Product Info

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About the Document ................................................................................................................................... 2
Contents
....................................................................................................................................................... 3
Table Index
................................................................................................................................................... 6
Figure Index
................................................................................................................................................. 8
1
Introduction ........................................................................................................................................ 10
1.1.
Safety Information ..................................................................................................................... 11
2 Product Concept ................................................................................................................................ 12
2.1.
General Description .................................................................................................................. 12
2.2.
Key Features ............................................................................................................................. 15
2.3.
Functional Diagram ................................................................................................................... 19
2.4.
Evaluation Board ....................................................................................................................... 20
3 Application Interfaces ....................................................................................................................... 21
3.1.
General Description .................................................................................................................. 21
3.2.
Pin Assignment ......................................................................................................................... 22
3.3.
Pin Description .......................................................................................................................... 23
3.4.
Power Supply ............................................................................................................................ 39
3.4.1.
Power Supply Pins ......................................................................................................... 39
3.4.2.
Decrease Voltage Drop .................................................................................................. 39
3.4.3.
Reference Design for Power Supply .............................................................................. 40
3.5.
Turn on and off Timing .............................................................................................................. 41
3.5.1.
Turn on Module Using the PWRKEY ............................................................................. 41
3.5.2.
Turn off Module .............................................................................................................. 43
3.6.
VRTC Interface ......................................................................................................................... 44
3.7.
Power Output ............................................................................................................................ 45
3.8.
Battery Charge and Management ............................................................................................. 46
3.9.
USB Interface ............................................................................................................................ 48
3.10.
UART Interfaces ........................................................................................................................ 51
3.11.
(U)SIM Interfaces ...................................................................................................................... 53
3.12.
SD Card Interface ..................................................................................................................... 56
3.13.
GPIO Interfaces ........................................................................................................................ 58
3.14.
I2C Interfaces ............................................................................................................................ 61
3.15.
I2S Interface .............................................................................................................................. 62
3.16.
SPI Interfaces ............................................................................................................................ 63
3.17.
ADC Interfaces .......................................................................................................................... 64
3.18.
Vibrator Drive Interface ............................................................................................................. 65
3.19.
LCM Interfaces .......................................................................................................................... 66
3.20.
Touch Panel Interfaces ............................................................................................................. 70
3.21.
Camera Interfaces ..................................................................................................................... 72
3.21.1.
Design Considerations ................................................................................................... 77
3212
Flashlight Interfaces
79