EZUSB initialization

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cross mob
Anonymous
Not applicable
        I am new to EZUSB. I have a FX2 chip, that I am trying to enumerate as a HID device.   
Before I start with the USB enumeration, can some one tell me what registers have to be initialized in the 8051?   
I was thinking - IE0 (enable global interrupt), IP(not sure). I am not using any timers at the moment, so I don't have to initialize any timer registers.   
Any USB registers need initializing?   
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