Serial Communication; Reset Circuit; Led - Renesas RA Series User Manual

Renesas RA Family
The connection for CPU board and inverter board is shown in Figure 5-2. Please refer to 4.6.2 for the power
supply method.
(1) CPU board + INV board
(connected with CN1, CN2）
5.1.6

Serial communication

For serial communication using Renesas Motor Workbench, the CPU board has SCI connector. Pin
assignment for SCI connector is listed in Table 5-5.
5.1.7

Reset circuit

This product has a reset circuit to enable power-on reset or external reset on MCU. Push the tact switch
(SW1) to externally reset MCU.
5.1.8

LED

This product has 4 controllable LEDs, so that they can be used for program debug and the system. LED
switches "ON" when output from the corresponding port is "LOW" and switches "OFF" when output is
"HIGH". Pin assignment for corresponding LEDs is listed in Table 5-6.
R12UZ0134EJ0100 Rev 1.00
Jan 23, 2024
(2) CPU board + INV board
(Connected with CN3, CN4)
Figure 5-2 Connection for CPU board and inverter board
Table 5-5 SCI connector (CN8) pin assignment
Pin No. Pin Function
1 GND
2 MCU RXD
3 MCU TXD
4 VCC
MCB-RA8T1 User's Manual
(3) CPU board + INV board x2
RA8T1 Connection Pin
-
P715/RXD4
P714/TXD4
-
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