SYSTEM TO ARBITRATE ACCESS REQUESTS OF SEVERAL PROCESSORS TO COMMON RESOURCES BY MEANS OF A COMMON BUS

摘要

The invention relates to an access system to several processors having common resources by means of a common bus. For each processor this system comprises an arbitration means for access request conflicts. The arbitration means comprises access request processing means connected to the bus and to the processor and an access priority resolution circuit connected to the bus, to the access request processing means and to the processor. The resolution circuit is able to allocate mixed, cyclic or mixed fixed and cyclic priorities to the access requests. Application to the management of access requests for processors or microprocessors having common resources, such as memories.