User's Manual
LE920 Hardware User Guide
1vv0301026 Rev.8 2015-01-03
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Reserved. Page 22 of 88
PAD
Signal
I/O
Function
Type
COMMENT
AH3
WiFi_SD _DATA2
I/O
Wi-Fi SD Serial Data 2
1.8V
AK3
WiFi_SD _DATA3
I/O
Wi-Fi SD Serial Data 3
1.8V
Y3
WiFi_RST_Ctr
O
Wi-Fi Reset output control / Power enable control
1.8V
Active Low
SIM Card Interface 1
A10
SIMCLK1
O
External SIM signal – Clock
1.8/2.85V
B11
SIMRST1
O
External SIM signal – Reset
1.8/2.85V
B9
SIMIO1
I/O
External SIM signal - Data I/O
1.8/2.85V
B7
SIMIN1
I
External SIM signal - Presence (active low)
1.8V
A8
SIMVCC1
-
External SIM signal – Power supply for the SIM
1.8/2.85V
E8
ESIM_RST
-
Internal eSIM signal – Reset
1.8/2.85V
Analog Audio interface
B5
EAR1_MT+
AO
Earphone signal output1, phase +
Audio
A4
EAR1_MT-
AO
Earphone signal output1, phase -
Audio
B3
MIC1_MT+
AI
Mic signal input1, phase +
Audio
A2
MIC1_MT-
AI
Mic signal input1, phase -
Audio
Digital Voice interface (DVI)
D11
DVI_WA0
O
Digital Voice interface (WA0 master output)
1.8V
C8
DVI_RX
I
Digital Voice interface (RX)
1.8V
D9
DVI_TX
O
Digital Voice interface (TX)
1.8V
C10
DVI_CLK
O
Digital Voice interface (CLK master output)
1.8V
Digital I/O
F9
GPIO_01
I/O
GPIO_01
1.8V
I2C alternate
E10
GPIO_02
I/O
GPIO_02
1.8V
I2C alternate
F11
GPIO_03
I/O
GPIO_03
1.8V
I2C alternate
E12
GPIO_04
I/O
GPIO_04
1.8V
I2C alternate
F13
GPIO_05
I/O
GPIO_05
1.8V
I2C alternate
E14
GPIO_06
I/O
GPIO_06
1.8V
I2C alternate
R18
GPIO_07
I/O
GPIO_07
1.8V
I2C alternate
S19
GPIO_08
I/O
GPIO_08
1.8V
I2C alternate
U19
GPIO_09
I/O
GPIO_09
1.8V
I2C alternate
W19
GPIO_10
I/O
GPIO_10
1.8V
I2C alternate
RF Section
AD1
Antenna
I/O
GSM/EDGE/UMTS/LTE Antenna (50 Ohm)
RF
AU9
ANT_DIV
I
UMTS/LTE Antenna Diversity Input (50 Ohm)
RF
GPS Section
S1
ANT_GPS
I
GPS Antenna (50 Ohm)
RF
V2
GPS_LNA_EN
O
Enable the external regulator for GPS LNA
1.8V
Miscellaneous Function
AP1
RESET#
I
Reset Input
Active Low
AS1
ON_OFF#
I
Input Command for Power ON
Active Low