• Host Bus: 1-lane 2.5 Gb/s PCI Express
  • Four independent OHCI 1.1 Compliant FireWire (IEEE 1394a) to PCI Express Host Controller

The FWX4-PCIE1xE330 is a Quad OHCI 1.1 Compliant FireWire (IEEE 1394a) to PCI Express Host Adapter.

FWX4-PCIE1xE330 is designed with Two key components.

  • 5-Lane, 5-Port PCI Express Switch.
  • OHCI 1.1 Compliant IEEE 1394a Single Chip Host Controller.

Utilizing the standard PCI Express Switch, the 5-Lane/5-Port PCI Express Switch provides the most efficient fan-out solution for integrating two OHCI 1.1 Compliant IEEE 1394a Single Chip Host controllers into a small board design. Each OHCI 1.1 Compliant IEEE 1394a Single Chip Host controller takes advantages of 2.5 Gbps burst rate of 1-lane PCI Express bus in both directions and is fully compliant with PCI Express Base specification 1.1. This solution provides full PCI Express and 1394a functionality and performance.

Technical Specifications
PCI Express:
  • Full compliance to PCI Express Revision 1.1
  • Supports Advanced Error Reporting capability
  • Active State Power Management (ASPM) to L0s and L1
  • Flexible programmable Bus master burst sizes and advanced internal arbitration control to optimize the bus utilization
  • Compliance with PCI bus power management specification v1.1 and ACPI v2.0
1394 PHY & OHCI (Open Host Controller Interface):
  • Single chip compliance with IEEE 1394a-2000, 1394-1995 and 1394a Open HCI host controller integrated 2-ports PHY layer function
  • Compliance with 1394 Open HCI specification 1.0 and 1.1
  • Compliance with IEEE 1394-1995 specification release 1.0
  • Compliance with IEEE 1394a P2000
  • Provide 8 isochronous transmit contexts
  • Provide 4 isochronous receive contexts
  • Supports 400 / 200 / 100 Mbps of data transfer rate
  • General DMA controller control mechanism and I/F design
  • 3-deep physical post write queue
  • 4-deep physical response queue
  • GUID PROM shadow to EEPROM
Number of Ports:

Four FireWire P1394a Cable Ports:

  • OHCI 1 (FW-6pin)
  • OHCI 2 (FW-6pin)
  • OHCI 3 (FW-6pin)
  • OHCI 4 (FW-6pin)
1394 Bus Power Connector:
  • Big IDE 4-pin DC Power Connector


Operating System Requirements
  • No driver installation for
    • Windows 98SE/ME/2000/XP/Vista/7 and Windows Server 2003