E30A Emulator User
’s Manual
2. Setup
R20UT0422EJ0501 Rev.5.01
Page 26 of 65
Mar 15, 2016
2.6.3 Using the Option Board R0E00030ACKZ10
(1) Processing NSD pin
Pull up NSD pin of the target MCU to Vcc1 with a 4.7kΩ resistor. (It cannot be connected directly to Vcc1 and Vcc2.)
Furthermore, be sure that the wiring from NSD pin to the connector (pin 4) is shortest possible.
(2) Mounting part in place
Mount the 2.54mm pitch 8-pin socket included with the product (PIC-FS08-G+R made by Honda Tsushin Kogyo) on
designated position of the user system. Furthermore, mount the 2.54mm pitch 8-pin straight pin included with the product
(PIC-MSA08-2G made by Honda Tsushin Kogyo) on CN4 (solder side) of the option board.
(3) Wiring of Vcc1 and Vcc2
Vcc1 (pin 1) is used to monitor the power supply condition of the user system and as power supply for the RST# and
RSTMSK output buffers.
Vcc2 (pin 2) monitors the power supply condition of the user system.
(4) Wiring of RST# and RSTMSK
Since the target MCU is reset in hardware from the E30A emulator, connect RST# signal (pin 6) to the RESET# terminal
of the target MCU.
If the reset circuit of the user system uses an open-drain output, pull it up to Vcc1 with a 4.7k–22kΩ resistor. The same
applies for the power-on reset case making use of a CR circuit.
If the reset signal is generated as CMOS output from other logic devices, the user system may have a RSTMSK signal
connected to disable the output. Since RSTMSK input is indeterminate when the E30A emulator is not connected, it
requires a pulldown resistor.
(5) Connection procedure
Plug the 10-pin flat cable included with the product into CN3 on the option board.
Plug the 50Ω coaxial cable (gray) included with the product into CN1 on the coaxial converter board.
Fit CN2 on the coaxial converter board into CN2 on the option board. It can be turned 180 degrees as it is fitted into place.
Fit CN4 on the option board into the 8-pin socket on the user system.
Alternatively, the coaxial converter board can be attached to pins 3-5 of the 8-pin socket on the user system without using
the option board.
(6) Compatibility with the E30 emulator (old product)
If you have hitherto been using the 8-pin flat cable of the E30 emulator, you can attach the 2.54mm pitch 8-pin right angle
connector included with the product (FFC-8LAMEP1B made by Honda Tsushin Kogyo) to CN4 (component side) of the
option board, for connection to the user system. However, since the non-coaxial NSD wiring becomes longer, it is
recommended that the connector on the user system be replaced with the 8-pin socket, and that the 8-pin straight pin be
used for connection.
