Renesas EK-RA4M3

Renesas RA Family EK-RA4M3 v1 – User's Manual
R20UT4803EG0101 Rev 1.01 Page 17 of 29
Jan.06.21 Nov.09.20
To configure the EK-RA4M3 board to use the Debug Out mode, configure the jumpers according to the
following table.
Table 9. Debug Out Jumper Configuration
Location
Default Open/Closed
Function
J6
Open
No connection to RA MCU
J8
Jumper on pins 2-3
On-board RA MCU is held in RESET
J9
Open
S124 Debug MCU in normal operation mode
J29
All jumpers removed
Disconnects the on-board RA MCU debug signals from the
Debug Interface
5.3 Ecosystem
The System Control and Ecosystem area provides users the option to simultaneously connect several 3
rd
party add-on modules compatible with four most popular ecosystems using the following connectors:
1. Two Seeed Grove
®
system (I2C/Analog) connectors
2. SparkFun
®
Qwiic
®
connector
3. Two Digilent Pmod™ (SPI and UART) connectors
4. Arduino™ (Uno R3) connector
5. MikroElektronika™ mikroBUS connector
5.3.1 Seeed Grove
®
Connectors
5.3.1.1 Grove 1
A Seeed Grove I2C connector is provided at J27. The RA MCU acts as a two-wire serial master, and a
connected module acts as a two-wire serial slave.
Table 10. Grove 1 Connector
Grove 1 Connector
EK-RA4M3
Pin
Description
Signal/Bus
J27-1
SCL
P512 (SCL1)
J27-2
SDA
P511 (SDA1)
J27-3
VCC
+3.3 V
J27-4
GND
GND
5.3.1.2 Grove 2
A Seeed Grove Analog connector is provided at J28.
Table 11. Grove 2 Connector
Grove 2 Connector
EK-RA4M3
Pin
Description
Signal/Bus
J28-1
A0
P505 (AN121)
J28-2
A1
P506 (AN122)
J28-3
VCC
+3.3 V
J28-4
GND
GND
Figure 10. Seeed Grove and Qwiic Connectors