File list (Check if you may need any files):
usb20
.....\doc
.....\...\README.txt
.....\...\STATUS.txt
.....\...\usb_doc.pdf
.....\rtl
.....\...\usbf_crc16.v
.....\...\usbf_crc5.v
.....\...\usbf_defines.v
.....\...\usbf_ep_rf.v
.....\...\usbf_ep_rf_dummy.v
.....\...\usbf_idma.v
.....\...\usbf_mem_arb.v
.....\...\usbf_pa.v
.....\...\usbf_pd.v
.....\...\usbf_pe.v
.....\...\usbf_pl.v
.....\...\usbf_rf.v
.....\...\usbf_top.v
.....\...\usbf_utmi_if.v
.....\...\usbf_utmi_ls.v
.....\...\usbf_wb.v
.....\testbench