Abstract: A coherent system including a plurality of processing units; an interconnect comprising a snoop filter, a conflict buffer to track in-progress or outstanding snoop, and a snoop state machine for managing snoop requests and snoop responses between the snoop filter, the conflict buffer and the processing units; wherein the snoop filter is configured to copy cacheline data of a cacheline that the processing unit reads on, match the cacheline address with tags of the snoop filter, and receive the snoop responses; wherein the conflict buffer is configured to indicate a hit or miss status based on the matching of the snoop filter and to send peer-cache snoop requests to different processing units. Further, a method of maintaining cache coherence using the coherent system also disclosed.

Abstract: The present invention discloses a computer-implemented method of data transmission for a Network-on-Chip to allow high performance routing through dynamic allocated buffer. The method comprises the steps of transferring command or data in a form of plurality of flits from a source node to a router and further to a destination node, and transmitting the flits from the destination node back to the router, wherein the flits are packetized for transmission according to channel width and transaction width, sequence, and priority routing through physical and virtual channels.