JPS57109024A - Interface controlling system - Google Patents

Interface controlling system

Info

Publication number
JPS57109024A
JPS57109024A JP18616080A JP18616080A JPS57109024A JP S57109024 A JPS57109024 A JP S57109024A JP 18616080 A JP18616080 A JP 18616080A JP 18616080 A JP18616080 A JP 18616080A JP S57109024 A JPS57109024 A JP S57109024A
Authority
JP
Japan
Prior art keywords
channel
interface part
centralized interface
channel number
decodes
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
JP18616080A
Other languages
Japanese (ja)
Other versions
JPS6024495B2 (en
Inventor
Kazumi Yotsuda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP18616080A priority Critical patent/JPS6024495B2/en
Publication of JPS57109024A publication Critical patent/JPS57109024A/en
Publication of JPS6024495B2 publication Critical patent/JPS6024495B2/en
Expired 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
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network

Landscapes

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

Abstract

PURPOSE:To simplify circuit constitution by interposing a centralized interface part 12 between a service processor and channel devices, and by indirectly controlling the individual channel devices by the centralized interface part. CONSTITUTION:When address information is sent from a service processor 2 to a centralized interface part 12, a decoder 4' decodes which channel device 3' the address information corresponds to, and controls at least gate circuits 8, 9 and 17. Then, channel number information in data information is set in a channel number register 15 through the gate circuit 17. A decoder 16 decodes the channel number information set in the register 15 and output a signal ''1'' to a corresponding channel device 3'. Consequently, the corresponding device 3' and processor 2 are connected mutually.
JP18616080A 1980-12-26 1980-12-26 Interface control method Expired JPS6024495B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18616080A JPS6024495B2 (en) 1980-12-26 1980-12-26 Interface control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18616080A JPS6024495B2 (en) 1980-12-26 1980-12-26 Interface control method

Publications (2)

Publication Number Publication Date
JPS57109024A true JPS57109024A (en) 1982-07-07
JPS6024495B2 JPS6024495B2 (en) 1985-06-13

Family

ID=16183426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18616080A Expired JPS6024495B2 (en) 1980-12-26 1980-12-26 Interface control method

Country Status (1)

Country Link
JP (1) JPS6024495B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142764A (en) * 1983-12-29 1985-07-27 Hitachi Ltd Computer interface system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60142764A (en) * 1983-12-29 1985-07-27 Hitachi Ltd Computer interface system
JPH0115102B2 (en) * 1983-12-29 1989-03-15 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6024495B2 (en) 1985-06-13

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