JPS6419453A - Adapter controller - Google Patents

Adapter controller

Info

Publication number
JPS6419453A
JPS6419453A JP17612887A JP17612887A JPS6419453A JP S6419453 A JPS6419453 A JP S6419453A JP 17612887 A JP17612887 A JP 17612887A JP 17612887 A JP17612887 A JP 17612887A JP S6419453 A JPS6419453 A JP S6419453A
Authority
JP
Japan
Prior art keywords
adapter
processing
adapters
priority level
inclination
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
JP17612887A
Other languages
Japanese (ja)
Inventor
Kuniya Maedo
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 JP17612887A priority Critical patent/JPS6419453A/en
Publication of JPS6419453A publication Critical patent/JPS6419453A/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
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/122—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer

Landscapes

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

Abstract

PURPOSE:To prevent the inclination of processing among adapters by varying the processing priority level of each adapter based on the quantity of information in its internal buffer and successively switching adapters to perform the processing of the adapter having the highest processing priority level. CONSTITUTION:The priority level of each I/O adapter 213 is varied based on the quantity of data in its internal buffer 227. An I/O adapter control circuit 217 successively switches I/O adapters 213 to perform the processing of the I/O adapter 213 having the highest priority level and permits data transfer between this adapter and a magnetic disk 215. Consequently, the processing of a specific I/O adapter 213 is prevented from being kept interrupted or held. Thus, the inclination of processing among I/O adapters 213 is prevented.
JP17612887A 1987-07-15 1987-07-15 Adapter controller Pending JPS6419453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17612887A JPS6419453A (en) 1987-07-15 1987-07-15 Adapter controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17612887A JPS6419453A (en) 1987-07-15 1987-07-15 Adapter controller

Publications (1)

Publication Number Publication Date
JPS6419453A true JPS6419453A (en) 1989-01-23

Family

ID=16008157

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17612887A Pending JPS6419453A (en) 1987-07-15 1987-07-15 Adapter controller

Country Status (1)

Country Link
JP (1) JPS6419453A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03121553A (en) * 1989-10-04 1991-05-23 Matsushita Electric Ind Co Ltd Communication processing execution device
JP2009529387A (en) * 2006-03-16 2009-08-20 マルコル エルネシュティーネ ビンダー Portable applicator for collagen stimulation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03121553A (en) * 1989-10-04 1991-05-23 Matsushita Electric Ind Co Ltd Communication processing execution device
JP2009529387A (en) * 2006-03-16 2009-08-20 マルコル エルネシュティーネ ビンダー Portable applicator for collagen stimulation

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