JPS6491263A - Data transfer device - Google Patents

Data transfer device

Info

Publication number
JPS6491263A
JPS6491263A JP24950387A JP24950387A JPS6491263A JP S6491263 A JPS6491263 A JP S6491263A JP 24950387 A JP24950387 A JP 24950387A JP 24950387 A JP24950387 A JP 24950387A JP S6491263 A JPS6491263 A JP S6491263A
Authority
JP
Japan
Prior art keywords
bus
control circuit
data transfer
transfer
data
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
JP24950387A
Other languages
Japanese (ja)
Inventor
Yasuhisa Watanabe
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
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 filed Critical NEC Corp
Priority to JP24950387A priority Critical patent/JPS6491263A/en
Publication of JPS6491263A publication Critical patent/JPS6491263A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To simplify control and to reduce cost by transferring data of inter-bus where the number of data transfer bytes differs by the number of n-times of either bus. CONSTITUTION:A bus control circuit (A) 1 and a bus control circuit (B)2 respectively control a bus A and a bus B. A data buffer circuit 4 is connected with the bus control circuit (A)1 and the bus control circuit (B)2, and it buffers data. A data transfer control circuit 3 includes a transfer counter 31 counting the number of data transfer times inside, and controls the start, end and the number of data transfer times inside, and controls the start, end and the number of data transfer times of the bus control circuit (A)1 and the bus control circuit (B)2. The number of the transfer bytes transferred once in the bus A and that transferred once in the bus B are set to be in an n-multiplied relation, and the data transfer controller 3 controls the transfer of once on a side where the number of the transfer bytes is small with an n-times as a unit.
JP24950387A 1987-10-01 1987-10-01 Data transfer device Pending JPS6491263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24950387A JPS6491263A (en) 1987-10-01 1987-10-01 Data transfer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24950387A JPS6491263A (en) 1987-10-01 1987-10-01 Data transfer device

Publications (1)

Publication Number Publication Date
JPS6491263A true JPS6491263A (en) 1989-04-10

Family

ID=17193934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24950387A Pending JPS6491263A (en) 1987-10-01 1987-10-01 Data transfer device

Country Status (1)

Country Link
JP (1) JPS6491263A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06348646A (en) * 1993-05-28 1994-12-22 Internatl Business Mach Corp <Ibm> Method and apparatus for providing of precise and perfect communication between different bus architectures in information processing system
AU766008B2 (en) * 2001-01-23 2003-10-09 Kabushiki Kaisha Toyota Jidoshokki Manipulation levers of forklift and forklift

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5268336A (en) * 1975-12-05 1977-06-07 Hitachi Ltd Data transfer equipment
JPS5435644A (en) * 1977-08-25 1979-03-15 Hitachi Ltd Information transfer system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5268336A (en) * 1975-12-05 1977-06-07 Hitachi Ltd Data transfer equipment
JPS5435644A (en) * 1977-08-25 1979-03-15 Hitachi Ltd Information transfer system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06348646A (en) * 1993-05-28 1994-12-22 Internatl Business Mach Corp <Ibm> Method and apparatus for providing of precise and perfect communication between different bus architectures in information processing system
AU766008B2 (en) * 2001-01-23 2003-10-09 Kabushiki Kaisha Toyota Jidoshokki Manipulation levers of forklift and forklift

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