8 USB interface
Main Concept IC has integrated 2 USB 2.0 interface. One of them is used for ethernet
function, the other one is used for USB connectivity for last user. Last user can play video,
picture and audio files. Also digital channels can be record to external storage device by
this interface. All SW files can be updated with interface.
USB circuit has 3 main parts
• Integrated USB 2.0 Host interface of D3K (U5)
• Protection IC (U145)
• Over current protection IC (U8)
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