Data bus
= Data bus
The <computer bus> path carrying payload. A write sends data from the initiator to the target; a read returns data from the target. Owning the request path does not mean driving the <data bus> in both directions.<CS152: Computer Architecture and Engineering, Fall 1999/Lecture 21: Buses and I and O>[CS152 lecture 21, slide 24: initiator commands, data in either direction]{ref}