Arbitration method, system, equipment for accessing storing device and storage control equipment

Abstract

The invention discloses an arbitration method for accessing memory unit, which comprises: after receiving an access request for the memory unit from a memory control unit, so as to determine the latest response time of the memory control unit that proposes the access request; under the condition that the memory unit is idle and the memory control unit that proposes the access request is at least of 2 hours, the memory control unit with shortest time for latest response will be given the access right. When the memory unit is accessed, the service time needed of the memory unit shall be determined. Then judge whether the needed service time exceeds the latest response time of the memory control unit that proposes the access request, interruption the current service of the memory unit, determine the memory control unit with access right among all the memory control units that propose the access request and grant it with the access right. The invention also discloses an arbitration system, an arbitration device and a memory control device for the access to memory unit. Therefore, the invention can prevent the setting-off of data and improve the efficiency for the access to memory unit.

Description

technical field [0001] The invention relates to storage technology, in particular to an arbitration method, an arbitration system and an arbitration device for memory access. Background technique [0002] In chip design, in order to make full use of the memory, it usually occurs that multiple storage control units need to access one memory. At this time, an arbitration unit is needed to decide which control unit gets the access right. figure 1 A schematic diagram of the structure of the existing memory access arbitration system, such as figure 1 As shown, the system includes 4 storage control units 110 , 1 arbitration unit 120 and 3 memories 130 . Among them, the four storage control units 110 can access any one of the three memories 130 . When multiple storage control units 110 apply to access a memory 130, they send an access request to the arbitration unit 120, and the arbitration unit 120 determines the storage control unit 120 that can obtain the access right accordi...

AI Technical Summary

Problems solved by technology

[0009] The disadvantage of this arbitration strategy is that once a certain storage control unit obtains the access right, other storage control units can only obtain the access right to the memory after the memory is free again.

[0018] To sum up, the existing memory access arbitration scheme cannot improve memory access efficiency while avoiding data interruption

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