CHAPTER 3 INSTALLATION
User’s Manual U14362EJ2V1UM
27
3.3
Power Supply Voltage Setting of Target Interface
In the IE system, emulation is possible with a voltage of the same level as the power supply voltage of the target
system.
When the target system is not connected, the IE system automatically operates with the emulator’s internal power
supply (5 V). When debugging with a voltage that is the same level as that of the target system, supply the same
voltage as that of the target system to the TP1 terminal pin of the IE-789026-NS-EM1 (the same applies when the
voltage is 5 V).
Set the target voltage to between 1.8 and 5.0 V.
• Maximum current consumption of TP1
1.8 to 5.0 V: Approximately 100 mA
Figure 3-9. Connection of TP1 and Power Supply Voltage of Target System
Caution
Connect TP1 on the board and the power supply voltage of the target system after turning
off the power of the IE-78K0S-NS or IE-78K0S-NS-A.
Remark
The V
DD
pin of the target system is only used for controlling LED1 (TV
CC
), which monitors whether
the power supply of the target system is connected in the IE-789026-NS-EM1.
CN2 42CU
IE-789026-NS-EM1
X1
TP1
GND
V
DD
Emulation Probe
Target system
CN1 44GB
LED1
GND
LowVolt
Power supply voltage
of target system
