M30870T2-CPE User’s Manual
2. Setup
REJ10J0766-0400 Rev.4.00 February 16, 2006
2.6 Turning ON the Power Supply
2.6.1 MCU Power Supply Source Selection Jumper/MCU Power Supply Voltage Selection Jumper
Set the MCU power supply source selection jumper and the MCU power supply voltage selection jumper of the emulator
according to conditions of use.
Figure 2.6 Jumper switch locations
These are the jumper switches to select power supply to the MCU and its power voltage. As shown in Table 2.2 below, set the
switch according to the connection to the user system.
Table 2.2 Setting jumper switches
Connection to
the user system
MCU power supply
source selection
jumper (JP1)
MCU power supply
voltage selection
jumper (JP2)
Description
3.3 V
Supplied from the emulator. The MCU operating
voltage is 3.3 V.
Not connected
INT
5.0 V
Supplied from the emulator. The MCU operating
voltage is 5.0 V.
Connected EXT Invalid
Supplied from the user system. This emulator
consumes max. 500 mA of electrical current from the
user system.
CAUTION
Note on Jumper Switch Settings:
Always shut OFF the emulator before changing the setting of the jumper switches, and connecting the cable.
Otherwise the internal circuit may cause a break.
MADE
POWER
SW1
COMPACT EMULATOR
INT
JP
1
5.
0V
JP
2
3.
3V
EX
T
CLOCK
RESET
RUN
LED3
LED6
LE
D
5
LE
D
4
POWER
LED1
SAFE
LED2
JP1: MCU power supply source
selection jumper
(factory-setting: INT)
JP2: MCU power supply voltage
selection jumper
(factory-setting: 5.0V)
IN
T
JP
1
5.
0V
JP
2
3.
3
V
EX
T
M30870T2-CPE
POWER USB
5.0V
5.0V
3.3V
MCU
POWER
EXT
INT
JP2
JP1
STATUS
SYSTEM
STATUS
TARGET
MADE IN JAPAN
COMPACT EMULATOR
POWER
SAFE
POWER
CLOCK
RESET
RUN
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