Input Signal Control Pins - Huawei MU509 Series Hardware Manual

HUAWEI MU509 Series HSDPA LGA Module
Hardware Guide
Table 3-5 Pins on the signal control interface
Pin
No.
81
100
91
101
11
71

3.4.2 Input Signal Control Pins

The MU509 module implements power-on and power-off and resets the hardware
through the input signal control pins.
The power-on, power-off, and reset control parts of the interface of the MU509 module
include power-on/power-off interface signal (POWER_ON_OFF) and the hardware
reset interface signal (RESIN_N).
The POWER_ON_OFF pin is used to implement power-on and power-off. If the
POWER_ON_OFF pin is pulled down for at least 0.5s, the module is powered on; if
the POWER_ON_OFF pin is pulled down for at least 0.5s again, the module is
powered off.
The RESIN_N pin is used to reset the hardware. When the software stops responding,
the RESIN_N pin can be pulled down for at least 10 ms to reset the hardware.
Issue 09 (2014-03-06)
Pin Name
POWER_ON_OFF
RESIN_N
LED_STATUS
LED_MODE
WAKEUP_IN
WAKEUP_OUT
It is recommended to use resistance of 0 Ω in the DTE to isolate signals transmitted from above
pins in Table 3-5 .
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
I/O Description
Pin for controlling
I power-on and
power-off
Pin for resetting
I
the hardware
Pin for network
I
status LED
Pin for network
I
mode LED
Host to set the
module into forced
I sleep or wake up
the module from
forced sleep
Module to wake up
O
the host.
DC Characteristics (V)
Min. Typ. Max.
Pulled up
- -
on chip
–0.3 1.8 2.1
- - -
- - -
–0.3 2.6 2.9
–0.3 2.6 2.9
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