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JPS5638643A - Interruption priority processing system - Google Patents

Interruption priority processing system

Info

Publication number
JPS5638643A
JPS5638643A JP11491079A JP11491079A JPS5638643A JP S5638643 A JPS5638643 A JP S5638643A JP 11491079 A JP11491079 A JP 11491079A JP 11491079 A JP11491079 A JP 11491079A JP S5638643 A JPS5638643 A JP S5638643A
Authority
JP
Japan
Prior art keywords
priority
interruption
itself
delivery
signal line
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
JP11491079A
Other languages
Japanese (ja)
Inventor
Katsumi Uchida
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 JP11491079A priority Critical patent/JPS5638643A/en
Publication of JPS5638643A publication Critical patent/JPS5638643A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable high speed of processing and ease of change of priority, by comparing the priority information on the common interruption priority signal line between the interruption processor and the interruption request unit, with the priority of itself, and stopping the delivery of priority information when the order of itself is low.
CONSTITUTION: The output of the interruption priority number set circuit 11 delivers the priority of itself to the interruption priority signal line 4 via the interruption priority number delivery register 12. The signal line 4 is common to each interruption request unit, and the priority delivered by other units is input to the priority comparison circuit 13 through the receivers 19-0W19-3. The comparison circuit 13 sequentially compares the priority of itself 21-0W21-3 with the priority given by the other units, based on the comparison clock pulse 6 from the interruption processor, and if the priority of itself is low, the interruption priority number delivery register 12 is reset and the delivery of signal to the siganal line 4 is stopped.
COPYRIGHT: (C)1981,JPO&Japio
JP11491079A 1979-09-07 1979-09-07 Interruption priority processing system Pending JPS5638643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11491079A JPS5638643A (en) 1979-09-07 1979-09-07 Interruption priority processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11491079A JPS5638643A (en) 1979-09-07 1979-09-07 Interruption priority processing system

Publications (1)

Publication Number Publication Date
JPS5638643A true JPS5638643A (en) 1981-04-13

Family

ID=14649683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11491079A Pending JPS5638643A (en) 1979-09-07 1979-09-07 Interruption priority processing system

Country Status (1)

Country Link
JP (1) JPS5638643A (en)

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