REL0.1
Page 33 of 52
Snapdragon 820 SMARC SOM Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin
No.
SMARC Edge
Connector Pin Name
Signal Name
CPU Ball Name/
Pin Number
Signal Type/
Termination
Description
Note: Optionally connected
to PCIE2_REFCLK_P
S85
PCIE_B_REFCK-
NC
NA
NA
NC
Note: Optionally connected
to PCIE2_REFCLK_M
S86
GND
GND
NA
Power
Ground.
S87
PC
NC
NA
NA
NC
Note: Optionally connected
to PCIE2_RX_P
S88
PCIE_B_RX-
NC
NA
NA
NC
Note: Optionally connected
to PCIE2_RX_M
S89
GND
GND
NA
Power
Ground.
S90
PC
NC
NA
NA
NC
Note: Optionally connected
to PCIE2_TX_P
S91
PCIE_B_TX-
NC
NA
NA
NC
Note: Optionally connected
to PCIE2_TX_M
S92
GND
GND
NA
Power
Ground.
S93
DP
NC
NA
NA
NA
S94
DP0_LANE0-
NC
NA
NA
NA
S95
DP0_AUX_SEL
NC
NA
NA
NA
S96
DP
NC
NA
NA
NA
S97
DP0_LANE1-
NC
NA
NA
NA
S98
DP0_HPD
NC
NA
NA
NA
S99
DP
NC
NA
NA
NA
S100 DP0_LANE2-
NC
NA
NA
NA
S101 GND
GND
NA
Power
Ground.
S102 DP
NC
NA
NA
NA
S103 DP0_LANE3-
NC
NA
NA
NA
S104 USB3_OTG_ID
NC
NA
NA
NA
S105
NC
NA
NA
NA
S106 DP0_AUX-
NC
NA
NA
NA
S107 LCD1_BKLT_EN
LCD1_BKLT_EN(
GPIO_117)
GPIO_117/
BC49
O, 1.8V CMOS LCD1 Backlight Enable
S108
L /
e /
D
MIPI_DSI1_CLK_
P
MIPI_DSI1_CLK_P/
BE31
O, DIFF
MIPI DSI1 differential clock
positive
S109
LVDS1_CK- /
eDP1_AUX- /
DSI1_CLK-
MIPI_DSI1_CLK_
N
MIPI_DSI1_CLK_N/
BF32
O, DIFF
MIPI DSI1 differential clock
negative