JPS5493339A - Priority control system - Google Patents

Priority control system

Info

Publication number
JPS5493339A
JPS5493339A JP15841377A JP15841377A JPS5493339A JP S5493339 A JPS5493339 A JP S5493339A JP 15841377 A JP15841377 A JP 15841377A JP 15841377 A JP15841377 A JP 15841377A JP S5493339 A JPS5493339 A JP S5493339A
Authority
JP
Japan
Prior art keywords
processing
individual sections
processing request
request
priority
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
JP15841377A
Other languages
Japanese (ja)
Other versions
JPS5721729B2 (en
Inventor
Hikari Masujima
Katsuo Uyama
Mamoru Chino
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 JP15841377A priority Critical patent/JPS5493339A/en
Publication of JPS5493339A publication Critical patent/JPS5493339A/en
Publication of JPS5721729B2 publication Critical patent/JPS5721729B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)
  • Communication Control (AREA)
  • Bus Control (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE: To completely perform the processing to the line within the range of processing ability, by providing the processing request reception control section possible for the switching of priority and by providing the common processor commonly processing a plurality of individual sections and the processing request causing processing request.
CONSTITUTION: A plurality of individual sections P1 to Pn producing the processing request and the common processing section CPU commonly processing the request from the individual sections P1 to Pn are provided. They are mutually connected via OR gate. One of the individual sections P1 to Pn of the same priority levels is selected and the processing request is controlled by transferring it to the unit CPU, and the processing request reception control section S providing the selection means Z switching the priority level in selecting the individual sections P1 to Pn is provided. With this constitution, each of the individual sections P1 to Pn is provided with FFB memorizing the priority level of processing request and the gate circuits AG1 to AG2 and OR gates inputting the signal of FFB and the control section S, and the processing is commpletely be made in the order of priority according to the range of the processing ability of CPU.
COPYRIGHT: (C)1979,JPO&Japio
JP15841377A 1977-12-30 1977-12-30 Priority control system Granted JPS5493339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15841377A JPS5493339A (en) 1977-12-30 1977-12-30 Priority control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15841377A JPS5493339A (en) 1977-12-30 1977-12-30 Priority control system

Publications (2)

Publication Number Publication Date
JPS5493339A true JPS5493339A (en) 1979-07-24
JPS5721729B2 JPS5721729B2 (en) 1982-05-10

Family

ID=15671206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15841377A Granted JPS5493339A (en) 1977-12-30 1977-12-30 Priority control system

Country Status (1)

Country Link
JP (1) JPS5493339A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787647A (en) * 1980-11-20 1982-06-01 Ricoh Co Ltd Data communication system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156849A (en) * 1974-06-06 1975-12-18
JPS50156848A (en) * 1974-06-06 1975-12-18
JPS53124939A (en) * 1977-04-08 1978-10-31 Agency Of Ind Science & Technol Request selection system
JPS5441635A (en) * 1977-09-09 1979-04-03 Hitachi Ltd Input and output control unit having priority processing mode

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156849A (en) * 1974-06-06 1975-12-18
JPS50156848A (en) * 1974-06-06 1975-12-18
JPS53124939A (en) * 1977-04-08 1978-10-31 Agency Of Ind Science & Technol Request selection system
JPS5441635A (en) * 1977-09-09 1979-04-03 Hitachi Ltd Input and output control unit having priority processing mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787647A (en) * 1980-11-20 1982-06-01 Ricoh Co Ltd Data communication system
JPS6367379B2 (en) * 1980-11-20 1988-12-26 Ricoh Kk

Also Published As

Publication number Publication date
JPS5721729B2 (en) 1982-05-10

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