PI7C7300A

The PI7C7300A is Pericom Semiconductor's second-generation PCI-PCI Bridge. It is designed to be fully compliant with the 32-bit, 66MHz implementation of the PCI Local Bus Specification, Revision 2.2. The PI7C7300A supports only synchronous bus transactions between devices on the Primary Bus running at 33MHz to 66MHz and the Secondary Buses operating at either 33MHz or 66MHz. The Primary and Secondary Buses can also operate in concurrent mode, resulting in added increase in system performance. Concurrent bus operation off-loads and isolates unnecessary traffic from the Primary Bus; thereby enabling a master and a target device on the same Secondary PCI Bus to communicate even while the Primary Bus is busy. In addition, the Secondary Buses have load balancing capability, allowing faster devices to be isolated away from slower devices. Among the other features supported by the PI7C7300A are: support for up to 15 devices on the Secondary Buses, Compact PCI Hot Swap (PICMG 2.1, R1.0) Friendly Support and Dual Addressing Cycle.