Input Signal Control Pins - Huawei MC509 Series Hardware Manual

HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Table 3-3 Pins on the signal control interface
Pin
Pin Name
No.
81 POWER_ON_OFF
100 RESIN_N
91 LED_STATUS
101 LED_MODE
11 WAKEUP_IN
71 WAKEUP_OUT
45 W_DISABLE

3.4.2 Input Signal Control Pins

The MC509 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 MC509
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 3s 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 100 ms to reset the hardware.
Issue 02 (2013-05-06)
I/O Description
I Pin for controlling power-on and
power-off
I Pin for resetting the hardware
O Pin for network status LED
O Pin for network mode LED
I H: DTE wakeup MC509.
L: DTE set MC509 to sleep
mode.
O
L: default
H: MC509 keeps 1 second high
level to wakeup DTE (e.g.
SMS&VOICE incoming)
I Close wireless communications
It is recommended that use resistance of 0 Ω in the DTE to isolate signals transmitted from
above pins in Table 3-3 .
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
DC Characteristics (V)
Min. Typ.
- Pulled up on
chip
–0.3
1.8
- -
- -
–0.3
2.6
–0.3
2.6
–0.3
2.6
Max.
-
2.1
-
-
2.9
2.9
2.9
25