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1 pc. tundra# CA91L8260B-100CE, multi-port pci bus swit
MULTI-PORT PCI BUS SWITCH, 100MHZ
The high level of performance and flexibility of PowerSpan II is made possible
Switched PCI - unique to PowerSpan II. Switched PCI uses a switching
fabric to enable data streams to pass from port-to-port across the multi-ported
PowerSpan II without collision. This improves the burst performance and decreases
latency on the PCI and processor busses a key element of I/O processor
PowerSpan II is also part of a chipset offering with the Tundra PowerPC Memory
PowerPro. When PowerSpan II is in a application with both PowerPro
and the MPC8260, PowerPro can be configured to implement ECC protection in the
PowerPro PowerPC Memory Controller Manual for
Direct connect interface for embedded PowerPC processors MPC8260,
MPC8260A, MPC74xx, PowerPC 7400, PowerPC 740, and PowerPC 750
25 MHz-to-100 MHz bus frequency
Programmable endian conversion
MPC8260 Configuration Slave support for power-up options
Eight programmable memory maps to PCI from the processor
Processor bus arbiter with support for three requesters
One 32-bit or 64-bit PCI interface
Integrated, non-transparent PCI-to-PCI bridge in the Dual PCI PowerSpan II
PCI arbiters on each PCI interface
CompactPCI Hot Swap Friendly
PCI 2.2 Specification compliant
PowerSpan II offers the following benefits to designers:
Smaller packages reduce board area required for system design.
Integrated PCI bus, processor bus arbiters decrease individual component count
Flexible PCI interfaces enable PowerSpan II to meet many different application
Integrated, non-transparent PCI-to-PCI bridge connects traffic between the two
PCI interfaces. This decreases individual component count and simplifies
conventional CompactPCI board architecture.
Supports reads from multiple I/O devices in parallel, non-blocking streams
The Tundra PowerQUICC II and PowerPC architecture expertise is passed to
Design Support Tools including software, schematics, and evaluation board.
For more information refer to .
Detailed design documentation including device manuals, and application
Tundra understands vendors needs to increase performance throughout today s
communications networks. From premise equipment to local carrier gear to highend
switches, designer s need to deliver ever-faster traffic through the same or
smaller footprint at a reduced cost. Tundra System Interconnect helps in that effort
by providing features and benefits across all areas of the network. PowerSpan II
helps designers working on infrastructure equipment in the following areas:
Table 1: PowerSpan II Applications
LAN/WAN Remote/Local Access Wireless
ADSL Concentrators Third Generation (3G) Base
Ethernet Switches VoIP Gateways
