Method and apparatus to insert and extract data from a plurality of slots of data frames by using access table to identify network nodes and their slots for insertion and extraction data

摘要

An extraction and insertion controller for inserting into and extracting data values from a frame transmitted to a plurality of nodes is provided. The frame has a plurality of slots for storing data. The insertion and extraction controller includes an access table identifying slots for extraction of information by at least one of the plurality of nodes and also identifying slots for insertion of information by at least one of the plurality of nodes. The insertion and extraction controller also includes an extraction and insertion map controller operable to control modifications to the access table and an extraction controller operable to provide data stored in one of the plurality of slots to a respective node indicated by the access table. The insertion and extraction controller also includes an insertion control unit operable to provide data to one of the plurality of slots from a respective node indicated by the access table.