CHAPTER 3 OPERATING THE EMULATOR
3.4User Port Power Supply Switching
Select a user port power supply for the evaluation MCU.
■Switching of the user port power supply
CAUTION
Make sure that power to the product is turned off and the power plug is
Prohibition disconnected from outlets before handling jumpers. Doing so may result in device problems or electric shock.
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."
UVCC1: Main power supply for the evaluation MCU
UVCC2: Secondary power supply for the evaluation MCU
Table
Table
User system |
|
| VCC SEL setting |
| |
|
|
|
| ||
power supply | Jumper for selecting user port 0 power | Jumper for selecting user port 1 power | |||
source | supply (P0V)(*1) | supply (P1V)(*1) | |||
Single source | A connected to B (UVCC1 setting) | A connected to B (UVCC1 setting) | |||
|
| Jumper connection on target power supply | Jumper connection on target power supply | ||
Dual source |
| side(*2) |
| side(*2) |
|
| A connected to B | B connected to C | A connected to B | B connected to C | |
|
| ||||
|
| (UVCC1 setting) | (UVCC2 setting) | (UVCC1 setting) | (UVCC2 setting) |
*1: See Figure
*2: Set a jumper connection to select the VCC that corresponds to a user port power supply.
Example: User port 0 power supply is UVCC1, and user port 1 power supply is UVCC2:
Jumper for selecting user port 0 power supply (P0V): Connect A to B (UVCC1 setting).
Jumper for selecting user port 1 power supply (P1V): Connect B to C (UVCC2 setting).
40
