Features:

・ USB2.0 Full Speed host I/F function contained.
・ SD card I/F function contained.
・ I²C format I/F function contained.
・ Protocol conversion from I²C to USB HID or from USB HID to I²C. *1
・ MP3 encode function contained. *2,*3,*10
・ MP3 decode function contained. *4
・ WMA decode function contained. *5
・ AAC decode function contained. *6,*7
・ WAV format file playing function contained. *7
・ Sample Rate Converter contained. *8
・ System Controller contained.
・ FAT analysis function contained.
・ CD-ROM I/F function and CD-ROM decoder function contained.
・ Browsing function of File Names, Folder Names on music playing contained.
・ ID3TAG and WMATAG and AACTAG Analysis.
・ Fast forward/backward playing function contained.
・ Resume function contained.
・ File data Reading/Writing function contained.
・ Program download function from external serial Flash ROM contained.
・ Audio DAC and Sound Effect function contained.
・ Digital Audio Out function contained. *9
・ Regulator for internal CORE power supply contained.