JPS5450247A - Interrupt control system - Google Patents

Interrupt control system

Info

Publication number
JPS5450247A
JPS5450247A JP11709477A JP11709477A JPS5450247A JP S5450247 A JPS5450247 A JP S5450247A JP 11709477 A JP11709477 A JP 11709477A JP 11709477 A JP11709477 A JP 11709477A JP S5450247 A JPS5450247 A JP S5450247A
Authority
JP
Japan
Prior art keywords
controllers
interrupt
common bus
priority levels
signals
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
JP11709477A
Other languages
Japanese (ja)
Other versions
JPS5723284B2 (en
Inventor
Yoichi Aoki
Masayoshi Ichimura
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 JP11709477A priority Critical patent/JPS5450247A/en
Publication of JPS5450247A publication Critical patent/JPS5450247A/en
Publication of JPS5723284B2 publication Critical patent/JPS5723284B2/ja
Granted legal-status Critical Current

Links

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  • Bus Control (AREA)

Abstract

PURPOSE: To utilize a common bus with a high efficiency by constituting a system so that each channel can be accepted through the common bus by connecting successively interrupt transfer lines and giving priority levels to I/O controller.
CONSTITUTION: In the system where plural I/O controllers 2-1 to 2-n connected on common bus 3 and CPU having microprocessor 1 are connected to perform the data transfer through common bus 3, interrupt signal transfer line 6 where plural controllers 2-1 to 2-n are connected successively in series is provided. Further, priority levels are given to controllers 2-1 to 2-n in the connection order to this transfer line 6, and interrupt signals are detected by interrupt control circuit 4 provided iun CPU, and sense signals are transmitted to interrupt signal transfer line 5. Then, on condition that interrupt signals are not generated from other controllers having priority levels higher than its own level and its own interrupt signal has been generated, each of controllers 2-1 to 20n transmits the channel to common bus 3 synchronously with sense signals
COPYRIGHT: (C)1979,JPO&Japio
JP11709477A 1977-09-29 1977-09-29 Interrupt control system Granted JPS5450247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11709477A JPS5450247A (en) 1977-09-29 1977-09-29 Interrupt control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11709477A JPS5450247A (en) 1977-09-29 1977-09-29 Interrupt control system

Publications (2)

Publication Number Publication Date
JPS5450247A true JPS5450247A (en) 1979-04-20
JPS5723284B2 JPS5723284B2 (en) 1982-05-18

Family

ID=14703237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11709477A Granted JPS5450247A (en) 1977-09-29 1977-09-29 Interrupt control system

Country Status (1)

Country Link
JP (1) JPS5450247A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676848A (en) * 1979-11-28 1981-06-24 Burr Brown Res Corp Control system
JPS56101228A (en) * 1980-01-17 1981-08-13 Toshiba Corp Computer system
JPS56106317U (en) * 1980-01-17 1981-08-19
JPS63189793A (en) * 1987-02-02 1988-08-05 Mitsubishi Electric Corp Heat transfer pipe for evaporation and condensation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107831A (en) * 1974-01-30 1975-08-25
JPS5195748A (en) * 1975-01-08 1976-08-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50107831A (en) * 1974-01-30 1975-08-25
JPS5195748A (en) * 1975-01-08 1976-08-21

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676848A (en) * 1979-11-28 1981-06-24 Burr Brown Res Corp Control system
JPS633348B2 (en) * 1979-11-28 1988-01-22 Burr Brown Corp
JPS56101228A (en) * 1980-01-17 1981-08-13 Toshiba Corp Computer system
JPS56106317U (en) * 1980-01-17 1981-08-19
JPS63189793A (en) * 1987-02-02 1988-08-05 Mitsubishi Electric Corp Heat transfer pipe for evaporation and condensation

Also Published As

Publication number Publication date
JPS5723284B2 (en) 1982-05-18

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