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PCI_VME
PCI_VME
 Adapter bridges PCI bus to VME64 bus

  Datasheet (PDF)
Highlights:
  • Supports 64-bit VME interface including D64 and D64 BLT modes
  • Fully compliant, 64-bit 33 MHz PCI local bus interface version 2.1
  • Transfer rate up to 60-70 MB/s between two buses
  • Built-in DMA controller which supports VME BLT and MBLT block transfer mode
  • Concurrent access from both VME side and PCI side
    •
    Description:
    The Solflower PCI-VME Adapter is built with a Universe single chip PCI-VME interface. The Universe uses built-in FIFO to decouple the transfer of data between the asynchronous VME and the synchronous PCI bus. The advantage of a decoupled system is increased bandwidth and a decrease of local bus latency. There is no waiting for remote bus arbitration and data acknowledgment; therefore, each bus operates at its optimum speed. By using the Solflower PCI-VME bridge, system integrators can now rely on a product which allows direct connection of all off-the-shelf VME interfaces to the Sun Ultra PCI-based workstation.

    The Solflower PCI-VME Adapter consists of a board set connected via a shielded cable (two, four, six up to 24-foot length). One board (PCI card) uses a single PCI slot of the host, the other board (6U VME interface board) is installed in a VME card cage. The software is compatible with Solaris 2.5.1+ or higher.

    Specifications:
    Operation:
    PCI bus Interface
    Features
  • PCI Local Bus version 2.1
  • Supports both 32 bit and 64 bit cPCI bus
  • PCI clock rate 25 - 33Mhz
  • Multiple bus masters and DMA capability
  • Programmable burst size 32/64 bytes burst
  • 5V interface, PCI short card
    •      		Solflower PCI-VMEbus Adapter can be used in two modes - plug-and-play under Solaris 2.5 - 2.6 or using ioctl and mmap() functions to access VME slave memory space. The Solflower nexus driver for the plug-and-play mode allows existing Sun4 VME drivers to run on Sun Ultra PCI-based workstation without modification.
    VMEbus Interface
    Performance
  • Conforming to VME64 specification including A64 and D64 modes
  • Support Read Modify Write (RMW) and Address Only with Handshake mode (ADOH)
  • Seven interrupt levels for either Fairness or Round Robin modes
  • Release When Done (RWD) or Release On Request (ROR) modes programmable
  • PCI DMA read/write: 32 bytes per block, 51Mb/s
  • PCI DMA read/write: 64 bytes per block 74Mb/s
  • VME DMA D32 mode: read/write, 30-40 MB/s
  • VME DMA D64 mode: read/write, 60-70 MB/s
    •
    Utilities Interface
    Software Support
  • Built-in DMA controller
  • Programmable VME time-out 16 to 1024 usecs
  • Supports SYSCLK on slot 1 VME
    •
  • Plug-and-play driver for Solaris 2.5.1 and 2.8 distributed in Solarisís pkgadd format
  • Utilities for using built-in DMA controller to transfer data across buses
  • Automatic adjust the mapping windows when host access any VME address.
  • Cover up to 8 PCI slave windows, allow simultaneous mapping of multiple VME spaces .
    •
    Physical Dimensions
    Power Supply
    6-slot 6U VME Tower:
    Height 14.50 inches
    Width 5.50 inches
    Depth 12.50 inches
    4-slot VME horizontal Box:
    Height 3.75 inches
    Width 16.00 inches
    Depth 16.00 inches     		Input voltages:
    115/220 VAC @ 60/50 Hz
    Output voltages:
    5 VDC @ 25 Amps
    12 VDC @ 10 Amps.
    -12 VDC @ 0.5 Amps.

    ©2005 Solflower Computer Inc.
    Sun, Sun Microsystems, and Solaris are registered trademarks of
    Sun Microsystems, Inc. in the United States and in other countries.