USB 2.0 Device Controller

Overview

The DUSB2 is hardware implementation of full/high-speed peripheral controller that interfaces to the UTMI bus transceiver. The DUSB2 contains the USB PID and address recognition logic, state machines to handle USB packets and transactions, endpoints number recognition logic and endpoints FIFO control logic. The DUSB2 is designed to support 12 Mb/s "Full Speed" (FS) and 480 Mb/s "High Speed" (HS) serial data transmission rates. The design is technology independent and thus can be implemented in a variety of process technologies. This core strictly conforms to the USB Specification v2.0. The DUSB2 core is delivered with fully automated test bench and complete set of tests, allowing easy package validation at each stage of SoC design flow.

Key Features

Full compliance with the USB 2.0 specification
Full-speed 12 Mbps operation
High-speed 480 Mbps operation
Software configurable EP0 control endpoint size 8-64 bytes
Software configurable 15 IN/OUT end-points:

configurable number of endpoints
configurable type of each endpoint: INTERRUPT, BULK or ISOCHRONOUS
configurable direction of each endpoint
configurable size of each endpoint: 8-1024 bytes

Supports UTMI Transceiver Macrocell Interface
Synchronous RAM interface for FIFOs
Suspend and resume power management functions
Simple interface allows easy connection to CPU
Allows operation from a wide range of CPU clock frequencies
Fully synthesizable
Static synchronous design
Positive edge clocking
No internal tri-states
Lite design, small gate count and fast operation
Scan test ready

Applications

Human Interface Devices like keyboards, mouse or game peripherals
Mass Storage devices like flash disk, mp3 or mp4 player
GPS navigation system
Digital Camera
Cellular phone
Audio devices like microphone or speakers
Printer
Scanner

Deliverables

HDL Source Code
Testbench environment

Automatic Simulation macros
Tests with reference responses

Synthesis scripts
Technical documentation
12 months of technical support

Technical Specifications

Availability

now

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