I am using the LPC4357 USB0 strictly as an USB device. Do I need to connect the USB0_VSSA_TERM, USB0_VSSA_REF, USB0_VDDA3V3, USB0_VDDA3V3_DRIVER and USB0_RREF pins, or are they only used when the UDB is configured as a host or OTG? Or is this part of the built in USB interface electrical test software?
All the reference designs tend to include everything possible, so they have the host and OTG configuration.
The manual is vague about USB0_VDDA3V3 & USB0_VDDA3V3_DRIVER if they are the supply for the whole USB module, or just the host part. A block diagram would help.