JPS559285A - Control unit for priority - Google Patents

Control unit for priority

Info

Publication number
JPS559285A
JPS559285A JP8242478A JP8242478A JPS559285A JP S559285 A JPS559285 A JP S559285A JP 8242478 A JP8242478 A JP 8242478A JP 8242478 A JP8242478 A JP 8242478A JP S559285 A JPS559285 A JP S559285A
Authority
JP
Japan
Prior art keywords
managing section
operation request
section
unit
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.)
Pending
Application number
JP8242478A
Other languages
Japanese (ja)
Inventor
Rikuro Yoshimoto
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 JP8242478A priority Critical patent/JPS559285A/en
Publication of JPS559285A publication Critical patent/JPS559285A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To equally process the operation request from each unit and to process the request of operation selectively with priority, by providing the circuit receiving the operation request from each unit and the circuit storing the operation request received.
CONSTITUTION: The requesting unit managing section 1000 having FF1 to 4 inputting and operating the operation requests 51 to 81 from the units 5 to 8 independently operated is provided, and the operation request signals 1001 to 1004 of the output of FF1 to 4 are stored to FF11 to 14 of the requested section managing section 2000. The output of the managing section 1000 and the 2000 with this constitution is fed to the requested section managing section 3000 having the OR gate circuit 20 and the AND gate circuits 30, 40, and the transfer timing signal 41 by the output of the managing section 3000 is fed to FF11 to 14 of the managing section 2000. Further, the signal having the highest priority in the operation request hold signals 2001 to 2004 outputted from the managing section 2000 is determined with the priority determining section 4000, and the signal of the unit number 4001 having the highest priority processes equally the operation request from each unit.
COPYRIGHT: (C)1980,JPO&Japio
JP8242478A 1978-07-05 1978-07-05 Control unit for priority Pending JPS559285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8242478A JPS559285A (en) 1978-07-05 1978-07-05 Control unit for priority

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8242478A JPS559285A (en) 1978-07-05 1978-07-05 Control unit for priority

Publications (1)

Publication Number Publication Date
JPS559285A true JPS559285A (en) 1980-01-23

Family

ID=13774196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8242478A Pending JPS559285A (en) 1978-07-05 1978-07-05 Control unit for priority

Country Status (1)

Country Link
JP (1) JPS559285A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01180049A (en) * 1988-01-09 1989-07-18 Pfu Ltd Arbitrating circuit
JPH0326509U (en) * 1989-07-27 1991-03-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01180049A (en) * 1988-01-09 1989-07-18 Pfu Ltd Arbitrating circuit
JPH0326509U (en) * 1989-07-27 1991-03-18

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