Renesas RA4M2

Renesas RA Family EK-RA4M2 v1 – User's Manual
R20UT4815EG0100 Rev 1.00 Page 20 of 30
Jan.04.21
5.3.3.2 Pmod 2
A 12-pin Pmod type-2A connector is provided at J25, Pmod 2. The RA MCU acts as the SPI master, and the
connected module acts as an SPI slave device. This interface may additionally be re-configured in firmware
as several other Pmod types.
This Pmod interface supports +3.3 V devices. Please ensure that any Pmod device installed is compatible
with a +3.3 V supply.
Table 14. Pmod 2 Connector
Pmod 2 Connector
EK-RA4M2
Pin
Description
Signal/Bus
J25-1
SS / CTS
P413 (SS0/CTS0)
J25-2
MOSI / TXD
P411 (MOSI0/TXD0)
J25-3
MISO / RXD
P410 (MISO0/RXD0)
J25-4
SCK
P412 (SCK0)
J25-5
GND
GND
J25-6
VCC
+3.3 V
J25-7
GPIO / INT (slave to master)
P414 (IRQ9)
J25-8
GPIO / RESET (master to slave)
P608
J25-9
GPIO / CS2
P609
J25-10
GPIO / CS3
P610
J25-11
GND
GND
J25-12
VCC
+3.3 V
Figure 13. Pmod 2
5.3.4 Arduino™ Connector
Near the center of the System Control and Ecosystem Access area is an Arduino Uno R3 compatible
connector interface.
Table 15. Arduino Uno Connections
Arduino Compatible Connector
EK-RA4M2
Pin
Description
Signal/Bus
J18-1
NC
NC
J18-2
IOREF
+3.3V
J18-3
RESET
P115
J18-4
3.3 V
+3.3V
J18-5
5 V
+5 V
J18-6
GND
GND
J18-7
GND
GND
J18-8
VIN
NC
J19-1
A0
P000 (AN000)
J19-2
A1
P001 (AN001)
Pin 1
Pin 7
Pin 6
Pin 12