DATA TRANSFER TECHNIQUES FOR MULTIPLE DEVICES ON A SHARED BUS

摘要

Direct data transfer between devices having a shared bus may be implemented with reduced involvement from a controller associated with the devices. A controller, a source memory device, and a target memory device may be coupled with a shared bus. The controller may identify a source address at the source memory device for data to be transferred to the target memory device. The controller also may identify a target address in the target memory device, and initiate a data transfer directly from the source to the target through a command that is received at both the source and the target memory device. In response to the command, the source memory device may read data out to the bus, and the target memory may read the data from the bus and store the data starting at the target address without further commands from the controller.

主权项

1. A method of operating a memory system, comprising:
identifying, at a memory controller, a source address in a source memory for data to be transferred to a target memory, wherein the memory controller, the source memory and the target memory are each coupled with a bus; and sending, by the memory controller, a target address to the target memory to initiate a transfer of the data directly from the source memory to the target memory via the bus.