].

R5F12068ASP

Figure 7-1 Settings of the e2 studio

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7. Developing Code

7.2 Using CS+

Figure 7-2 and Figure 7-3 show the settings of CS+ when it is to be connected to the RL78/G15 Fast Prototyping Board.
[Using Debug Tool]:
Select [RL78 COM Port] from [Using Debug Tool] in the [Debug] menu.

Figure 7-2 Panel for Selecting the Debug Tool [Connection with Target Board]: [Communication port]: Select the COM port number for assignment to the RL78/G15 FPB from the pull-down list. [Reset control pin]: Select [DTR].

Figure 7-3 [Connect Settings] Tabbed Page of CS+ For details and points for caution, refer to the following application note for the RL78 COM port debug tool. · RL78 Debugging Functions Using the Serial Port (R20AN0632)

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8. Additional Information

8. Additional Information

Technical Support For details on the usage of the IDE, refer to its help menu. For details on the evaluation MCU (RL78/G15), refer to the RL78/G15 User's Manual: Hardware. For details on the RL78 assembly language, refer to the RL78 Family User's Manual: Software.

Technical Contact Details America: techsupport.americarenesas.com Europe: https://www.renesas.com/en-eu/support/contact.html Global & Japan: https://www.renesas.com/support/contact.html

General information on Renesas microcontrollers can be found on the Renesas website at: https://www.renesas.com/

Note Do not install the RL78/G15 Fast Prototyping Board or sample code into your product. The operation of sample code is not guaranteed. Confirm the operation on your own responsibility.

Copyright
This document may be, wholly or partially, subject to change without notice. All rights reserved. Duplication of this document, either in whole or part is prohibited without the written permission of Renesas Electronics Europe Limited.

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Revision History

Rev. 1.00

Date Oct.1.22

Page New

RL78/G15 Fast Prototyping Board User's Manual
Description Summary

RL78/G15 Fast Prototyping Board User's Manual

Publication Date: Rev.1.00 Oct.1.22

Published by:

Renesas Electronics Corporation

RL78/G15
R12UM0042EJ0100

References

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