USB interface The USB (Universal Serial Bus) interface has the following features:
`Full compliance with the Universal Serial Bus Specification Revision
2.0 for Full Speed Mode.
`USB Function Controller with two FIFO-based Endpoints:
One bidirectional Control Endpoint 0 (8 bytes)
One receive Endpoint 1 (1*64 byts)
`The signaling bit rate is 12 Mb/s (Full speed).