Smart Module Series
SC20_Series_Hardware_Design 6 / 133
Contents
Safety Information ....................................................................................................................................... 3
About the Document ................................................................................................................................... 4
Contents ....................................................................................................................................................... 6
Table Index ................................................................................................................................................... 9
Figure Index ............................................................................................................................................... 11
1
Introduction ........................................................................................................................................ 13
2
Product Overview .............................................................................................................................. 14
2.1.
General Description ................................................................................................................. 14
2.2.
Key Features ........................................................................................................................... 17
2.3.
Functional Diagram ................................................................................................................. 20
2.4.
EVB .......................................................................................................................................... 21
3
Application Interfaces ....................................................................................................................... 22
3.1.
General Description ................................................................................................................. 22
3.2.
Pin Assignment ........................................................................................................................ 23
3.3.
Pin Description ......................................................................................................................... 24
3.4.
Power Supply ........................................................................................................................... 34
3.4.1.
Power Supply Pins ......................................................................................................... 34
3.4.2.
Voltage Stability Requirements ...................................................................................... 34
3.4.3.
Reference Design for Power Supply .............................................................................. 36
3.5.
Turn on and off Scenarios ....................................................................................................... 36
3.5.1.
Turn on with PWRKEY ................................................................................................... 36
3.5.2.
Turn off ........................................................................................................................... 38
3.6.
VRTC Interface ........................................................................................................................ 39
3.7.
Power Output ........................................................................................................................... 40
3.8.
Battery Charging and Management ........................................................................................ 40
3.9.
USB Interface .......................................................................................................................... 42
3.10.
UART Interfaces ...................................................................................................................... 44
3.11.
(U)SIM Interfaces..................................................................................................................... 46
3.12.
SD Card Interface .................................................................................................................... 48
3.13.
GPIO Interfaces ....................................................................................................................... 50
3.14.
SPI Interface ............................................................................................................................ 52
3.15.
I2C Interfaces .......................................................................................................................... 53
3.16.
ADC Interfaces ........................................................................................................................ 54
3.17.
Motor Drive Interface ............................................................................................................... 54
3.18.
LCM Interface .......................................................................................................................... 55
3.19.
Touch Panel Interface .............................................................................................................. 58
3.20.
Camera Interfaces ................................................................................................................... 59
3.20.1.
Rear Camera Interface................................................................................................... 59
3.20.2.
Front Camera Interface .................................................................................................. 60
3.20.3.
Design Considerations ................................................................................................... 62
