Storage controller and control method

A control method and memory technology, applied in the field of storage, can solve the problems of reducing memory read and write efficiency, wasting memory access data bandwidth, etc., and achieve the effects of improving efficiency, simple implementation, and solving the tRC problem

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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Problems solved by technology

This wastes the access data bandwidth of the memory during the per...

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  • Storage controller and control method

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated:

[0030] like image 3 Shown, the controller of the present invention is the dotted frame part in the figure, and this controller is on the basis of prior art, has increased time-division multiplexing control module and FIFO data processing module (first in first out data processing module); The time-division multiplexing control module is connected to the command parsing and initialization module, and the FIFO data processing module is connected to the read-write data path module. The time-division multiplexing control module divides the working time of the memory into at least two time slots, and the time slots The time interval is greater than or equal to the tRC time of the memory, and the read / write operation to the storage block is fixed in the corresponding time slot; the first-in-first-out data processing module performs first-in first-out processing on th...

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Abstract

The present invention discloses memory controller and control method, referring to storage technology in IP network equipment. It contains command resolving and initializing module, address and control interface module, read-write data path module and read-write data interface module, which are respectively interconnected between user application layer and memory; time division multiplexing control module connected with command resolving and initializing module; first in first out data processing module connected with read-write data path module. The present invention adopts time division multiplexing principle, dividing each time slice into number of time slot, distributing each memory block read write operation to relevant time slot, and ensuring twice consecutive access time interval to same memory block greater than or equal to tRC time, raising memory read-write data efficiency. The present invention processes data in memory according to first in first out mode, raising memory interface data access efficiency.

Description

[Technical field] [0001] The invention relates to the technical field of storage in IP network equipment, in particular to a storage controller and a control method. [Background technique] [0002] With the development of IP networks, the data traffic transmitted by IP networks is increasing. Due to the sudden nature of IP network data traffic, more and more large-capacity, high-data-flow memories are used in IP network devices, such as QDR SSRAM (Quad Data Rate Synchronous Static Random Access Memory, Quad Data Rate Synchronous Static Random Access Memory), RLDRAM (Reduced Latency Dynamic Random Access Memory low-latency dynamic random access memory), DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory double data rate synchronous dynamic random access memory), SDRAM (Synchronous Dynamic Random Access Memory synchronous dynamic random access memory) and FCRAM (Fast Cycle Random Access Memory fast cycle dynamic memory). Since QDR SSRAM has a relatively sma...

Claims

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Application Information

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IPC IPC(8): G06F3/06H04L49/901
Inventor 乐伟军张克亮郭燕涛何洋邬旭永
Owner HUAWEI TECH CO LTD
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