KR950022425A - Communication Processor Board capable of DMA - Google Patents

Communication Processor Board capable of DMA Download PDF

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Publication number
KR950022425A
KR950022425A KR1019930029861A KR930029861A KR950022425A KR 950022425 A KR950022425 A KR 950022425A KR 1019930029861 A KR1019930029861 A KR 1019930029861A KR 930029861 A KR930029861 A KR 930029861A KR 950022425 A KR950022425 A KR 950022425A
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KR
South Korea
Prior art keywords
communication
dma
memory
processor
cpu
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Application number
KR1019930029861A
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Korean (ko)
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KR970002412B1 (en
Inventor
이상남
Original Assignee
이헌조
엘지전자 주식회사
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Priority to KR1019930029861A priority Critical patent/KR970002412B1/en
Publication of KR950022425A publication Critical patent/KR950022425A/en
Application granted granted Critical
Publication of KR970002412B1 publication Critical patent/KR970002412B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)

Abstract

본 발명은 통신에 필요한 프로그램을 수행하는 통신코프로세서부를 프로세서 버스에 연결하지 않고 통신에 필요한 프로그램을 저장하는 통신용 메모리(Common Cation Memory)을 통하여 프로세서(CPU)와 독립적으로 데이타가 전송되도록 DMA(Direct Memory Access)를 수행할 수 있도록 한 디엠에이(DMA)가 가능한 통신코프러세서 보드에 관한 것으로, 종래 통신코프러세서 보드는 통신프로그램을 수행하기 위해 통신코프로세서(3)가 프로세서 메모리부(2)에 저장된 명령코드를 계속 억세스하므로 프로세서버스(5)는 비지(Busy)하게 되어 CPU(1)와 독립적으로 통신을 수행하고자 할 경우 통신코프로세서부(3)가 프로세서 버스(5)를 계속 점유하고 프로세서 메모리부(2)에 저장된 명령코드를 억세스하므로 통신코프러세서 보드는 CPU(1)와 독립적으로 데이타를 전송하는 DMA기능을 정상적으로 수행하지 못하는 문제점이 있었다. 본 발명은 이와같은 종래 문제점을 해결하기 위하여 통신코프로세서부를 프로세서 버스에 연결하지 않고 통신에 필요한 프로그램을 저장하는 통신용 메모리부에 연결시켜 CPU와 독립적으로 데이타를 전송하는 DMA기능을 용이하게 수행할 수 있도록 한 것으로 통신기능을 하는 컴퓨터 시스템등에 적용한다.According to the present invention, a DMA (Direct) is used to transmit data independently of a processor (CPU) through a communication memory (Common Cation Memory) storing a program necessary for communication without connecting a communication coprocessor unit for executing a program necessary for communication to the processor bus. A communication coprocessor board capable of performing a DMA (DMA) capable of performing a memory access), the conventional communication coprocessor board has a communication coprocessor (3) is a processor memory unit (2) to perform a communication program In this case, the processor bus 5 is busy, so that the communication coprocessor unit 3 continues to occupy the processor bus 5 in order to perform communication independently from the CPU 1. And access to the command code stored in the processor memory section 2, the communication processor board has a DMA function for transferring data independently of the CPU (1). There was a problem that can not be performed normally. The present invention can easily perform the DMA function to transfer data independently of the CPU by connecting to the communication memory unit for storing the program necessary for communication without connecting the communication coprocessor unit to the processor bus in order to solve such a conventional problem It is applied to a computer system that performs a communication function.

Description

다엠에이(DMA)가 가능한 통신코프러세서 보드DMA-enabled communication processor board

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명 통신용 코프러세서 보드의 블럭 구성도.2 is a block diagram of a communication coprocessor board according to the present invention.

Claims (1)

통신용 메모리(9)에 통신에 필요한 프로그램을 라이트한 후 통신코프로세서부(3)에 인터럽트를 거는 CPU(1)와, 통신수행을 위한 프로세서 메모리부(2)와 CPU(1)와 독립적으로 통신데이타를 전송하며 DMA기능을 제어하는 DMA제어기(4)와, 통신에 필요한 프로그램을 수행하는 통신코프러세서부(3)와, 상기 통신코프러세서부(3)에서 수행하는 통신에 필요한 프로그램을 저장하는 통신용 메모리부(9)와 통신데이타를 임시 저장하는 데이타버퍼 메모리부(6)와, 상기 DMA제어기(4)와, 통신데이타를 저장하는 메모리 보드(7)가 시스템버스(8)에 연결되어 CPU와 독립적으로 디엠에이(DMA)가 가능한 통신코프러세서 보드.Independently communicates with the CPU 1 which interrupts the communication coprocessor unit 3 after writing a program necessary for communication in the communication memory 9, and the processor memory unit 2 and CPU 1 for performing communication. A DMA controller (4) for transferring data and controlling a DMA function, a communication coprocessor unit (3) for executing a program necessary for communication, and a program for communication performed by the communication coprocessor unit (3); The communication memory section 9 and the data buffer memory section 6 for temporarily storing the communication data, the DMA controller 4, and the memory board 7 for storing the communication data are connected to the system bus 8 to provide a CPU. Communication processor board capable of independent DMA (DMA). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930029861A 1993-12-27 1993-12-27 Communication coprocessor board capable of using dma KR970002412B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930029861A KR970002412B1 (en) 1993-12-27 1993-12-27 Communication coprocessor board capable of using dma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930029861A KR970002412B1 (en) 1993-12-27 1993-12-27 Communication coprocessor board capable of using dma

Publications (2)

Publication Number Publication Date
KR950022425A true KR950022425A (en) 1995-07-28
KR970002412B1 KR970002412B1 (en) 1997-03-05

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9065674B2 (en) * 2011-04-29 2015-06-23 Qualcomm Incorporated Multiple slimbus controllers for slimbus components
US9043634B2 (en) 2011-04-29 2015-05-26 Qualcomm Incorporated Methods, systems, apparatuses, and computer-readable media for waking a SLIMbus without toggle signal

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