Direct memory access control device and operating method for the same

A memory access and control device technology, applied in the direction of instruments, electrical digital data processing, digital transmission systems, etc., can solve problems such as lack of flexibility

Pending Publication Date: 2018-01-05
ROBERT BOSCH GMBH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Known devices for controlling direct memory access are not flexible enough for many application purposes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Direct memory access control device and operating method for the same
  • Direct memory access control device and operating method for the same
  • Direct memory access control device and operating method for the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] figure 1 A computer system 10 is shown, which here comprises a plurality of computing units 20_1 to 20_n and local memories 30_1 , 30_2 to 30_n respectively associated with these computing units 20_1 to 20_n. Furthermore, central working memory 30 is connected to bus system 12 . The working memory 30 is optionally and thus in figure 1 Drawn in dotted line. exist figure 1 The block on the left in the center represents a direct memory access controller 40 which is likewise connected to the bus system 12 via a terminal 41 . On top of the DMA control device 40, the figure 1 A control device 42 is shown in , which can control the operation of the direct memory access control device 40 .

[0076] also, figure 1 Shown is a plurality of communication modules 50_1 to 50 — n connected to the bus system 12 , which are generally also identified by reference numeral 50 . For example, an Ethernet network, a CAN bus, etc. are respectively connected to the communication modules ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a direct memory access control device and an operating method for the same. The invention relates to the direct memory access control device (40), the direct memory access control device (40) comprises a terminal for connecting the direct memory access control device (40) with a bus system which is connected with a plurality of bus users (60), and the direct memory accesscontrol device (40) comprises a control device (42) for controlling the operation of the direct memory access control device (40). The control device (42) is programmable herein.

Description

technical field [0001] The invention relates to a direct memory access control device according to the preamble of claim 1 and to a method according to the co-existing patent claims. Background technique [0002] Computing units (for example processors) are known on the market which have one or more processor cores and which optionally have access to a work memory. In addition, computer systems having one or more such computing units typically include a number of other units, such as input and output assemblies ("IO"), etc., that co-operate with the computing units. At least several of the elements of the computer system can exchange data with each other via a common (preferably parallel) bus, for example with an Ethernet structure. Furthermore, methods are known for so-called direct memory access (DMA, “direct memory access” in English), whereby data exchange via a common bus can be improved. [0003] Known devices for controlling direct memory access do not have enough f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F13/28
CPCH04L12/4625G06F13/28
InventorE.贝克尔J.内瓦尔德A.奥厄
OwnerROBERT BOSCH GMBH