43
3. Details of hardware
MB86R11
Evaluation Board
MB86R11EVB Hardware Manual
3.3.2.
I2S (AUDIO)
The Option board has 3 channels as an audio interface.
This interface is connected to audio mini-jack and the general-purpose pin header for the connection of the
microphone and the speaker.
Table 3-42 I2S (AUDIO)
No.
Item
Model number
Manufacturer
Quantity
Remarks
1 Audio
CODEC
WM8976
Wolfson
1
2 Audio
mini-jack
STX-2500-3N
KYCON
2
φ
3.5
3
Audio speaker
FFC-2ASM1
HONDA TSUSHIN
1
1 row, 2 poles
4 General-purpose
pin
header
OQW-11-4.2-04PW
Mac8
2
2 rows, 8 poles
Table 3-43 I2S2 / 3 connector
No
Signal name
I/O
Description
1 GND
- Ground
2 GND
- Ground
3 ECLK
I
4 SCK
B
5 WS
B
6 SDI
I
7 SDO
O
8 GND
- Ground
(Remark) The physical pin assignment is the same as the general-purpose pin header.
Table 3-44 I2S1/ I2S2/ I2S3 connector list
No
Function
CH
Description
1 Microphone
1 CN4 pin jack
2
1 CN5 pin jack
3
Speaker
1 CN39 pin header
1Pin: Rch
2Pin: Lch
4 Pin
header
2 CN19
5 Pin
header
3 CN21