The USB PHY is an UTMI compatible USB2.0 device PHY IP which does not
require external oscillator reference. It is comprised of both USB1.1 and USB2.0
transceivers and it is also comprised of digital logic needed to convert USB serial
data to 8 or 16 bit parallel data.
The IP is an UTMI+ Level 3 compatible USB2.0 OTG function
transceiver IP. It is comprised of both USB1.1 and USB2.0 transceivers; itis
comprised of digital logic needed to convert USB serial data to 8 or 16 bit parallel
data for high speed and full speed. It is also support full speed and low speed
serial mode.