E30A Emulator User
’s Manual
2. Setup
R20UT0422EJ0501 Rev.5.01
Page 24 of 65
Mar 15, 2016
2.6 Connecting the E30A Emulator and the User System
2.6.1 Using the Coaxial Connector
(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 is shortest possible.
(2) Mounting part in place
Mount the coaxial connector included with the product (HRM-300-126B(40) made by Hirose Electric) on designated
position of the user system.
(3) Connection procedure
Plug the 50Ω coaxial cable (gray) included with the product into the E30A emulator and the coaxial connector on the user
system.
Although the cable can be connected over a distance, the power supply condition of the user system cannot be monitored.
Furthermore, since only a software reset is possible from the E30A emulator, a hardware reset is required when the emulator
debugger is started or when a communication error occurs. Figure 2.4 is a connection diagram showing how to connect the
E30A emulator and user system using the coaxial connector.
E30A Emulator
User system
4.7k
Ω
Target MCU
Vcc1
Vcc2
NSD
GND
Figure 2.4 Connection diagram when using the coaxial connector
CAUTION
Caution for Insertion/Removal of the Coaxial Cable:
When inserting or removing the coaxial cable, be aware not to rotate it. The center core of the coaxial
cable may be broken.
