DRAM run frequency adjustment system and method

A technology of operating frequency and frequency, which is applied in the field of DRAM operating frequency adjustment system, can solve the problem that it is difficult to find the balance point of performance and power consumption, and achieve the effects of avoiding data loss, improving operating efficiency, and saving power consumption

Inactive Publication Date: 2014-07-09
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The traditional multimedia chip system does not fully consider the characteristics of these tasks, and can only pre-configure the operating frequency of the DRAM through software at a special stage, such as when the system is started, it is difficult to find a correct balance between performance and power consumption

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  • DRAM run frequency adjustment system and method
  • DRAM run frequency adjustment system and method
  • DRAM run frequency adjustment system and method

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Embodiment Construction

[0067] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0068] refer to figure 1 , which shows a structural block diagram of an embodiment of a DRAM operating frequency adjustment system according to the present invention, which may specifically include:

[0069] The bandwidth utilization statistics module 101 is used to count the effective working state distribution of the DRAM in the preset time interval, and obtain the bandwidth utilization of the current DRAM operating frequency;

[0070] The parameter configuration module 102 includes a target operating frequency configuration sub-module 121 for generating a target DRAM operating frequency;

[0071] A frequency switching controller 103, configured to adjust the current DRAM operating frequency to the target DRAM operating frequen...

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Abstract

A system and a method for adjusting dynamic random access memory (DRAM) operating frequency are provided. The DRAM operating frequency adjusting system comprises: a statistics module, for counting the effective operating state of DRAM in a predetermined time interval to acquire bandwidth utilization of current DRAM operating frequency; a parameter configuration module, including a target operating frequency configuration sub-module which is used for generating a target operating frequency; a frequency switch controller, for adjusting the current DRAM operating frequency to a target operating frequency. The system adjusts the performance power consumption balance point of the DRAM so as to improve operating speed of the chip system and save power consumption effectively.

Description

technical field [0001] The present invention relates to the technical field of dynamic random access memory (DRAM), in particular to a DRAM operating frequency adjustment system and method. Background technique [0002] DRAM (Dynamic Random-Access Memory), that is, dynamic random access memory. DRAM can only hold data for a short time. In order to keep data, DRAM uses capacitive storage, so it must be refreshed once in a while to keep the data stored in it. This refresh is operated by the DRAM controller. The refresh requirement of DRAM consumes a relatively large amount of power due to the large battery capacity required for refresh. [0003] As a typical system-on-chip (SOC), there are multiple functional modules in the multimedia chip system, such as processors, hardware accelerators, and so on. These functional blocks operate independently, accessing various memory resources as needed. Due to the large amount of data, files and temporary data are generally stored in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C11/406
CPCG11C2207/2254G11C11/4076
Inventor 林川
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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