CHAPTER 3 INSTALLATION
User’s Manual U16431EJ1V0UM
21
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 (3.9 V). When debugging with a voltage that is the same level as that of the target system, supply the same
voltage (2.7 to 3.6 V: same as that of the device) as that of the target system to the V
DD
pin of the emulation probe.
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
2.7 to 3.6 V: 50 mA
Table 3-3. Setting Power Supply of Target Interface
Integrated Debugger (ID78K0S-NS)
Power Supply of Target Interface (LV
CC
)
Operating Power Supply Selection
When connecting target system
2.7 to 3.6 V
Target
When not connecting target system
3.9 V
Internal
Figure 3-2. Connecting Power Supply Voltage to Target System
GND
V
DD
Emulation
probe
Target system
Target system power
supply voltage
LED
TGCN1
USER VDD
Caution
Before connecting the board and the target system power supply voltage, turn off the power to
the IE-78K0S-NS or IE-78K0S-NS-A.
