Patent ID: 7149838
Filing Date: 2006-12-12
Classification: G06F

Abstract:
1. A method for configuring a bus system having a plurality of bus segments with bus master devices and slave devices connected thereto, the bus segments connected by bus bridges and arranged in a hierarchy with levels, each bus bridge having a bridge ID, a plurality of internal registers and an address bitmap for controlling information flow through the bridge wherein each bridge responds to configuration commands sent to its bridge ID, the method comprising: (a) selecting an initial bridge ID value; (b) initially setting the bridge ID of all bridges to the initial bridge ID value so that all bridges start with the same bridge ID; (c) configuring bridges on a hierarchical level so that only one bridge at a time responds to a configuration command sent to the initial bridge ID value; (d) repeatedly sending configuration commands and data to the initial bridge ID value; (e) assigning a unique bridge ID different from the initial bridge ID value to each bridge that responds to the configuration commands and data; and (f) entering information into internal registers and address bitmap of each bridge that responds to the configuration commands and data to control the flow of information between bus segments.