JPS55119727A - Data bus control unit - Google Patents

Data bus control unit

Info

Publication number
JPS55119727A
JPS55119727A JP2790479A JP2790479A JPS55119727A JP S55119727 A JPS55119727 A JP S55119727A JP 2790479 A JP2790479 A JP 2790479A JP 2790479 A JP2790479 A JP 2790479A JP S55119727 A JPS55119727 A JP S55119727A
Authority
JP
Japan
Prior art keywords
data
gate
data bus
processors
control unit
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
JP2790479A
Other languages
Japanese (ja)
Inventor
Takeshi Osawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2790479A priority Critical patent/JPS55119727A/en
Publication of JPS55119727A publication Critical patent/JPS55119727A/en
Pending legal-status Critical Current

Links

Landscapes

  • Multi Processors (AREA)
  • Information Transfer Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To increase the transfer efficiency, by inserting the bidirectional gate to the data bus among the data processors adjacent each other and enabling the direct data transfer between arbitrary data processors.
CONSTITUTION: In case of data transfer for a plurality of data processors, e.g., 11... 15, the units 11...15 are connected to the common data bus 2. Further, the bidirectional gates 51...56 are respectively inserted to the data bus between the adjacent data processors. The gate control unit 6 respectively decodes the control data indicating the gate switching of each one different in the data transfer direction among two bidirectional gate inserted between the output gate switching and the adjacent data processors every unit 11...16, and each gate is controlled at the same time with this decoded output. Thus, the data can be transferred directly from an arbitrary data processor to other arbitrary data processor to enable to increase the transfer efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP2790479A 1979-03-10 1979-03-10 Data bus control unit Pending JPS55119727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2790479A JPS55119727A (en) 1979-03-10 1979-03-10 Data bus control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2790479A JPS55119727A (en) 1979-03-10 1979-03-10 Data bus control unit

Publications (1)

Publication Number Publication Date
JPS55119727A true JPS55119727A (en) 1980-09-13

Family

ID=12233867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2790479A Pending JPS55119727A (en) 1979-03-10 1979-03-10 Data bus control unit

Country Status (1)

Country Link
JP (1) JPS55119727A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856066A (en) * 1981-09-30 1983-04-02 Hitachi Ltd Digital arithmetic device
JPS58199490A (en) * 1982-05-17 1983-11-19 Matsushita Electric Ind Co Ltd Semiconductor integrated circuit
JPS6197769A (en) * 1984-10-18 1986-05-16 Ricoh Co Ltd Bus controller
US5274769A (en) * 1988-08-29 1993-12-28 Fujitsu Limited System for transferring data between blocks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856066A (en) * 1981-09-30 1983-04-02 Hitachi Ltd Digital arithmetic device
JPS58199490A (en) * 1982-05-17 1983-11-19 Matsushita Electric Ind Co Ltd Semiconductor integrated circuit
JPS6197769A (en) * 1984-10-18 1986-05-16 Ricoh Co Ltd Bus controller
US5274769A (en) * 1988-08-29 1993-12-28 Fujitsu Limited System for transferring data between blocks

Similar Documents

Publication Publication Date Title
JPS52130246A (en) Memory access control system
JPS55129847A (en) Access system of memory unit
JPS55119727A (en) Data bus control unit
JPS5223235A (en) Input/output multiprocessor
JPS53105947A (en) Data transfer system by bank switching of memory
JPS5311539A (en) Information transfer system
JPS55115151A (en) Duplex system
JPS5429534A (en) Adding system of optional functions to composite terminal
JPS5697121A (en) Bus control system
JPS5563423A (en) Data transfer system
JPS5356936A (en) Transfer control system
JPS52110537A (en) Multiple data processing system
JPS53112041A (en) Data processor
JPS52149932A (en) Channel interrupt control system
JPS5384657A (en) Multiprocessor system
JPS53142840A (en) Data processor
JPS546433A (en) Dma transfer circuit
JPS55119749A (en) Retry control system
JPS55150032A (en) Data transfer system
JPS5294040A (en) Data processing unit
JPS5346243A (en) Processor control system
JPS52110541A (en) Multiple data processing system
JPS57185552A (en) Switching device for memory bank in microcomputer system
JPS5363941A (en) Input/output system
JPS5372540A (en) Interface circuit