Signal Control Interface; Overview - Huawei ME909s Series Hardware Manual

HUAWEI ME909s Series LTE Mini PCIe Module
Hardware Guide
Parameter
T
off
T
on

3.4 Signal Control Interface

3.4.1 Overview

The signal control part of the interface in the ME909s Mini PCIe module consists of
the following:




Table 3-3 lists the pins on the signal control interface.
Table 3-3 Definitions of the pins on the signal control interface
Pin Pin Name
No.
1 WAKE#
7 WAKEUP_I
N
22 RESIN_N
Issue 02 (2016-09-07)
Remarks
Power off time
Power on time
The rising time of VCC_3V3 should be 100 µs at least.
WAKE# signal
WAKEUP_IN signal
RESIN_N signal
LED_WWAN# signal
Pad Description
Type
O Open collector
active low signal.
This signal is
used to wake up
the host.
I Sleep
authorization
signal.
H: Sleep mode is
disabled.
L: Sleep mode is
enabled (default
value).
I Reset module
Active-low
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Description of the Application Interfaces
Time
>100
<10
Parameter Min. Typ.
(V) (V)
V 0 -
OL
V 1.17 1.8
IH
–0.3
V -
IL
V 0 0
IL
V 1.62 1.8
IH
Unit
ms
ms
Max. Comment
(V)
0.45 -
1.98 -
0.63 -
0.18 The signal is
internally
1.98 pulled up.
19