Renesas EK-RA4M3

Renesas RA Family EK-RA4M3 v1 – User's Manual
R20UT4803EG0101 Rev 1.01 Page 18 of 29
Jan.06.21 Nov.09.20
5.3.2 SparkFun
®
Qwiic
®
Connector
A 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 shared with Grove 1.)
Table 12. Qwiic Connector
Qwiic Connector
EK-RA4M3
Pin
Description
Signal/Bus
J30-1
GND
GND
J30-2
VCC
+3.3V
J30-3
SDA
P511 (SDA1)
J30-4
SCL
P512 (SCL1)
5.3.3 Digilent Pmod™ Connectors
5.3.3.1 Pmod 1
A 12-pin Pmod Type-2A (expanded SPI) and Type-3A (expanded UART) connector is provided at J26, Pmod
1. 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.
Table 13. Pmod 1 Connector
Pmod 1 Connector Default
EK-RA4M3
Pmod 1
Configuration
Pin
Description
Option
Type 6A
Signal/Bus
Short
Open
J26-1
SS / CTS
NC / INT
P206 (SSLA1/CTS9/IRQ0-DS)
J26-2
MOSI / TXD
NC / RESET
P203 (MOSIA/TXD9 )
J26-3
MISO / RXD
P202 (MISOA/RXD9)
E14
E18
SCL
P512 (SCL1)
E18
E14
J26-4
SCK
P204 (RSPCKA/SCK9)
E15
E19
SDA
P511 (SDA1)
E19
E15
J26-5
GND
GND
J26-6
VCC
+3.3 V
E16
E17
+5.0 V
E17
E16
J26-7
GPIO / INT (slave to master)
P008 (IRQ12-DS)
J26-8
GPIO / RESET (master to slave)
P311 (RESET)
J26-9
GPIO / CS2
P207 (SSLA2)
J26-10
GPIO / CS3
P302 (SSLA3)
J26-11
GND
GND
J26-12
VCC
+3.3 V
E16
E17
+5.0 V
E17
E16
Figure 11. Pmod 1