Research of USB controller IP core based on MicroBlaze

USB2.0 controller has implemented communication among host machine and memory by using transceiver and device controller. In the design, an SOPC(System on Programmable Chip) system is built by Virtex-II Pro FPGA(Field Programmable Gate Array); MicroBlaze soft core in FPGA is used as control unit and CY7C68001 SX2™ USB 2.0 interface device is used as a transceiver communicating with host machine. It designs an USB device controller IP(Intellectual Property) core according to OPB(on-chip peripheral bus) regulation and implements an integrated USB communication system. This design mainly contains the following aspects: firstly build a system on chip which is based on MicroBlaze soft core; Secondly, it designs the USB controller IP core, which shall conform to OPB bus interface; Write IP core control procedures; Finally, verify the performance of system by writing program of driver and application on PC.