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Direct internal storage access system and method of multiple path data

A memory access, multi-channel technology, applied in the field of multi-channel data direct memory access system, can solve the problems of equipment performance improvement and other problems, and achieve the effect of speeding up the processing speed

Inactive Publication Date: 2005-08-10
HISILICON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there is no direct multi-channel data access method between the inside of the chip and the off-chip main memory, and single-channel access to data between the inside of the chip and the off-chip main memory is used to improve device performance in broadband applications. hinder

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  • Direct internal storage access system and method of multiple path data
  • Direct internal storage access system and method of multiple path data
  • Direct internal storage access system and method of multiple path data

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Embodiment Construction

[0047] Below according to accompanying drawing and embodiment, the present invention is described in further detail:

[0048] according to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 :

[0049] In the present invention, as figure 1 , figure 2 and Image 6 As shown, the direct access processing module includes a receiving DMA module 21 and a sending DMA module 22; the receiving DMA module 21 has a FREE_FIFO memory, a DONE_FIFO memory and a configuration RAM memory, as well as control logic for access control, and the FREE_FIFO memory is used to store idle Queue descriptor Free QueueDescriptor, DONE_FIFO memory is used to store the completion queue descriptor;

[0050] In the sending DMA module 22, there are PENDING_FIFO memory, DONE_FIFO memory and configuration RAM memory, and the control logic for access control, PENDING_FIFO memory is used to store the queue de...

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Abstract

This invention relates to a multichannel data direct internal memory access system and a method of a digital information transmission which receives data of every channel discontinuously with a DMA receive module utilizing data structure information of idle array descriptors and finished array descriptors, when numbers of the idle array descriptors are less than a set threshold in FREE-FIFO, a module is controlled from the idle array outside the chip by the bus interface control module according to the internal read-idle array pointer timely regulated. When sending DMA module, the array descriptor and arranged RAM, and the data structure information of the data packet descriptor to be sent is sent by a DMA module to multichannel.

Description

technical field [0001] The invention relates to the transmission of digital information, in particular to a multi-channel data direct memory access system and method. Background technique [0002] In the prior art, there is no multi-channel data direct access method between the internal chip and the off-chip main memory, and the single-channel data access between the internal chip and the off-chip main memory can improve device performance in broadband applications. hinder. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a multi-channel data direct memory access system and method for realizing the multi-channel discontinuous data direct access between the internal chip and the off-chip main memory. [0004] The technical scheme adopted by the present invention is: this multi-channel data direct memory access system includes a data processing module, a bus interface module, an off-chip main memory and a channel, and is characterized in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/02
Inventor 胡骎程明强
Owner HISILICON TECH