Patent attributes
A command-response bus protocol reduces the number of response transactions generated on a bus. According to an embodiment, an array of data is divided into a number of packets and transmitted over the bus in respective transactions. The transactions each include a writeback flag, which is enabled for the last packet but otherwise disabled. When a receiver of the packets observes the enabled writeback flag, it generates a response transaction. The response transaction indicates either that all packets of the array were received properly or that the commanded operation has been completed for the entire array. Overall, the number of bus transactions are reduced with respect to alternative schemes that require a response transaction for each transmitted packet.
