JPS5771031A - Direct memory access coupling circuit - Google Patents

Direct memory access coupling circuit

Info

Publication number
JPS5771031A
JPS5771031A JP55146881A JP14688180A JPS5771031A JP S5771031 A JPS5771031 A JP S5771031A JP 55146881 A JP55146881 A JP 55146881A JP 14688180 A JP14688180 A JP 14688180A JP S5771031 A JPS5771031 A JP S5771031A
Authority
JP
Japan
Prior art keywords
information
interruption
emergency
transmitter
computer
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.)
Pending
Application number
JP55146881A
Other languages
Japanese (ja)
Inventor
Michio Kawai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55146881A priority Critical patent/JPS5771031A/en
Publication of JPS5771031A publication Critical patent/JPS5771031A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt
    • G06F13/26—Handling requests for interconnection or transfer for access to input/output bus using interrupt with priority control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE:To give priority to processing in a computer, by giving priority to an interruption signal for emergency information of an information transmitter by an electronic computer which fetches and processes the information of the information transmitter. CONSTITUTION:A large volume of information transmitted from information transmitters A1-An is classified into emergency information and ordinary information through switches 61-6n, and state-change detecting circuits 21-2n, and 21'- 2n' detect state changes, respectively. If a state change occurs, a signal is generated and supplied to interruption input circuits 41-4n, and 41'-4n' of a computer C' to start an on-line information processing program 5', and information from a transmitter receiving an interruption from an online information memory 3 is given to a program for fetching and processing. At this time, (n) priority levels of interruption input circuits 4 corresponding to emergency information is set higher than that of ordinary information, so the emergency information is processed firstly.
JP55146881A 1980-10-22 1980-10-22 Direct memory access coupling circuit Pending JPS5771031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146881A JPS5771031A (en) 1980-10-22 1980-10-22 Direct memory access coupling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146881A JPS5771031A (en) 1980-10-22 1980-10-22 Direct memory access coupling circuit

Publications (1)

Publication Number Publication Date
JPS5771031A true JPS5771031A (en) 1982-05-01

Family

ID=15417677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146881A Pending JPS5771031A (en) 1980-10-22 1980-10-22 Direct memory access coupling circuit

Country Status (1)

Country Link
JP (1) JPS5771031A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945570A (en) * 1982-09-06 1984-03-14 Fujitsu Ltd Access processing system
JPS62194567A (en) * 1986-02-21 1987-08-27 Nec Corp Bus acquiring system
JPS6395541A (en) * 1986-10-09 1988-04-26 Mitsubishi Electric Corp High-speed arithmetic processor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945570A (en) * 1982-09-06 1984-03-14 Fujitsu Ltd Access processing system
JPS62194567A (en) * 1986-02-21 1987-08-27 Nec Corp Bus acquiring system
JPS6395541A (en) * 1986-10-09 1988-04-26 Mitsubishi Electric Corp High-speed arithmetic processor

Similar Documents

Publication Publication Date Title
JPS5636702A (en) Terminal control system of sequence controller
JPS55157022A (en) Output circuit for microcomputer
JPS5775313A (en) Numerical controller of machine tool
JPS57150058A (en) Information processing system
JPS5580170A (en) Duplex computer system
JPS56101227A (en) Computer system
JPS5762412A (en) Output unit of programmable logic controller
JPS5527919A (en) Time setting system
JPS57199037A (en) Data way monitor device
JPS57164338A (en) Selection circuit for priority
JPS57174721A (en) Power supply controller
JPS5525123A (en) Sequential controller
JPS57211645A (en) Microprogram address controlling circuit
JPS5461846A (en) Data input processing system
JPS5493932A (en) Data transfer system for computer system
JPS5769438A (en) Processing system for commodity sale data
JPS57212559A (en) Disqueuing controller
JPS5572260A (en) Input-output device
JPS5624655A (en) Data processing device
JPS5611543A (en) Control unit of sensor input
JPS5723156A (en) Fault monitoring system of information processor
JPS56159729A (en) Key input system
JPS5550760A (en) Slave station control system in polling/selecting procedure
JPS5644920A (en) Local checking method between input and output devices
JPS6450135A (en) Fault processing system