Product Info

LTE Module Series
EG21-G MINIPCIE Hardware Design
EG21-G_MINIPCIE_Hardware_Design 16 / 48
DTE’s TX.
12
UIM_CLK
USIM_CLK
DO
Clock signal of (U)SIM card
13
REFCLK+
UART_TX
DO
UART transmit data
Connect to
DTE’s RX.
14
UIM_RESET
USIM_RST
DO
Reset signal of (U)SIM card
15
GND
GND
Mini card ground
16
UIM_VPP
RESERVED
Reserved
17
RESERVED
RI
DO
Output signal to wake up
the host.
18
GND
GND
Mini card ground
19
RESERVED
RESERVED
Reserved
20
W_DISABLE#
W_DISABLE#
DI
Airplane mode control
Pull-up by
default.
Active low.
21
GND
GND
Mini card ground
22
PERST#
PERST#
DI
Fundamental reset signal
Pull-up by
default.
Active low
23
PERn0
UART_CTS
DI
UART clear to send
Connect to
DTE’s
RTS.
24
3.3Vaux
RESERVED
Reserved
25
PERp0
UART_RTS
DO
UART request to send
Connect to
DTE’s CTS
26
GND
GND
Mini card ground
27
GND
GND
Mini card ground
28
1.5V
NC
Not connected
29
GND
GND
Mini card ground
30
SMB_CLK
I2C_SCL
DO
I2C serial clock
Require
external
pull-up to
1.8V.
31
PETn0
DTR
DI
Sleep mode control
32
SMB_DATA
I2C_SDA
IO
I2C serial data
Require