公开(公告)号：US11138036B2

公开(公告)日：2021-10-05

申请号：US16739388

申请日：2020-01-10

Applicant: STMicroelectronics SA ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Bruno Denis ,  Christophe Taba

IPC: G06F9/48 ,  G06F9/54 ,  G06F12/1081 ,  G06F13/364 ,  G06F13/16 ,  G06F13/30 ,  G06F13/40

Abstract: Requests are received by a routing circuit. A plurality of first round-robin arbitration circuits are coupled to the routing circuit. There are as many first round-robin arbitration circuits as there are possible priority levels for the requests. The routing circuit operates to transmit each received request to a number of first round-robin arbitration circuits determined according to the priority level of the request. A second round-robin arbitration circuit has inputs respectively connected to the outputs of the first round-robin arbitration circuits.