This part is a kind of semiconductor called RK3188.
Function of this product has Development board user manual.
Manufacturers : Rockchip
Image and pinout :
Some of the text within the PDF file :
福州瑞芯微电子有限公司 RK3188 开发板使用手册 v1.0 一. 二. 三. 四. 五. 六. 七. 八. 安装 RockUsb 驱动 .............................................................................................................. 2 查看串口输出信息............................................................................................................... 5 烧写/下载固件...................................................................................................................... 8 Kernel 开发 ......................................................................................................................... 11 Android 开发 ...................................................................................................................... 12 �� [ ... ]