Huawei ME909 Series - Page 14

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.
14
Figure 3-2 Appearance of ME909 series module (without label)
Table 3-1 shows the definitions of pins on the 145-pin signal interface of the ME909
module.
Table 3-1 Definitions of pins on the LGA interface
PIN
No.
Pin Name
I/O
Description
DC Characteristics (V)
Normal
MUX
Min.
Typ.
Max.
1
UART1_TX
-
O
UART1 transmit output
–0.3
1.8
2.1
2
UART1_RTS
-
O
UART1 Ready for
receive
–0.3
1.8
2.1
3
UART1_CTS
-
I
UART1 Clear to Send
–0.3
1.8
2.1
4
UART1_RX
-
I
UART1 receive data
input
–0.3
1.8
2.1
5
PCM_SYNC
-
O
PCM interface sync
–0.3
1.8
2.1
6
PCM_DIN
-
I
PCM interface data in
–0.3
1.8
2.1
7
PCM_DOUT
-
O
PCM interface data out
–0.3
1.8
2.1
8
PCM_CLK
-
O
PCM interface clock
–0.3
1.8
2.1
9
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
10
Reserved
-
-
Reserved, must keep
this pin open
-
-
-
11
WAKEUP_IN
-
I
Host to set the module
into sleep or wake up
the module from sleep.
–0.3
1.8
2.1
12
VBAT
-
P
Power supply input
3.3
3.8
4.2
13
VBAT
-
P
Power supply input
3.3
3.8
4.2