JPS5794823A - Bus connecting system - Google Patents

Bus connecting system

Info

Publication number
JPS5794823A
JPS5794823A JP17129780A JP17129780A JPS5794823A JP S5794823 A JPS5794823 A JP S5794823A JP 17129780 A JP17129780 A JP 17129780A JP 17129780 A JP17129780 A JP 17129780A JP S5794823 A JPS5794823 A JP S5794823A
Authority
JP
Japan
Prior art keywords
bus
master
slave
order
low
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
JP17129780A
Other languages
Japanese (ja)
Inventor
Hiroshi Onodera
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 JP17129780A priority Critical patent/JPS5794823A/en
Publication of JPS5794823A publication Critical patent/JPS5794823A/en
Pending 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
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4027—Coupling between buses using bus bridges

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)

Abstract

PURPOSE:To realize the control of connection between high-order and low-order buses and furthermore to eliminate the ideas like systems 0, 1 and the others, by connecting the low-order master bus to the high-order master bus and the low- order slave bus to the low-order slave bus, respectively. CONSTITUTION:A main display FF set instruction of a bus controller BC100 of system 0 sets a man display FF101 and at the same time resets a main display FF201 of a bus controller BC200 of system 1. The output of the main FF is connected to a master/slave display line 300' of a bus 300 of system 0 for the controller BC100 and to a master/slave display line 301' of a bus 301 of system 1 for the controller BC200, respectively. The master/slave displays of systems 0 and 1 are exclusively set, and the buses set to the master/slave lines 1 and 0 are used as the master and slave buses respectively.
JP17129780A 1980-12-04 1980-12-04 Bus connecting system Pending JPS5794823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17129780A JPS5794823A (en) 1980-12-04 1980-12-04 Bus connecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17129780A JPS5794823A (en) 1980-12-04 1980-12-04 Bus connecting system

Publications (1)

Publication Number Publication Date
JPS5794823A true JPS5794823A (en) 1982-06-12

Family

ID=15920676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17129780A Pending JPS5794823A (en) 1980-12-04 1980-12-04 Bus connecting system

Country Status (1)

Country Link
JP (1) JPS5794823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319663A2 (en) * 1987-12-07 1989-06-14 Bull HN Information Systems Inc. Bidirectional control signalling bus interface apparatus for transmitting signals between two bus system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0319663A2 (en) * 1987-12-07 1989-06-14 Bull HN Information Systems Inc. Bidirectional control signalling bus interface apparatus for transmitting signals between two bus system

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