Renesas RX Family
Communication Board Specification
7.
This section describes the specification of the communication board.
7.1 Functions
7.1.1
Power supply
Power of this product is supplied at 5V from USB connector.
7.1.2
USB communication
This product is equipped with a USB type-C connector for communication with a PC when using Renesas
Motor Workbench, etc.
7.1.3
Serial communication
This board has two SCI connectors for serial communication with the target MCU when using Renesas Motor
Workbench, etc. The pin assignments are shown in Table 7-1 and Table 7-2. When using the communication
cable bundled with this product, use CN5.
The serial communication connector and the MCU (RX72N) are connected via a digital isolator, so the
communication board and the CPU board with the target MCU are isolated.
R12UZ0111EJ0100 Rev 1.00
November 15, 2022
Table 7-1 SCI connector (CN5) pin assignment
Pin No.
Function
Note
1
VCC
2
RXD
Connect to TXD of target MCU
3
TXD
Connect to RXD of target MCU
4
GND
Table 7-2SCI connector (CN4) pin assignment
Pin No.
Function
Note
1
VCC
2
RXD
Connect to TXD of target MCU
3
TXD
Connect to RXD of target MCU
4
GND
MCK-RX26T User's Manual
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