JPS54159829A - Information transfer control unit - Google Patents

Information transfer control unit

Info

Publication number
JPS54159829A
JPS54159829A JP6907978A JP6907978A JPS54159829A JP S54159829 A JPS54159829 A JP S54159829A JP 6907978 A JP6907978 A JP 6907978A JP 6907978 A JP6907978 A JP 6907978A JP S54159829 A JPS54159829 A JP S54159829A
Authority
JP
Japan
Prior art keywords
computer
ackf
control unit
transfer control
information transfer
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
JP6907978A
Other languages
Japanese (ja)
Other versions
JPS5930294B2 (en
Inventor
Kazuhiro Akuta
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6907978A priority Critical patent/JPS5930294B2/en
Publication of JPS54159829A publication Critical patent/JPS54159829A/en
Publication of JPS5930294B2 publication Critical patent/JPS5930294B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Bus Control (AREA)

Abstract

PURPOSE: To make the establishment of inter-computer synchronization needless and make the assignement of priority levels needless by using a bus master.
CONSTITUTION: Assuming that computer 10c has unit number 2, signal 20 becomes 1 when TS1 and TS0 are 1 and 0 respectively, and ACKF/F21 is set if REQ signal 22 is 1. As a result, since a BSY control signal becomes 1 and gate 16 of a bus master is closed, a counter holds the status quo, and ACKF/F of other units cannot be set. Consequently, when the computer has the ACKF/F set, the computer is permitted to use a common bus.
COPYRIGHT: (C)1979,JPO&Japio
JP6907978A 1978-06-07 1978-06-07 Information transfer control device Expired JPS5930294B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6907978A JPS5930294B2 (en) 1978-06-07 1978-06-07 Information transfer control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6907978A JPS5930294B2 (en) 1978-06-07 1978-06-07 Information transfer control device

Publications (2)

Publication Number Publication Date
JPS54159829A true JPS54159829A (en) 1979-12-18
JPS5930294B2 JPS5930294B2 (en) 1984-07-26

Family

ID=13392211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6907978A Expired JPS5930294B2 (en) 1978-06-07 1978-06-07 Information transfer control device

Country Status (1)

Country Link
JP (1) JPS5930294B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63238651A (en) * 1987-03-26 1988-10-04 Nec Corp Data transfer control circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126593U (en) * 1984-07-23 1986-02-17 株式会社 バンダイ traveling toy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63238651A (en) * 1987-03-26 1988-10-04 Nec Corp Data transfer control circuit

Also Published As

Publication number Publication date
JPS5930294B2 (en) 1984-07-26

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