Data Sheet

THUNDERCOMM TurboX™ C40x SoM Datasheet
25
Figure 3-2 Audio
One port Serial low-power interchip media bus (SLIMBUS) interface is dedicate for external codec IC, which can
build system’s audio functions.
SLIMBUS Interface
Pin Name
PIN Location
Voltage
Type
Description
Notes
LPI_GPIO_2
33
1.8V
DO
Audio SLIMBUS clock
LPI_GPIO_3
34
1.8V
IO
Audio SLIMBUS data0
LPI_GPIO_4
35
1.8V
IO
Audio SLIMBUS data1
Table 3-5 Audio interface definition
Six ports inter-IC sound (I2S) interfaces can connect audio devices.
I2S Interface
Pin Name
PIN Location
Voltage
Type
Description
Notes
GPIO_87
110
1.8V
DO
I2S 1 SCK
GPIO_88
109
1.8V
DO
I2S 1 WS
GPIO_89
108
1.8V
IO
I2S 1 Data0
GPIO_90
107
1.8V
IO
I2S 1 Data1
GPIO_91
106
1.8V
IO
I2S 1 Data2
GPIO_92
105
1.8V
IO
I2S 1 Data3
GPIO_93
104
1.8V
IO
I2S 1 Data4
GPIO_94
103
1.8V
IO
I2S 1 Data5
GPIO_95
102
1.8V
IO
I2S 1 Data6
GPIO_96
101
1.8V
IO
I2S 1 Data7
GPIO_97
43
1.8V
DO
I2S 2 SCK
GPIO_98
44
1.8V
DO
I2S 2 WS
GPIO_99
45
1.8V
IO
I2S 2 Data0
GPIO_100
46
1.8V
IO
I2S 2 Data1
GPIO_101
47
1.8V
IO
I2S 2 Data2
GPIO_102
48
1.8V
IO
I2S 2 Data3
GPIO_104
E15
1.8V
DO
I2S 3A SCK
GPIO_105
E16
1.8V
DO
I2S 3A WS
GPIO_106
E17
1.8V
IO
I2S 3A Data0
C40x SoM
QCS40x
Low power audio core
GPIO configurations
SLIMBUS
I2S
SWR
DMIC