HUAWEI ME909 Series LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Issue V0.3 (2013-05-21)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
18
PIN
No.
Pin Name
I/O Description
DC Characteristics (V)
Normal
MUX
Min.
Typ.
Max.
74
UART0_RTS
-
O
UART0 Ready for
receive
–0.3
1.8
2.1
75
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
76
UART0_TX
-
O
UART0 transmit output
–0.3
1.8
2.1
77
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
78
UART0_RX
-
I
UART0 receive data
input
–0.3
1.8
2.1
79
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
80
UART0_CTS
-
I
UART0 Clear to Send
–0.3
1.8
2.1
81
POWER_ON_OFF -
I
System power-on or
power-off
-
Pulled up
on
module
-
82
NC
-
-
Not connected, please
keep this pin open
-
-
-
83
NC
-
-
Not connected, please
keep this pin open
-
-
-
84
NC
-
-
Not connected, please
keep this pin open
-
-
-
85
USB_DM
-
I/O
USB Data- defined in the
USB 2.0 Specification
-
-
-
86
USB_DP
-
I/O
USB Data+ defined in
the USB 2.0
Specification
-
-
-
87
JTAG_TDI
-
I
JTAG test data input
–0.3
1.8
2.1
88
SIM_RESET
-
O
SIM reset
-
1.8/2.85
-
89
SIM_DATA
-
I/O
SIM data
-
1.8/2.85
-
90
SIM_CLK
-
O
SIM clock
-
1.8/2.85
-
91
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
92
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
93
JTAG_RTCK
-
O
JTAG return clock
–0.3
1.8
2.1