pITX-iMX8M – User Guide Rev. 1.4
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// 49
6.18.
Internal audio (J9)
Figure 27: Internal Audio Header with 6 pins
Table 36: Pin Assignment
Pin
Function
1
Line-Out Right
2
Audio GND
3
Line-Out Left
4
Line-In Right
5
Microphone In
6
Line-In Left
6.19.
SPI/I2C3 (J26)
Table 37: SPI/I2C Pin Assignment
Pin
Function
Direction
Description
1
I2C3_SCL_3V3
Out
2
GND
3
I2C3_SDA_3V3
In/Out
4
NC
5
QSPI_IO1 (MISO)
In/Out
6
V_3V3_SPI
Power
+3.3V fused power rail,
7
QSPI_CLK
In/Out
8
QSPI_IO0 (MOSI)
In/Out
9
QSPI_CS#
In/Out
10
GND
Ground
1
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