PowerSpan II™

The PowerSpan II is a multi-port PCI bus switch that bridges PCI to the PowerQUICC™ II (MPC8260), MPC7xx, PowerPC® 7xx, and PMC-Sierra WinPath™ processors. The bridge defines a new level of PCI bus switch flexibility.

The PowerSpan II has a switched PCI architecture, which maximizes transfer concurrency and improves the efficiency and burst performance on the PCI and processor buses. Along with a revolutionary switched PCI architecture, the PowerSpan II features integrated PCI-to-PCI bridging, concurrent prefetch read capability, multi-port Direct Memory Access (DMA) operation, and CompactPCI Hot Swap support.The PowerSpan II is available in single or dual PCI variants. The single PCI PowerSpan II is a two-port device that has a PCI interface and a PowerPC bus interface. The dual PCI variant is a three-port device that has two PCI interfaces and a PowerPC bus interface.

The PowerSpan II in conjunction with the PowerPro – a PowerPC memory controller – provides a 100-MHz PowerPC interconnect solution. This flexible offering allows designers to leverage the PowerSpan II and PowerPro devices across many different system architectures with a common investment in software.

Technical inquiries or support questions can be submitted via the technical support form.