Huawei ME906s LTE M.2 - Page 26

HUAWEI ME906s LTE M.2 Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2019-03-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
26
Do not toggle RESET# during power on sequence, pulling RESET# low will extend
time for module startup. The recommended power on timing sequence is shown as
Figure 3-8 .
Figure 3-8 Recommended power on timing sequence

Power off sequence
Keep Power_On_Off logic low for more than 500 ms to shut off the module.
Figure 3-9 Recommended power off timing sequence (connect to battery)

Warm boot (restart) sequence
In the notebook/tablet when using the warm boot, the followed sequence is
recommended.
3.3V (battery
always on)
RESET#
Power_On_off
Power on
t0 ≥ 0ms
t0
Power off
t1 ≥ 500 ms
t1
Logic low or high-impedance (preferred)
Logic low or high-impedance (preferred)
RESET#
3.3V (battery,
always on)
Power_On_Off