Renesas RA2 Series Engineering Manual

Renesas VUI Reference Solution VOICE-RA2L1 Engineering Manual
VOICE-RA2L1 Engineering Manual Rev.1.0 Page
10
of 14
June 2022
Table 6. Analog MEMS Microphone right channel (M3) Port Assignments
MCU Port
MEMS microphone Pin
P001
1 – OUT
2 – GND
3 – GND
4 – GND
5 – VDD
Table 7. Digital I2S MEMS Microphone left channel (M1) Port Assignments
MCU Port
SPI0 Signal
MEMS microphone Pin
P401
SSLA0
1 – LRC (Word Select)
GND – for Select as left channel
2 – SELECT
GND
3 – GND
P102
RSPCKA
4 – BCLK
3.3V
5 – VDD
P101
MOSIA
6 – DATA
7 – CONFIG
8.2 Audio out
A stereo headphone jack is connected to the MCU DAC. The DAC signals are connected through an
OPAMP for drive earphone, which is Renesas READ2302GSP, in ultra-small 8 pins TSSOP packages.
Table 8. Headphone Jack Pin Assignments
MCU Port
Audio out Signal
Headphone Jack Pin
P014 (DA0)
VOUT1
1 (Sleeve)
VOUT2
2 (Mono signal)
VOUT2
3 (Mono signal)
8.3 LEDs
3 LED are included on the board and are connected to the MCU I/O. These are Red, Green, and Blue, and
can be used for any user defined functions.
Table 9. User LED Port Assignments
MCU Port
Connected User LED
P500
Red (D2)
P213
Green (D3)
P212
Blue (D4)
D5 (blue) is power LED to indicate 3.3V power, and D8 (Green) is debug status LED to indicate the status of
the JLOB connection.
8.4 Buttons
There are two mechanical push-button switches on the board. One button is for system/MCU reset (S2).
The second button is a user programmable button (S1).
Table 10. User Button Port Assignment (S1)
MCU Port
User Button Interrupt
P400
IRQ0

Renesas RA2 Series Specifications

General

Brand	Renesas
Model	RA2 Series
Category	Motherboard
Language	English