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SDRAM controller and access method for SDRAM memory space

A storage space and controller technology, applied in the field of communication, can solve problems such as complex system design, achieve the effect of reducing physical connections, simplifying design, and improving access efficiency

Inactive Publication Date: 2014-01-29
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of SDRAM controller and the access method to SDRAM memory space, to overcome the defective that existing system design is very complicated

Method used

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  • SDRAM controller and access method for SDRAM memory space
  • SDRAM controller and access method for SDRAM memory space
  • SDRAM controller and access method for SDRAM memory space

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Embodiment Construction

[0039] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0040] In this embodiment, the external SDRAM storage space is accessed in the form of data packets, and the operation on the SDRAM storage space is completed in the form of data packets, thereby effectively improving the access efficiency of multiple master devices to the SDRAM storage space.

[0041] Such as figure 1 As shown, the SDRAM controller is composed of: a master module 110 , an uplink channel 120 , an SDRAM module 130 and a downlink channel 140 . Wherein, the main device module 110 includes: a control and data sending module 111 and a data receiving module 112 ; ...

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Abstract

The invention discloses an SDRAM controller and an access method for SDRAM memory space. The SDRAM controller is used for accessing the SDRAM memory space and comprises a primary device module, more than one uplink channel and an SDRAM module; a plurality of primary devices required to access the SDRAM memory space are externally connected with the primary device module, the primary device module is used for sending read-write operation requests sent by the primary devices to the SDRAM module in a data package mode through the corresponding uplink channels according to the preset mapping relation between the primary devices and the uplink information channels; the SDRAM module is used for conducting read-write operation on the SDRAM memory space according to control information carried in the read-write operation requests after receiving the read-write operation requests. According to the SDRAM controller and the access method for the SDRAM memory space, system design is simplified, and accessing efficiency of the external SDRAM memory space is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to an SDRAM controller and a method for accessing SDRAM (Synchronous Dynamic Random Access Memory, Synchronous Dynamic Random Access Memory) storage space. Background technique [0002] With the rapid development of multimedia services in communication networks, the network's demand for communication transmission bandwidth is growing explosively. With the rapid increase of network data volume, the processing of massive data has become the bottleneck of network development. In the process of processing massive data packets, the access to external memory becomes the bottleneck of data packet processing. Whether it can provide access to multiple master devices and provide high-bandwidth access to external memory has become a bottleneck in the design of the entire system. [0003] The traditional method is to use a general-purpose parallel SDRAM controller to access multiple master devices i...

Claims

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Application Information

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IPC IPC(8): G06F13/16
Inventor 侯志伟
Owner SANECHIPS TECH CO LTD
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