CA2112001A1 - Universal Protocol Programmable Communications Interface - Google Patents

Universal Protocol Programmable Communications Interface

Info

Publication number
CA2112001A1
CA2112001A1 CA2112001A CA2112001A CA2112001A1 CA 2112001 A1 CA2112001 A1 CA 2112001A1 CA 2112001 A CA2112001 A CA 2112001A CA 2112001 A CA2112001 A CA 2112001A CA 2112001 A1 CA2112001 A1 CA 2112001A1
Authority
CA
Canada
Prior art keywords
interface
bit
communications
upc
serial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2112001A
Other languages
French (fr)
Other versions
CA2112001C (en
Inventor
Shabtai Evan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Inc USA
Original Assignee
Shabtai Evan
Abb Systems Control Company Inc.
Abb Power T&D Company, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shabtai Evan, Abb Systems Control Company Inc., Abb Power T&D Company, Inc. filed Critical Shabtai Evan
Publication of CA2112001A1 publication Critical patent/CA2112001A1/en
Application granted granted Critical
Publication of CA2112001C publication Critical patent/CA2112001C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/407—Bus networks with decentralised control
    • H04L12/417—Bus networks with decentralised control with deterministic access, e.g. token passing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)

Abstract

A general purpose programmable communications interface designed to support a wide variety of serial synchronous and asynchronous communication protocols. A
universal protocol communications (UPC) interface is designed to operate on a VME bus in conjunction with a CPU board which contains the application software that utilizes the communications capabilities of the UPC interface. Per channel DMA is available on input/output lines of the interface together with bit level control for message processing so that a variety of bit oriented communications protocols may be supported by simple reconfiguration of the receiver/
transmitter of the programmable UPC interface. In a preferred embodiment, a dynamically variable bit length shift register is used to organize the received and transmitted data into serial packets of the appropriate size on a per channel basis independent of the actual width of the shift register.
Reconfiguration for different protocols is accomplished by simply changing a bit count value stored in a bit counter which counts the number of serial data bits received or transmitted in each data word by the dynamically variable bit length shift registers of the transmit and receive circuitry.
CA002112001A 1992-12-21 1993-12-21 Universal protocol programmable communications interface Expired - Fee Related CA2112001C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US993,702 1992-12-21
US07/993,702 US5371736A (en) 1992-12-21 1992-12-21 Universal protocol programmable communications interface

Publications (2)

Publication Number Publication Date
CA2112001A1 true CA2112001A1 (en) 1994-06-22
CA2112001C CA2112001C (en) 2000-05-09

Family

ID=25539842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002112001A Expired - Fee Related CA2112001C (en) 1992-12-21 1993-12-21 Universal protocol programmable communications interface

Country Status (2)

Country Link
US (1) US5371736A (en)
CA (1) CA2112001C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114064548A (en) * 2021-11-18 2022-02-18 中车大连电力牵引研发中心有限公司 Bus bridge device for realizing communication between EXMC and VME

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Publication number Priority date Publication date Assignee Title
CN114064548A (en) * 2021-11-18 2022-02-18 中车大连电力牵引研发中心有限公司 Bus bridge device for realizing communication between EXMC and VME

Also Published As

Publication number Publication date
US5371736A (en) 1994-12-06
CA2112001C (en) 2000-05-09

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