User Guide
Table Of Contents
- APPLICABILITY TABLE
- CONTENTS
- 1. Introduction
- 2. General Product Description
- 3. PINS ALLOCATION
- 4. Power Supply
- 5. DIGITAl SECTION
- 6. RF SECTION
- 7. AUDIO SECTION
- 8. GNSS Section
- 9. Mechanical Design
- 10. APPLICATION PCB Design
- 11. PACKAGING
- 12. Conformity Assessment Issues
- 13. PRODUCT AND SAFETY INFORMATION
- 14. GLOSSARY
- 15. Document History
ME910G1 Hardware Design Guide
1VV0301593 Rev.15 Page
46 of 100 2022-08-23
Not Subject to NDA
Fast Shut Down
The procedure to power off ME910G1 described in the Power Off section. It normally takes
more than 1 second to disconnect from the network and make ME910G1 internal
filesystem properly closed.
In case of unwanted supply voltage loss the system can be switched off without any risk
of filesystem data corruption by implementing the Fast Shut Down feature.
Fast Shut Down feature permits to reduce the current consumption and the time-to-
poweroff to minimum values.
Note
: Refer to ME910G1 series AT command reference guide (Fast
shut down - #FASTSHDN) in order to set up detailed AT command.
Fast Shut Down by Hardware
The fast shut down can be triggered by the configuration of any GPIO. Switching from HI
level to LOW level transition of GPIO commands fast shut down.
Example circuit:
Figure 12: example circuit
Note
: Consider the voltage drop under max current conditions when
defining the voltage detector thereshold in order to avoid unwanted
shutdown.