A BUS ARBITRATION DEVICE

摘要

A bus arbitration device includes a top arbiter (100), the hierarchical bus arbitration device also includes a first arbiter (101), the said first arbiter (101) arbitrates the first kind of requests, wherein the first kind of requests relates to the first kind of master units (130, 131, 132) a second arbiter (103), the said second arbiter (103) arbitrates the second kind of requests difference from the first kind of requests, wherein the second kind of requests relates to the second kind of master units (133, 134,135,136) difference from the first kind of master units (130,131, 132) wherein the said first arbiter (101) and the said second arbiter (103) are downward respectively from the top to form the hierarchical bus arbitration structure.