
M30870T2-CPE User’s Manual
2. Setup
REJ10J0766-0400 Rev.4.00 February 16, 2006
(1) MCU Power Supply Source Selection Jumper/MCU Power Supply Voltage Selection Jumper
These are the jumper switches to select power supply to the MCU and its power voltage. As shown in Table 2.5 below, set the
switch according to the connection to the user system.
Table 2.5 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 Setting Jumper Switches:
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.
When the MCU power supply source selection jumper is set to INT and the MCU power supply voltage
selection jumper is set to 5.0 V, the JP1 of the M30870T-EPBM can only be set as VCC1 = VCC2.
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