Product Info

LTE Module Series
EG21-G MINIPCIE Hardware Design
EG21-G_MINIPCIE_Hardware_Design 15 / 48
3.2. Pin Description
The following tables show the pin definition and description of EG21-G MINIPCIE on the 52-pin
application.
Table 3: I/O Parameters Definition
Table 4: Pin Description
Type
Description
DI
Digital Input
DO
Digital Output
IO
Bidirectional
OC
Open Collector
PI
Power Input
PO
Power Output
Pin No.
Mini PCI Express
Standard Name
EG21-G MINIPCIE
Pin Name
I/O
Description
Comment
1
WAKE#
WAKE#
OC
Output signal to wake up
the host.
2
3.3Vaux
VCC_3V3
PI
3.3V DC supply
3
RESERVED
RESERVED
2)
Reserved
4
GND
GND
Mini card ground
5
RESERVED
RESERVED
2)
Reserved
6
1.5V
NC
Not connected
7
CLKREQ#
RESERVED
Reserved
8
UIM_PWR
USIM_VDD
PO
Power source for the
(U)SIM card
9
GND
GND
Mini card ground
10
UIM_DATA
USIM_DATA
IO
Data signal of (U)SIM card
11
REFCLK-
UART_RX
DI
UART receive data
Connect to