Patent ID: 8041867
Filing Date: 2011-10-18
Classification: G06F

Abstract:
1. A bridge circuit coupled between a first master device of a first bus system and a slave device of a second bus system, the bridge circuit comprising: a first path installed in the first bus system, for accessing the slave device by the first master device; a second path installed in the first bus system, shared among the first master device and a second master device of the first bus system, wherein the second path is allowed to be accessed by one master device at any time; and a third path installed in the second bus system, coupled to the slave device, wherein the first master device accesses data of the slave device via the first path and the third path when the second path is occupied by the second master device, wherein, the first bus system conforms to an Advanced High-Performance Bus (AHB) protocol and the second bus system conforms an Advanced Peripheral Bus (APB) protocol.