User's Manual
Table Of Contents
- 1. Overview
- 2. Power Supply
- 3. Board Layout
- 4. Connectivity
- 5. User Circuitry
- 6. Configuration
- 6.1 Modifying the RSSK
- 6.2 MCU Operating Modes
- 6.3 E1/E2 Lite Debugger Configuration
- 6.4 Power Supply Configuration
- 6.5 Clock Configuration
- 6.6 Analog Power and ADC Configuration
- 6.7 CAN Configuration
- 6.8 I2C & EEPROM Configuration
- 6.9 IRQ & Switch Configuration
- 6.10 LED Configuration
- 6.11 MCU Header Configuration
- 6.12 PMOD1 Configuration
- 6.13 PMOD2 Configuration
- 6.14 Bluetooth® Low Energy (BLE)
- 6.15 Serial Sound Interface (SSI)
- 6.16 Touch Interface Configuration
- 6.17 USB to Serial Configuration
- 6.18 USB Configuration
- 7. Code Development
- 8. Additional Information
- 9. Certification of Compliance

How to Use This Manual
1. Purpose and Target Readers
This manual is designed to provide the user with an understanding of the CPU Board hardware functionality,
and electrical characteristics. It is intended for users designing sample code on the CPU Board platform, using
the many different incorporated peripheral devices.
The manual comprises of an overview of the capabilities of the RSSK product, but does not intend to be a
guide to embedded programming or hardware design.
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 Usage Notes 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 RX23W Group. Make sure to refer to the latest versions of these
documents. The newest versions of the documents listed may be obtained from the Renesas Electronics Web
site.
Document Type
Description
Document Title
Document No.
User’s Manual Describes the technical details of the
CPU Board hardware.
Renesas Solution Starter Kit for
RX23W
User’s Manual
R20UT4446EG
Tutorial Manual
Provides a guide to setting up RSSK
environment, running sample code an
d
debugging programs.
Renesas Solution Starter Kit for RX23W
Tutorial Manual
R20UT4447EG
Quick Start Guide Provides simple instructions to setup
the RSSK and run the first sample.
Renesas Solution Starter Kit for
RX23W
Quick Start Guide
R20UT4448EG
Smart Configurator
Tutorial
Provides a guide to code generation
and importing into the e
2
studio IDE.
Renesas Solution Starter Kit for RX23W
Smart Configurator Tutorial Manual
R20UT4449EG
Schematics Full detail circuit schematics of the
CPU Board.
Renesas Solution Starter Kit for
RX23W
Schematics
R20UT4445EG
Hardware Manual
Provides technical details of the
RX23W microcontroller.
RX23W Group User’s Manual: Hardware
R01UH0823EJ