COMPUTER ARBITRATION SYSTEM, BANDWIDTH, ALLOCATION APPARATUS, AND METHOD THEREOF

摘要

The bandwidth allocation apparatus includes a high bandwidth arbitration module, a low bandwidth arbitration module and a multiplexer. The high bandwidth arbitration module is used to select one downstream device from the high bandwidth downstream device group for allowing uplink. The low bandwidth arbitration module is used to select one downstream device from the low bandwidth downstream device group for allowing uplink. The multiplexer selects the one of the access requests from the high bandwidth arbitration module or the low bandwidth arbitration module for allowing to uplink the access request to an upstream device. The access transmission times of the high bandwidth arbitration module and the low bandwidth arbitration module are counted respectively by a counting circuit.

主权项

1. A bandwidth allocation apparatus used to arbitrate multiple access requests from a plurality of downstream devices to an upstream direction, wherein the downstream devices are classified into at least one high bandwidth downstream device group and at least one low bandwidth downstream device group according to a transmission speed, the bandwidth allocation apparatus comprising:
a high bandwidth arbitration module used to select one downstream device from the high bandwidth downstream device group for allowing uplink; a low bandwidth arbitration module used to select one downstream device from the low bandwidth downstream device group for allowing uplink: and a multiplexer used to select one of the access requests from the high bandwidth arbitration module or the low bandwidth arbitration module for allowing to uplink the access request to an upstream device, wherein access transmission times of the high bandwidth arbitration module and the low bandwidth arbitration module are counted respectively by a counting circuit, when the access transmission times of the high bandwidth arbitration module or the access transmission times of the low bandwidth arbitration module exceeds an preset value correspondingly, the multiplexer is changed to receive the access request from another bandwidth arbitration module.