Setting Power Supply Voltage Of Target Interface - NEC IE-789306-NS-EM1 User Manual

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3.3 Setting Power Supply Voltage 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-789306-NS-EM1 (the same applies when the voltage is 5 V).
Set the target voltage to between 1.8 and 5.0 V.
For how to select the operating power supply, refer to the ID78K Series Ver.2.30 or Later Operation Windows-
Based User's Manual (U15185E).
• Maximum current consumption of TP1
1.8 to 5.0 V: Approximately 100 mA
Power Supply of Target Interface (LV
When connecting target system
When not connecting target system
Figure 3-2. Connecting TP1 and Target System Power Supply Voltage
Caution
Before connecting TP1 on the board and the target system power supply voltage, turn off the
power to the IE-78K0S-NS or IE-78K0S-NS-A.
Remark The V
pin on the target system is exclusively used to control LED1 (USER VDD) that monitors
DD
whether the power supply of the target system is connected in the IE-789306-NS-EM1.
CHAPTER 3
Table 3-3. Setting Power Supply of Target Interface
)
CC
1.8 to 5.0 V
5 V
IE-789306-NS-EM1
LED1
USER VDD
Emulation
probe
Target system
User's Manual U16115EJ2V0UM
INSTALLATION
Integrated Debugger (ID78K0S-NS)
Operating Power Supply Selection
CN1
LV
GND
DD
TP1
V
GND
DD
Target system power
supply voltage
Target
Internal
21

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