关于USB.SD卡的读取已经存储，方便在usb的读取数据以及将读取的数据存储在sd卡上。-Read on USB.SD card has been stored, easy to read in usb data and read data stored in the sd card.

English datasheet. MVSILICON AU7843 USB HOST MP3 WMA DECODER SOC 2008-7-7 V1.0 LQFP64 highly integrated SOC for MP3/WMA player, AU7843 integrates MCU, MP3/WMA decoder, USB Host controller, SD/MMC card controller, a 16-bit audio decoder and an