Renesas EK-RA4E2

Renesas RA Family EK-RA4E2 v1 – User's Manual
R20UT5175EG0300 Rev. 3.00 Page 19 of 30
Feb.27.23
Figure 11. Seeed Grove and SparkFun
®
Qwiic Connectors
5.3.2 SparkFun
®
Qwiic Connector
A SparkFun
®
Qwiic connector is provided at J30. The main MCU acts as a two-wire serial master, and a
connected module acts as a two-wire serial slave (data lines are shared with Grove 1 and Grove 2).
Table 13. Qwiic Connector
Qwiic Connector
EK-RA4E2
Pin
Description
Signal/Bus
J30-1
GND
GND
J30-2
VCC
+3.3V
J30-3
SDA
P101 (SDA)
J30-4
SCL
P100 (SCL)
5.3.3 Digilent Pmod™
Connectors
Two 12-pin connectors are provided to support Pmod modules where the RA MCU acts as the master, and
the connected module acts as a slave device.
These interfaces may be configured in firmware to support several Pmod types such as Type-2A (expanded
SPI) and Type-3A (expanded UART).
The EK-RA4E2 board also provides jumpers so the 12-pin connector may alternatively be used for Pmod
Type-6A (I
2
C).
The default 12-pin Pmod interface supports +3.3 V devices. Please ensure that any Pmod device installed is
compatible with a +3.3 V supply.
The Pmod interface option for Type-6A (I
2
C) may also support +5.0 V devices. Please ensure that only 5 V
capable modules are used when this option is selected.
5.3.3.1 Pmod 1
A 12-pin Pmod connector is provided at J26, Pmod 1.
Table 14. Pmod 1 Connector
Pmod 1 Connector Default
EK-RA4E2
Pmod 1 Configuration
Pin
Option
Type-2A (SPI)
Option
Type-3A
(UART)
Option
Type-6A
(I
2
C)
Signal/Bus
Short
Open
J26-1
SS
NC
P301 (SSLA0)
E76
E74, E75
CTS
NC
P303 (CTS9)
E74
E76
J26-2
MOSI
TXD
NC
P109 (MOSIA/TXD9)
J26-3
MISO
RXD
NC
P110 (MISOA/RXD9)
E14
E18
SCL
P100 (SCL)
E18
E14
J26-4
SCK
P111 (RSPCKA)
E15
E19, E75
RTS
P301 (CTS_RTS9)
E75
E15, E19
SDA
P101 (SDA)
E19
E15, E75
J26-5
GND
GND