Renesas RA Family
FPB-RA4E1 v1 – User's Manual
R20UT4958EG0100 Rev 1.00
Page 15 of 23
Sep.07.21
Note: Exercise caution while modifying power source trace jumpers, E1 and E2. Permanent damage
to the FPB-RA4E1 board and/or connected modules may result.
Figure 10. Pmod 1 Solder Bridge and Trace Cut Jumpers
5.3.1.2 Pmod 2
A 12-pin right angle connector can be fitted at PMOD2. A suitable part is Samtec SSW-106-02-T-D-RA. 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 su3.3 V devices. Please ensure that any Pmod device installed is compatible
with a +3.3 V supply.
Table 6. Pmod 2 Connector
Pmod 2 Connector
FPB-RA4E1
Pin
Description
Signal/Bus
PMOD2-1
SS / CTS
P301 (SS9/CTS9)
PMOD2-2
MOSI / TXD
P109 (MOSI9/TXD9)
PMOD2-3
MISO / RXD
P110 (MISO9/RXD9)
PMOD2-4
SCK
P111 (SCK9)
PMOD2-5
GND
GND
PMOD2-6
VCC
+3.3 V
PMOD2-7
GPIO / INT (slave to master)
P304 (IRQ9)
PMOD2-8
GPIO / RESET (master to slave)
P112
PMOD2-9
GPIO / CS2
P410
PMOD2-10
GPIO / CS3
P303
PMOD2-11
GND
GND
PMOD2-12
VCC
+3.3 V
Figure 11. Pmod 2
Pin 1
Pin 7
Pin 6
Pin 12
