System for PCI slots expansion having expansion clock generator providing clock signals wherein propagation delay between the clock generator and each recipient is approximately equal

摘要

An apparatus and method for providing PCI slot expansion. An asynchronous PCI to PCI bridge for insertion into a host PCI slot is coupled via a cabled PCI bus to an expansion module. The bridge establishes two distinct time domains. An expansion clock signal is generated and its timing matched for consistent arrival throughout the expansion clock domain. An expanded number of PCI slots are thereby available to the host system.