Renesas RL78/F24

E1/E20/E2 Emulator, E2 Emulator Lite
Additional Document for User’s Manual
(Notes on Connection of RL78)
Rev.9.00 Jan 2022
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 Corporation without notice. Please review the latest information published
by Renesas Electronics Corporation through various means, including the Renesas Electronics
Corporation website (http://www.renesas.com).
Supported Devices:
RL78 Family
RL78/D1A, RL78/F12, RL78/F13, RL78/F14, RL78/F15, RL78/F1A,
RL78/F24,
RL78/G11, RL78/G12, RL78/G13, RL78/G14, L78/G1A, L78/G1C,
RL78/G1D, RL78/G1E, RL78/G1F, RL78/G1G, L78/G1H,
RL78/G1P, RL78/G13A, RL78/G23,
RL78/I1A, RL78/I1B, RL78/I1C, RL78/I1D, RL78/I1E,
RL78/L12, RL78/L13, RL78/L1A, RL78/L1C,
RL78/FGIC

Renesas RL78/F24 Specifications

General

Brand	Renesas
Model	RL78/F24
Category	Computer Hardware
Language	English

Summary

General Precautions in the Handling of Microprocessing Unit and Microcontroller Unit Products

Overview

Overview of E1 E20 E2 Emulator and E2 emulator Lite

Introduces the E1, E20, E2, and E2 Lite as on-chip debugging emulators for Renesas MCUs.

Supported Devices

Lists the RL78 family MCUs compatible with the emulators.

Overview of the Specifications of the External Trigger Input and Output

Details the external trigger functionality of the E2 emulator.

Terminology

Designing the User System

Connecting the E1 E20 E2 E2 Lite to the User System

Explains the initial connection requirements for the user system.

Installing the Connector on the User System

Covers the physical installation of connectors and adapters for system integration.

Pin Assignments of the Connector on the User System

Details the specific pin configurations of the emulator's 14-pin connector.

Recommended Circuits between the Connector and the MCU

Provides essential circuit diagrams for connecting the emulator to various RL78 MCUs.

Notes on Connection

Offers critical guidelines and precautions for signal connections.

Internal Circuits of the Emulator

Illustrates the internal circuitry of the emulators.

Notes on Designing the User System

Additional design considerations, including isolators and connector adapters.

Notes on Usage

Turning the Power OnOff

Step-by-step procedures for safe power management of the emulator and user system.

MCU Resources to be Occupied

Identifies memory areas used by the emulator for debugging operations.

Setting a Security ID

Covers setting security IDs to prevent unauthorized access and enable debugging.

Reset

Discusses reset behavior and its impact on debugging processes.

Flash Memory

Addresses specific considerations for flash memory programming.

MCUs that are Used in Debugging

Advises on proper handling of MCUs used during the debugging phase.

Final Evaluation of the User Program

Emphasizes pre-production evaluation without the emulator.

Debug Functions

Provides an overview of the various debugging features available.

Stepped Execution

Explains stepped execution and associated considerations.

Pseudo-Real-Time RAM Monitor Function or Pseudo-Dynamic Memory Modification Function

Notes on using pseudo-RRM/DMM functions, including clock dependencies.

Points for Caution on Using the RL78 G23

Highlights precautions specific to the RL78/G23, such as flash read protection.

Points for Caution on Using the RL78 F24

Covers critical cautions for the RL78/F24, including security and reset handling.

Revision History