The USB20SR is a USB 2.0 USB IF high-speed certified device IP Core. The core is RAM based with 32-bit Avalon interface and supports ULPI interface and software based enumeration. It supports both High Speed (480 Mbps) and Full Speed (12 Mbps) functionality. alongwith three preconfigured endpoints Control, IN, and OUT. It can be configurable for up to 15 IN/OUT endpoints on customer request on chargeable basis. Each configurable endpoint has an endpoint controller that supports interrupt, bulk, and isochronous transfers. The core has been optimized for Altera FPGAs and its functionality has been verified on the hardware with Altera Quartus II. The package includes ModelSim precompiled library for core simulation and verification.