E1/E20/E2/E2 Lite Additional Document
R20UT1994EJ0900 Rev.9.00
Page 7 of 58
Jan.20.22
1. Overview
This document explains notes on usage when the E1, E20, and E2 emulators and the E2 emulator Lite are
connected to RL78 devices.
1.1
Overview of E1/E20/E2 Emulator and E2 emulator Lite
In this document, we describe
‘E2 Emulator’ as ‘E2’, ‘E1 Emulator’ as ‘E1’, ‘E20 Emulator’ as ‘E20’ and ‘E2
e
mulator Lite’ as ‘E2 Lite’.
The E1, E20, E2, and E2 Lite are on-chip debugging emulators for Renesas' mainstream MCUs.
The E1 and E2 Lite are highly affordable development tools providing basic debugging functions. The E20 is
a development tool allowing sophisticated debugging through enhanced functions such as tracing and RAM
monitoring as well as the basic debugging functions of the E1 and E2 Lite. The E2 is a development tool
providing a solution for the tuning of current consumption and an external trigger function as extended
functions beyond the basic debugging functions of the E1 and E2 Lite. The E1/E20/E2/E2 Lite can also serve
as a Flash Programmer.
1.2
Note on Using E20
The large trace function and the real-time RAM monitoring function, which are the primary features of the
E20, cannot be used with RL78 devices.
The available functions are equivalent to those of the E1/E2 Lite (only the internal trace function in the MCU
and memory reference and modification during execution).
The power supply function from the E20 is not supported.
