Table of Contents
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Contents
Safety Information ....................................................................................................................................... 3
About the Document ................................................................................................................................... 4
Contents ....................................................................................................................................................... 5
Table Index ................................................................................................................................................... 7
Figure Index ................................................................................................................................................. 9
1
Introduction ........................................................................................................................................ 10
1.1.
Special Mark ............................................................................................................................. 13
2
Product Concept ................................................................................................................................ 14
2.1.
General Description .................................................................................................................. 14
2.2.
Key Features ............................................................................................................................. 15
2.3.
Functional Diagram ................................................................................................................... 17
2.4.
Evaluation Board ....................................................................................................................... 18
3
Application Interfaces ....................................................................................................................... 19
3.1.
Pin Assignment ......................................................................................................................... 20
3.2.
Pin Description .......................................................................................................................... 21
3.3.
Operating Modes ....................................................................................................................... 27
3.4.
Power Saving ............................................................................................................................ 28
3.4.1.
Airplane Mode ................................................................................................................ 28
3.4.2.
Power Saving Mode (PSM)* .......................................................................................... 28
3.4.3.
Extended Idle Mode DRX (e-I-DRX) .............................................................................. 29
3.4.4.
Sleep Mode .................................................................................................................... 29
3.4.4.1.
3.5.
Power Supply ............................................................................................................................ 30
3.5.1.
Power Supply Pins ......................................................................................................... 30
3.5.2.
Decrease Voltage Drop .................................................................................................. 31
3.6.
Turn on and off Scenarios ......................................................................................................... 32
3.6.1.
Pin Definition of PWRKEY ............................................................................................. 32
3.6.2.
Turn on Module Using PWRKEY ................................................................................... 32
3.6.3.
Turn off Module .............................................................................................................. 34
3.6.3.1.
3.6.3.2.
3.7.
Reset the Module ...................................................................................................................... 35
3.8.
PON_TRIG* .............................................................................................................................. 36
3.9.
(U)SIM Interface ........................................................................................................................ 37
3.10. USB Interface* .......................................................................................................................... 39
3.11. UART Interfaces ........................................................................................................................ 41
3.12. PCM and I2C Interfaces* .......................................................................................................... 44
3.13. Network Status Indication* ........................................................................................................ 45
3.14. STATUS .................................................................................................................................... 46
3.15. Behaviors of MAIN_RI* ............................................................................................................. 46
BG770A-GL_Hardware_Design
UART Application ................................................................................................. 29
Turn off Module through PWRKEY ...................................................................... 34
Turn off Module through AT Command ............................................................... 34
LPWA Module Series
BG770A-GL Hardware Design
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