Renesas M34286T2-CPE, Руководство пользователя

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M34286T2-CPE User’s Manual
2. Setup
R20UT0214EJ0200 Rev.2.00 Page 24 of 70
Sep 16, 2010
2.3.2 Selecting Clock Supply
This product always uses the internal oscillator circuit as a clock supply to the evaluation MCU.
(1) Kinds of Oscillator Boards
The M34286T2-CPE comes with an oscillator circuit board OSC-2 (4MHz). And an oscillator circuit bare board OSC-2
is included with this product. A clock supplied to an MCU can be changed by replacing oscillator circuit boards.
(2) Replacing Oscillator Circuit Boards
Figure 2.3 shows how to replace oscillator circuit boards.
Oscillator circuit board
M34286T2-CPEB
TP
1
VD
D
2
GN
D
TP
2
W
RS
T
PO
F
LE
D
1
J3
10 11
1
20
J4
SW
1
M
AD
E
PO
W
ER
CO
M
PA
C
T
E
M
UL
A
T
O
R
INT
JP1
5.0 V
JP2
3.3V
EXT
CL
O
C
K
R
ESE
T
RU
N
LE
D
3
LE
D
6
LED
5
LED
4
PO
W
ER
SA
F
E
LE
D
2
LE
D
1
SA
F
E
PO
W
E
R
PO
W
E
R
CL
O
C
K
R
ESE
T
RU
N
M34
2
86T
2-C
P
E
S
T
AT
US
SY
S
T
E
M
ST
A
T
U
S
TA
RG
E
T
MA
D
E
IN
J
A
P
A
N
CO
M
P
AC
T
E
M
U
L
AT
O
R
PO
W
E
R
5.
0V
Don't Use
USB
IC
2
2
The location of the oscillator circuit board is shown left.
Unscrew the screw securing the oscillator circuit board.
Lift off the oscillator circuit board.
Attach another oscillator circuit board to the connector of
the emulator.
Secure the new oscillator circuit board with the screw.
Figure 2.3 Replacing oscillator circuit boards
CAUTION
Note on Replacing the Oscillator Circuit Board:
•
When removing the upper cover or replacing the oscillator circuit boards, be sure to shut OFF the power
supply. Otherwise the internal circuit may cause a break.