Patent ID: 7340544
Filing Date: 2008-03-04
Classification: G06F

Abstract:
1. A method of using a bus, comprising: determining whether a subject unit among a plurality of units corresponding to masters obtaining a bus use permission from an arbiter uses the bus as a master to transfer data to/from a first unit corresponding to a slave; converting the first unit into a master when the subject unit does not use the bus in order to allow the first unit to use the bus as a master, when the subject unit is determined not to be using the bus, allowing a second unit obtaining the bus use permission from an arbiter among the plurality of units corresponding to masters to use the bus as a master to transfer data to/from the first unit corresponding to a slave; and converting the second unit corresponding to a master into a slave in order to interrupt the bus use request from the second unit when a data amount received by the second unit is sufficient to accomplish a specified task.