REL0.1
Page 39 of 52
Snapdragon 820 SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
21
EXP_HPH_L
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
22
USB3_HUB4_TXM
NA
I, DIFF
USB3.0 Port3 Transmit Negative
Note: Connected to USB Hub
23
GND
NA
Power
Ground.
24
GND
NA
Power
Ground.
25
LINE_OUT1_M
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
26
USB3_HUB4_RXP
NA
I, DIFF
USB3.0 Port3 Receive Positive
Note: Connected to USB Hub
27
LINE_OUT1_P
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
28
USB3_HUB4_RXM
NA
I, DIFF
USB3.0 Port3 Receive Negative
Note: Connected to USB Hub
29
GND
NA
Power
Ground.
30
GND
NA
Power
Ground.
31
EAROM
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
32
AMIC1_INP
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
33
EAROP
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
34
AMIC1_INM
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
35
GND
NA
Power
Ground.
36
GND
NA
Power
Ground.
37
HSDET_L
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
38
AMIC3_INP
NA
NA
NC.
Note: On SOM Audio Codec is not
supported by default
39
GND
NA
Power
Ground.