Renesas RA2 Series Engineering Manual

Renesas VUI Reference Solution VOICE-RA2L1 Engineering Manual
VOICE-RA2L1 Engineering Manual Rev.1.0 Page
9
of 14
June 2022
P409
JLOB VCOM RXD
P500
LED1, user LED, red color
8. Implementation Details
One PMOD type 2A/3A/6A connectors (2x6 pin, dual row, right angle socket) is included. If the RA2L1 SCI9
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 4. PMOD Port Assignments (J15)
MCU Port
PMOD Type
2A Signal
(SPI)
PMOD Type
3A Signal
(UART)
PMOD Type
6A Signal
(I2C)
PMOD connector Pin
P301
SPI_SS
1
P109
MOSI
TXD
2
P110
MISO
RXD
SCL
3
P111
SPI_SLK
SDA(P109)
4
GND
GND
GND
5
+3.3V
+3.3V
+3.3V
6
P302
INT
INT
INT
7
P206
GPIO
GPIO
GPIO
8
P207
GPIO
GPIO
GPIO
9
P208
GPIO
GPIO
GPIO
10
GND
GND
GND
11
+3.3V
+3.3V
+3.3V
12
Figure 4. PMOD connector
8.1 Microphones
This board includes a pair of analog MEMS microphones (M2 & M3, ZillTek ZTS6053). These 2 analog
microphone signals are amplified by Renesas READ2302GSP OPAMP, then fed to RA2L1 ADC channels 0
& 1. One digital I2S MEMS microphone (M1, ZillTek ZTS6672) is also provided, which is connected to
RA2L1 SPI0 channels. The physical distance between the 2 analog microphones is 50mm for support
beamforming applications.
Table 5. Analog MEMS Microphone left channel (M2) Port Assignments
MCU Port
MEMS microphone Pin
P000
1 – OUT
2 – GND
3 – GND
4 – GND
5 – VDD

Renesas RA2 Series Specifications

General

Brand	Renesas
Model	RA2 Series
Category	Motherboard
Language	English