A method for processing network data is disclosed and may include receiving data via a single bus interface to which each of a plurality of Ethernet controllers are coupled, where the Ethernet controllers are integrated within a single chip. A particular one of the integrated Ethernet controllers may be identified based on information within the received data. The particular one of the integrated Ethernet controllers may be granted access to a shared resource within the single chip. The access to the shared resource may be granted using at least one semaphore register within the shared resource. The particular one of the integrated Ethernet controllers may be granted access to the single bus interface. The information may include a bus identifier, a bus device identifier and/or a bus function identifier. The shared resource may include a nonvolatile memory (NVM).