JPS5644258A - Controller for network control unit - Google Patents

Controller for network control unit

Info

Publication number
JPS5644258A
JPS5644258A JP12137679A JP12137679A JPS5644258A JP S5644258 A JPS5644258 A JP S5644258A JP 12137679 A JP12137679 A JP 12137679A JP 12137679 A JP12137679 A JP 12137679A JP S5644258 A JPS5644258 A JP S5644258A
Authority
JP
Japan
Prior art keywords
cpu
control
iochc
channels
network control
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
JP12137679A
Other languages
Japanese (ja)
Inventor
Yuji Mochimaru
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12137679A priority Critical patent/JPS5644258A/en
Publication of JPS5644258A publication Critical patent/JPS5644258A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G06F15/163—Interprocessor communication
    • G06F15/17—Interprocessor communication using an input/output type connection, e.g. channel, I/O port

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To reduce the number of controllers, by adding a selection means and by providing a controller for network control in the information processing unit (CPU). CONSTITUTION:Controllers NCUA and NCUA' for control unit which occupy one I/O channels IOCHC and IOCHC' for control of information processing units CPU and CPU' are connected to one I/O channels IOCHC and IOCHC' for control of corresponding CPU and CPU'. I/O channels IOCH1, IOCH2, IOCH1', and IOCH2' for communication in CPU and CPU' are connected to network control units NCU1, NCU2, NCU1' and NCU2' through communication control units CCU1' and CCU2' and MODEMs MODEM1, MODEM2, MODEM1', and MODEM2'. One of NCUs is connected to the NCU for information transmission and receiving light by selecting units SW and SW', thus performing connection control without increasing the number of NCUAs.
JP12137679A 1979-09-20 1979-09-20 Controller for network control unit Pending JPS5644258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12137679A JPS5644258A (en) 1979-09-20 1979-09-20 Controller for network control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12137679A JPS5644258A (en) 1979-09-20 1979-09-20 Controller for network control unit

Publications (1)

Publication Number Publication Date
JPS5644258A true JPS5644258A (en) 1981-04-23

Family

ID=14809689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12137679A Pending JPS5644258A (en) 1979-09-20 1979-09-20 Controller for network control unit

Country Status (1)

Country Link
JP (1) JPS5644258A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501923A (en) * 1981-12-01 1983-11-10 バロ−ス・コ−ポレ−ション Interface circuit for subsystem controller
JPS5965921U (en) * 1982-10-26 1984-05-02 トヨタ自動車株式会社 Exhaust gas purification device
JP4747843B2 (en) * 2003-10-21 2011-08-17 セイコーエプソン株式会社 Check valve, pump with check valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501923A (en) * 1981-12-01 1983-11-10 バロ−ス・コ−ポレ−ション Interface circuit for subsystem controller
JPS5965921U (en) * 1982-10-26 1984-05-02 トヨタ自動車株式会社 Exhaust gas purification device
JP4747843B2 (en) * 2003-10-21 2011-08-17 セイコーエプソン株式会社 Check valve, pump with check valve

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