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USB2.x HOST IIP

Overview

USB2.x Host interface provides full support for the USB2.x synchronous serial interface, compatible with USB 2.0 specification. Through its USB2.x compatibility, it provides a simple interface to a wide range of low-cost devices. USB2.x Host IIP is proven in FPGA environment. The host interface of the USB2.x Host can be simple interface or can be AMBA AHB, AMBA AXI, VCI, OCP, Avalon, PLB, Tilelink, Wishbone or Custom protocol.

USB2.x HOST IIP is supported natively in Verilog and VHDL

Key Features

  • Compliant with USB 2.0 specification.
  • Compliant with USB 2.0 Enhanced Host Controller Interface (EHCI) Rev 1.0
    • Asynchronous Park-mode
    • Three caching models: no caching, micro-frame caching and frame caching
    • NAK counter to limit unnecessary memory accesses
    • Descriptor and data pre-fetch, pre-compute and cache
  • Supports UTMI and ULPI transceivers.
  • Operates at High-speed (480 Mbps), Full-speed (12 Mbps) and Low-speed (1.5 Mbps).
  • Attach/detach, reset signaling and suspend/resume.
  • Enumeration of low-speed, full-speed, and high-speed devices.
  • All USB 1.1 transfer types are supported.
  • Supports Interrupt/Bulk/Isochronous/Control Transfers.
  • CRC16 checking and generation for HS/FS/LS data packets.
  • CRC5 generation and checking for Tokens.
  • Supports Split Transfers for FS/LS devices connected to HS Hubs while operating in Embedded Host Mode.
  • Supports preamble for LS transfers while operating in Embedded Host Mode.
  • Supports Protocol Layer Error Handling.
  • Provides prioritized scheduling for periodic endpoints.
  • Separate round robin scheduling algorithm within Periodic and Non-periodic endpoints pipes.
  • Supports USB Suspend state and supports remote wakeup devices.
  • Supports all HS/FS USB Link Power Management States – L1, L2.
  • Supports system low power and related system states such as Sleep, Hibernate, Warm/ Cold boot etc.
  • Support for clock gating and multi-power-well support
  • DMA interface with configurable burst length supporting high-speed data transfers between USB Host and AXI/AHB/APB/OCP host.
  • Direct addressing of all IP Core registers from AXI/AHB/APB or OCP bus.
  • Fully synthesizable.
  • Static synchronous design.
  • Positive edge clocking and no internal tri-states.
  • Scan test ready.
  • Simple interface allows easy connection to microprocessor/microcontroller devices
  • This core achieves ASIL B and can be made to achieve ASIL D as per ISO26262

Benefits

  • Single Site license option is provided to companies designing in a single site.
  • Multi Sites license option is provided to companies designing in multiple sites.
  • Single Design license allows implementation of the IP Core in a single FPGA bitstream and ASIC.
  • Unlimited Designs, license allows implementation of the IP Core in unlimited number of FPGA bitstreams and ASIC designs.

Block Diagram

USB2.x HOST IIP Block Diagram

Deliverables

  • The USB2.x Host interface is available in Source and netlist products.
  • The Source product is delivered in verilog. If needed VHDL, SystemC code can also be provided.
  • Easy to use Verilog Test Environment with Verilog Testcases
  • Lint, CDC, Synthesis, Simulation Scripts with waiver files
  • IP-XACT RDL generated address map
  • Firmware code and Linux driver package
  • Documentation contains User's Guide and Release notes.
  • ISO26262 Safety Manual (SAM) Document
  • ISO26262 Failure Modes, Effects and Diagnostics Analysis (FMEDA) Document

Technical Specifications

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