9.2.1.6 PHY Interfaces

The USB controller supports both universal transceiver macrocell interface plus (UTMI+) and universal low pin count interface (ULPI) at the link side. For ULPI interface I/Os are routed through the MSS onto multi standard I/Os (MSIOs) and for UTMI, I/Os are routed through the FPGA fabric. The built-in multiplexer (MUX) and de-multiplexer (DeMUX) logic allows the selection of UTMI or ULPI through the Libero SoC software.