1394b OHCI Link Layer IP Core

The New Wave Design and Verification (New Wave DV) 1394b OHCI core provides a complete IP solution for the OHCI layer of the 1394b AS5643 support protocol.

The 1394b OHCI core includes all functionality needed to meet AS5643 performance specifications, including: Asynchronous Transmit, Isochronous Receive, STOF handling, STOF regulated transmit functions, Self ID, and CRC generation/checking.

At the PHY-Link interface, the 1394b OHCI core is built for connecting to any PHY that implements the defined standard PHY-Link interface. This interface is compatible with the New Wave DV PHY IP 1394b OHCI core as well as discrete PHY Layer integrated circuits.

The 1394b OHCI core is targeted towards applications in aerospace and industrial vision, and has been used on a wide range of parts at varying operating rates. Additionally, the 1394b OHCI core meets AS5643 support protocol, and comes with test-benches and example code, making design integration a straightforward task.

Evaluation versions of the 1394b OHCI IP core, with AS5643 performance protocol are available. In addition, New Wave DV has a set of standard form-factor boards featuring FPGAs, 1394b connectors and transformers, and off-the-shelf reference designs for quick evaluation of the OHCI IP core.

Get This IP Core Pre-Loaded on the Following FPGA Cards:
V1142 (4-Port)     V1144 (12-Port)     V1146 (9-Port)     V5054 (30-Port)


  • AS5643 compliant interface with hardware based STOF offload
  • Supports S100/S200/S400/S800/S1600/S3200 data rates
  • Configurable number of OHCI nodes in a single FPGA
  • AXI-based host interface for embedded or PCIe based processors
  • Standard PHY-Link interface


  • Increase interface port density while reducing interface size and power
  • Increased performance with hardware-based AS5643 offload
  • Additional diagnostics and programmable operation features
  • Leverage proven technology for standard interface implementation


Supported Devices

Xilinx: Virtex, Kintex, Artix FPGAs

Intel (Altera): Stratix, Arria, Cyclone FPGAs Microsemi:

SmartFusion2, Igloo2 FPGAs

Supported Rates


Operating Frequencies

S100: 12.288Mhz

S200: 24.576MHz

S400: 49.152MHz

S800: 98.304Mhz

S1600: 196.608Mhz

S3200: 196.608Mhz (double data width)

Applications App

  • Avionics vehicle and mission systems
  • Industrial/Machine vision systems

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