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CHAPTER 3 OPERATING THE EMULATOR
3.4 User Port Power Supply Switching
Select a user port power supply for the evaluation MCU.
■ Switching of the user port power supply
On the emulator, use the jumper for switching the user port power supply to set the reference
voltage of the user data bus probing circuit.
The user data bus for which the reference voltage is set corresponds to user ports 0 and 1. Set
the user port reference voltage for each port power supply source.
For details on the user data bus probing circuit, see Section 3.6 "User Data Bus Switching."
UV
CC
1: Main power supply for the evaluation MCU
UV
CC
2: Secondary power supply for the evaluation MCU
Table 3.4-1 "Settings of the jumper for switching the user port power supply" lists settings of the
jumper for switching the user port power supply.
Make sure that power to the product is turned off and the power plug is
disconnected from outlets before handling jumpers. Doing so may
result in device problems or electric shock.
CAUTION
Prohibition
Table 3.4-1 Settings of the jumper for switching the user port power supply
User system
power supply
source
VCC SEL setting
Jumper for selecting user port 0 power
supply (P0V)
(*1)
Jumper for selecting user port 1 power
supply (P1V)
(*1)
Single source A connected to B (UV
CC
1 setting) A connected to B (UV
CC
1 setting)
Dual source
Jumper connection on target power supply
side
(*2)
Jumper connection on target power supply
side
(*2)
A connected to B
(UV
CC
1 setting)
B connected to C
(UV
CC
2 setting)
A connected to B
(UV
CC
1 setting)
B connected to C
(UV
CC
2 setting)
*1: See Figure 3.3-1 "Emulator-dedicated power supply switching jumper" for positions of the jumper for
switching the user port power supply.
*2: Set a jumper connection to select the VCC that corresponds to a user port power supply.
Example: User port 0 power supply is UV
CC
1, and user port 1 power supply is UV
CC
2:
Jumper for selecting user port 0 power supply (P0V): Connect A to B (UV
CC
1 setting).
Jumper for selecting user port 1 power supply (P1V): Connect B to C (UV
CC
2 setting).