JPS5539971A - Joining device - Google Patents

Joining device

Info

Publication number
JPS5539971A
JPS5539971A JP11277978A JP11277978A JPS5539971A JP S5539971 A JPS5539971 A JP S5539971A JP 11277978 A JP11277978 A JP 11277978A JP 11277978 A JP11277978 A JP 11277978A JP S5539971 A JPS5539971 A JP S5539971A
Authority
JP
Japan
Prior art keywords
access
response
access request
receiving
circuit
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
JP11277978A
Other languages
Japanese (ja)
Other versions
JPS6124742B2 (en
Inventor
Masahiko Koike
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 JP11277978A priority Critical patent/JPS5539971A/en
Publication of JPS5539971A publication Critical patent/JPS5539971A/en
Publication of JPS6124742B2 publication Critical patent/JPS6124742B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Multi Processors (AREA)
  • Bus Control (AREA)

Abstract

PURPOSE: To hold the response condition by receiving the access response from one and have a function to return the access response to the other as a joining device by joining two buses and receiving the access request from one and carrying out the access request.
CONSTITUTION: The access request receiving circuit 1 detects that the particular address range is made access by the bus 10, receives the access request and feeds the initiation command 101. The access request circuit 2 receives the initiation command 101 and feeds to the bus 20 the access request. the access response receiving circuit 3 receives the access response from the bus 20 or ehen receiving the unaccepted signal in the case of emitting the access request, the response signal 102 is emitted. The access response circuit 4 receives the response condition 102 and feeds the access response to the bus 10 and feeds the release signal 103 to release the busy condition of the access request acceptance circuit 1.
COPYRIGHT: (C)1980,JPO&Japio
JP11277978A 1978-09-12 1978-09-12 Joining device Granted JPS5539971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11277978A JPS5539971A (en) 1978-09-12 1978-09-12 Joining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11277978A JPS5539971A (en) 1978-09-12 1978-09-12 Joining device

Publications (2)

Publication Number Publication Date
JPS5539971A true JPS5539971A (en) 1980-03-21
JPS6124742B2 JPS6124742B2 (en) 1986-06-12

Family

ID=14595276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11277978A Granted JPS5539971A (en) 1978-09-12 1978-09-12 Joining device

Country Status (1)

Country Link
JP (1) JPS5539971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0343856A (en) * 1989-07-11 1991-02-25 Nec Corp System bus connecting device
JPH06223032A (en) * 1984-12-07 1994-08-12 Nec Corp Transfer controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06223032A (en) * 1984-12-07 1994-08-12 Nec Corp Transfer controller
JPH0343856A (en) * 1989-07-11 1991-02-25 Nec Corp System bus connecting device

Also Published As

Publication number Publication date
JPS6124742B2 (en) 1986-06-12

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