Wakeup_In Signal - Huawei MU509 Series Hardware Manual

HUAWEI MU509 Series HSDPA LGA Module
Hardware Guide
Figure 3-12 LED Typical Electro-Optical Characteristics Curves

3.4.4 WAKEUP_IN Signal

The DTE controls the sleep and wakeup status of the MU509 module through the
WAKEUP_IN signal. The DTE can control the MU509 module to enter forced sleep
status in following two cases:
1.
2.
If the level status of the WAKEUP_IN signal changes from low to high when the
MU509 module is in forced sleep status, the MU509 module will exit from forced sleep
status.
Figure 3-13 WAKEUP_IN sequence
the MU509 module status
Issue 09 (2014-03-06)
Before MU509 module is powered on, if the WAKEUP_IN pin carries a low-level
voltage, MU509 module is allowed to enter forced sleep status after MU509
module is powered on.
After MU509 module is powered on, if WAKEUP_IN pin's level status changes
from high to low (that is, the pin level is in falling edge), MU509 module is allowed
to enter forced sleep status.
WAKEUP_IN
Before power on
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Description of the Application Interfaces
Rising edge
High
Low
Normal status
Forced sl eep stat us
Power on
Falling edge
Low
Forced sl eep stat us
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