Arbiter array using two-dimensional address decoding

摘要

A system comprises a plurality of requesting agents and granting agents configured in an array of rows and a plurality of columns. Corresponding to each requesting agent is a plurality of row address decoders and column address decoders, one row decoder for each row of granting agents and one column decoder for each column of granting agents. Each row decoder receives a first subset of an address' bits from a requesting agent and generates a row output bit provided to each granting agent in the row of that row address decoder. Each column decoder receives a second subset of bits of the address and generates a column output bit provided to each granting agent in the column corresponding to such column decoder. Each granting agent logically combines the row and column output bits from row and column decoders of a requesting agent to generate a request signal for the granting agent.