PCI-to-VMEbus Bridge
Universe II™
The Tundra Universe II is the industry's leading high performance PCI-to-
VMEbus interconnect. Universe IIis fully compliant with the VME64 bus
standard, and is tailored to support the next-generation of advanced PCI
processors and peripherals. With a zero wait state implementation for write
transactions, and the capability to support prefetch reads and multi-beat
transactions, the Universe II provides high performance on the PCI bus.
The Universe II eases development of VMEbus systems by providing direct
connection to a local PCI bus. The device is ideally suited for CPU or
peripheral boards functioning as both master and slave in the VMEbus
system. Bridging is accomplished through a decoupled architecture with
independent FIFOs for inbound, outbound, and DMA traffic. With this
architecture, throughput is maximized without sacrificing bandwidth on
either bus.
Block Diagram
With the Universe II, you know that as your system becomes more complex,
you have proven silicon that continues to provide everything you need in a
PCI-to-VME bridge.
32-bit Address / 64-bit Data
33 MHz PCI Bus
32-bit Address / 64-bit Data
33 MHz PCI Bus
Location
Monitor
VMEbus
Arbiter
Four Location Montiors
To Support VMEbus
Broadcast Capability
Fixed Priority,
Round Robin,
Single Level Modes
IEEE1149.1 Boundary Scan
JTAG
8091142_BK001_03
VMEbus Slave Channel
Posted Writes, Prefetched Reads,
Coupled Reads
PCI Target Channel
Posted Writes, Coupled Read
Interrupt Channel
Interrupt Handler,
Interrupter
DMA Channel
Bidirectional FIFO,
Direct/Linked List Mode
VMEbus Interface
PCI Interface
Features
• Industry-proven, high performance 64-
bit VMEbus interconnect
• Fully compliant, 32-bit or 64-bit,
33 MHz PCI bus interconnect
• Integral FIFOs for write posting to
maximize bandwidth utilization
• Programmable DMA controller with
Linked-List mode
• Flexible interrupt logic
• Sustained transfer rates up to
60-70 Mbytes/s
The Universe II is the industry standard PCI
bus-to-VMEbus bridge.
• Extensive suite of VMEbus address and
data transfer modes
• Automatic initialization for slave-only
applications
• Flexible register set, programmable
from both the PCI bus and VMEbus
ports
• Full VMEbus system controller
• Support for RMWs, ADOH, PCI LOCK
cycles, and semaphores
• Commercial, industrial, and extended
temperature variants
• IEEE 1149.1 JTAG
• Available packages:
– 25mm x 25mm, 361-contact dimpled
ceramic BGA (DBGA)
– 35mm x 35mm, 313-contact plastic
BGA (PBGA)
Tundra Semiconductor Corporation
603 March Road, Ottawa,
Ontario, Canada, K2K 2M5
Phone: 613-592-0714 Toll-free: 800-267-7231
Fax: 613-592-1320 Email: info@tundra.com
Document: 8091142_FB001_02
©2006 Tundra Semiconductor Corporation
All trademarks are property of their respective
owners. Information is subject to change
without notice.
Universe PCI-to-VMEbus Bridge
Typical Application: Single Board
Computers
The Universe II is widely used on VME-based Single Board Computers (SBC)
that employ PCI as their local bus and VME as the backplane bus, as shown
in the accompanying diagram. These SBC cards support a variety of
applications including telecom, datacom, medical, industrial, and military
equipment.
The Universe II high performance architecture seamlessly bridges the PCI and
VME busses, and is the VME industry's standard for single board computer
interconnect device.
Application Diagram
PMC
Connection
PCI Bus
32-bit/64-bit Data
33 MHz
VMEbus
64-bit Data
Processor Bus
8091142_TA001_02
Memory
Universe II
I/O
Controller
Processor-
to-PCI Bridge
Processor
Benefits
Conserves board space with
25mm x 25mm, 361-contact dimpled
ceramic BGA (DBGA)
Industry proven design
Reliable customer support with experience
in hundreds of customer designs
Tundra Semiconductor is the world leader in
VME Interconnect technology.
Typical Applications
The Universe II eases the development of
VME Single Board Computers (SBCs) and I/
O peripheral boards which target the
following market segments:
• Telecommunications
• Industrial Automation
•Medical
• Military
• Aerospace
Design Support
Tundra is committed to helping customers
minimize their time to market. That's why
our knowledgeable Applications Engineers
work closely with customers to address
their needs.
Other support options include: application
notes, IC models, evaluation boards, and
hardware and software development
tools.
For more information about our design
support options, please see
www.tundra.com/Universe II.
