CPX4 AC-PLC Evaluation Kit M02D2 RTK0EE0009D02001BJ
3
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Interface Specifications
R30UZ0165EJ0100 Rev.1.00
Page 32 of 53
July 01, 2021
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.
Table 3-10
CN303 connectors
Terminal
number
Terminal
name
Function
1
CPX_RESB
Connected to RX651 - P54
2
GND
Connected to GND
3
RXD_MCU
Connected to RX651 - P21/RXD0
4
GND
Connected to GND
5
TXD_MCU
Connected to RX651 - P20/TXD0
6
GND
Connected to GND
7
RESOUT
Connected to RX651 - RES#
8
GND
Connected to GND
9
3.3V
3.3V power supply to MCU board
10
3.3V
3.3V power supply to MCU board
Table 3-11
CN304 connectors
Terminal
number
Terminal
name
Function
1
UART_RXD
Connected to RX651 - UB/PC7/TXD10
2
UART_TXD
Connected to RX651 - PC6/RXD10
3
S_SPI_SC
Connected to RX651 - PC5/SCK10
4
SPI_SS_C
Connected to RX651 - PC4/SS10
5
SPI_REQ
Connected to RX651 - PC1/IRQ12
6
S_CKOUT
Connected to RX651 - EXTAL/P36
7
GND
Connected to GND
8
BOOT0
Connected to RX651 - PC2/RXD5
9
BOOT1
Connected to RX651 - PC3/TXD5
10
3.3V
3.3V power supply to MCU board
