Data packet routing scheduler and method for routing data packets on a common bus

摘要

A data processing system (20) schedules the allocation of a common bus (26), used by multiple service requesters (32). The system (20) creates a plurality of service request levels (44) and assigns each service requester (32) to one of the plurality of request levels (44). Services of the common bus (26) are provided to all service requesters (32) assigned to a first service request level (44) for each instance of providing service to one of the service requesters (32) assigned to a second service request level (44). The method then again provides services of the common bus (26) to all service requesters (32) assigned to the first service request level (44) for a single instance of providing service to one of the second level requesters (32).