Renesas VUI Reference Solution
VOICE-RA6E1
Engineering Manual
VOICE-RA6E1 Engineering Manual Rev.1.0
Page 9 of 14
June 2022
P401
Test point 10 (TP10)
P402
User switch(S1)
, also IRQ4
P407
USB VBUS, USB cable connection monitor pin
P408
PMOD SPI MISO / UART RXD / I2C SCL
P409
PMOD SPI MOSI / UART TXD / I2C SDA
P410
PMOD SPICLK
P411
PMOD SPI SS / UART CTS_RTS
P500
LED1, user LED, red color
8. Implementation Details
8.1 QSPI NOR flash
There is one QSPI NOR Flash on board. The device is Dialog AT25SF641B-MHB-T, 64 Mbit (8 Mbyte) in a
8-pad Ultra-Thin DFN (5 x 6 x 0.6mm) package. The QSPI Flash is multiplexed with Digital I2S MEMS
Microphone right channel using J12~J14 pin header. To enable QSPI flash function, please short pins 1-2 on
J12~J14.
Table 4. QSPI Flash Port Assignments
MCU Port
QSPI Signal
QSPI Pin
P100
CLK
6
P112
Chip Select
1
P102
DQ0
5
P101
DQ1
2
P104
DQ2
3
P103
DQ3
7
8.2 PMOD
One PMOD type 2A/3A/6A connectors (2x6 pin, dual row, right angle socket) is included. If the RA6E1 SCI3
has been configured as Simple I2C, please insert a jumper on header J16 to route SDA signal to PMOD
connector pin 4
for meet PMOD 6A pin definition.
Table 5. PMOD Port Assignments (J15)
MCU Port
PMOD Type
2A Signal
PMOD Type
3A Signal
PMOD Type
6A Signal
PMOD connector Pin
P411
CS
CTS_RTS
NC
1
P409
MOSI
TXD
NC
2
P408
MISO
RXD
SCL
3
P410
SCK
SDA
4
GND
GND
GND
5
+3.3V
+3.3V
+3.3V
6
P302
INT
INT
INT
7
P303
GPIO
GPIO
GPIO
8
P304
GPIO
GPIO
GPIO
9
P208
GPIO
GPIO
GPIO
10
GND
GND
GND
11
+3.3V
+3.3V
+3.3V
12
Figure 4. PMOD connector
