GLOBAL CONFIGURATION BROADCAST

摘要

Methods and apparatus for configuring multiple components of a subsystem are described. The configuration memory of each of a plurality of components coupled to an interconnect includes a global configuration portion. The configuration memory of one of the components may be designated as a master global configuration for all of the components. A module coupled to the interconnect may receive writes to the components from a configuration source. For each write, the module may decode the write to determine addressing information and check to see if the write is addressed to the master global configuration. If the write is addressed to the master global configuration, the module broadcasts the write to the global configuration portion of each of the components via the interconnect. If the write is not addressed to the master global configuration, the module forwards the write to the appropriate component via the interconnect.

主权项

1. An apparatus, comprising:
an interconnect; a plurality of components each comprising a configuration memory and each coupled to the interconnect, wherein the configuration memory of each component is allocated a unique address space on the interconnect, wherein a global configuration portion of the configuration memory of each component is allocated to global configuration information common to the plurality of components, and wherein the global configuration portion of the configuration memory of one of the plurality of components is designated as a master global configuration for the plurality of components; and a configuration module coupled to the interconnect and configured to:
receive a request from a configuration source;detect that the request is a write request to the master global configuration for the plurality of components; andin response to said detecting, broadcast the write request to the global configuration portion of the configuration memory of each of the plurality of components via the interconnect.