Patent ID: 9372799
Filing Date: 2016-06-21
CPC Classification: G06F

Claim Text:
1. A cache coherence method comprising the steps of: initiating transaction requests from a coherent cache master, each transaction request accompanied by a unique ID, and each initiated transaction request requiring coherent ownership tracking being further accompanied by an acknowledgement expected signal; transmitting an acknowledge ID signal corresponding to a unique ID upon said coherent cache master taking ownership of a response to a transaction request; responding to transaction requests by a cache slave; transmitting a transaction request initiated by said coherent cache master to said cache slave; transmitting a response to a transaction request received from said cache slave to said coherent cache master; cease tracking a response to a transaction request if said corresponding transaction request was not accompanied by an acknowledgement expected signal; continue tracking a response to a transaction request if said corresponding transaction request was accompanied by an acknowledgement expected signal; and cease tracking a transaction request/response if said corresponding transaction request was accompanied by an acknowledgement expected signal upon receipt of an acknowledge ID signal corresponding to a unique ID from said coherent cache master.