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CPX4 AC-PLC Evaluation Kit M02D2 RTK0EE0009D02001BJ
3.2.9 Control MCU(RX651)
RX651 MCU board is equipped with RX651 as MCU for control. Table 3-18 and Table 3-19 show the connection
information of the control MCU terminals.
For unused terminals of the MCU connected to CPX4, set them to the input port. Also, set other unused terminals to
the input ports and enable the built-in pull-up function.
Terminal
Terminal name
number
MCU(RX651) side
1
AVCC1
2
EMLE
3
AVSS1
4
PJ3
5
VCL
6
VBATT
7
MD/FINED
8
XCIN
9
XCOUT
10
RES#
11
XTAL/P37
12
VSS
13
EXTAL/P36
14
VCC
15
P35/NMI
16
TRST#/P34
17
P33
18
P32
19
TMS/P31
20
TDI/P30
21
TCK/P27
22
TDO/P26
23
P25
24
P24
25
P23
26
P22
27
P21/RXD0
28
P20/TXD0
29
P17/SDA2
30
P16/SCL2
31
P15
32
P14
33
P13/SDA0
34
P12/SCL0
35
VCC_USB
36
USB0_DM
37
USB0_DP
38
VSS_USB
39
P55
40
P54
41
P53
42
P52
43
P51
44
P50
45
PC7/UB
46
PC6
47
PC5
48
PC4
49
PC3
50
PC2
R30UZ0165EJ0100 Rev.1.00
July 01, 2021
Table 3-18 RX651 MCU terminal connection 1/2
Connection destination
-
3.3V
-
CN305-4
-
GND
I
-
-
Stabilization capacity (0.22uF)
-
3.3V
C305-7 / JP301-1
Pull-down resistor
-
CN305-13 and CN303-7
24 MHz crystal
-
GND
-
24 MHz crystal
-
3.3V
I
Pull-down resistor
I
CN305-3
I
-
I
-
I
CN305-9
I
CN305-11
I
CN305-1
I
CN305-5
I
-
O
LED302
O
LED301
I
-
I
CN303-3
O
CN303-5
I/O
-
O
CN302-1
I
-
O
-
I/O
-
O
-
-
3.3V
I/O
CN302-2
I/O
CN302-3
-
GND
I
-
I
CN6-1 / CN303-1 / SW7-1
I
-
I
-
I
-
I/O
-
I
CN304-1 / CN305-10
I/O
CN304-2
I/O
CN304-3
I/O
CN304-4
I/O
CN304-9
I/O
CN304-8
3．Interface Specifications
Remark (Recommended setting when not in use)
-
-
-
If it is not used, set it to the input port and enable the on-chip
pull-up.
-
-
-
-
-
-
-
-
-
-
Input port when not used
Input port when not used
Built-in pull-up when not in use
Built-in pull-up when not in use
Input port when not used
Input port when not used
Input port when not used
Input port when not used
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Input port when not used
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Input port when not used
Input port when not used
-
-
-
-
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Input port when not used
Input port when not used
Input port when not used
Input port when not used
Built-in pull-up when not in use
Built-in pull-up when not in use
Built-in pull-up when not in use
Page 36 of 53
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