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CPX4 AC-PLC Evaluation Kit M02D2 RTK0EE0009D02001BJ
3.2.2 LED (LED301, LED302)
LED301, LED302 are LEDs that can be used when developing applications for MCU (RX651).
3.2.3 MCU(RX651) General-purpose DIP-switch (SW301, SW302)
These are the DIP SWs (SW301, SW302) with the terminal connections of the MCU (RX651) shown in Table 3-19.
SW301 and SW302 are SWs that can be used when developing applications for MCU (RX651). When the switch is on,
the signal level of the MCU (RX651) is LOW, and when the switch is off, the signal level is HIGH.
(Since there is no pull-up resistor on the MCU board, enable the on-chip pull-up function of RX651.)
3.2.4 JP for program write setting (JP301)
For JP301, the setting varies depending on the program writing method. For details, see chapters 3.2.6 and 3.2.7.
3.2.5 AC-PLC board-connection connector (CN303/CN304)
Table 3-10 and Table 3-11 show the connection with the AC-PLC board.
Terminal
number
Terminal
number
R30UZ0165EJ0100 Rev.1.00
July 01, 2021
Table 3-10 CN303 connectors
Terminal
name
1
CPX_RESB
2
GND
3
RXD_MCU
4
GND
5
TXD_MCU
6
GND
7
RESOUT
8
GND
9
3.3V
10
3.3V
Table 3-11 CN304 connectors
Terminal
name
1
UART_RXD
2
UART_TXD
3
S_SPI_SC
4
SPI_SS_C
5
SPI_REQ
6
S_CKOUT
7
GND
8
BOOT0
9
BOOT1
10
3.3V
Function
Connected to RX651 - P54
Connected to GND
Connected to RX651 - P21/RXD0
Connected to GND
Connected to RX651 - P20/TXD0
Connected to GND
Connected to RX651 - RES#
Connected to GND
3.3V power supply to MCU board
3.3V power supply to MCU board
Function
Connected to RX651 - UB/PC7/TXD10
Connected to RX651 - PC6/RXD10
Connected to RX651 - PC5/SCK10
Connected to RX651 - PC4/SS10
Connected to RX651 - PC1/IRQ12
Connected to RX651 - EXTAL/P36
Connected to GND
Connected to RX651 - PC2/RXD5
Connected to RX651 - PC3/TXD5
3.3V power supply to MCU board
3．Interface Specifications
Page 32 of 53
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