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2. Functional Specifications
2.1
Configuration of the Power Supply
The power to the M32R/ECU can be supplied from two sources, VCC-BUS and VCCE,
independently of each other. With default settings, the power to the M32R/ECU is fed through the
VCCE power supply connector to all of its internal circuits.
CN1
S2B-XH-A
1
VCC
2
GND
CN2
S2B-XH-A
1
VCC
2
GND
* CONx : Connector
* Jx : Jumper
* TXx : Test pin
* Ux : IC
Note: CN1, TX1 and U3 are not mounted but they only have patterns available.
Figure 2.1 Power Supply Circuit
REJ10B0223-0150/Rev.1.50
TX1
J3
3
2
1
TX2
1
2
J4
U3
LT1086CM-3.3
5V
1
2
J5
1
2
J7
Mar 2008
32185/32186/32192/32195/32196 Group
Starter Kit User's Manual M3A-2154G52B
VCC-BUS power supply
VCCE power supply
VCCER power supply
3.3V
AVCC0 power supply
1
2
VREF0 power supply
J6
VDDE power supply
Page 38 of 80
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