Matchline retention for mitigating search and write conflict

摘要

Systems and methods relate to a matchline receiver of a content-addressable memory (CAM). A matchline of the CAM, which provides a hit/miss indication for a search operation of a data word is provided to the matchline receiver. The matchline receiver comprises a retention circuit to provide a hit/miss output, wherein the retention circuit retains, at the hit/miss output, the hit/miss indication provided by the matchline during a first clock phase of a clock, even if the hit/miss indication provided by the matchline is modified by a write operation or an invalidation operation during the first clock phase.

主权项

1. An apparatus comprising:
a matchline receiver configured to receive a matchline of a content-addressable memory (CAM), wherein the matchline is configured to provide a hit/miss indication for a search operation of a data word of the CAM corresponding to the matchline; wherein the matchline receiver comprises a retention circuit configured to retain, on a hit/miss output, the hit/miss indication provided by the matchline during a first clock phase of a clock, even if the matchline is modified during the first clock phase.