JPS6491263A - Data transfer device - Google Patents
Data transfer deviceInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-10-01 JP JP24950387A patent/JPS6491263A/en active Pending
Patent Citations (2)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0231595A3 (en) | Input/output controller for a data processing system | |
JPS6491263A (en) | Data transfer device | |
JPS5338937A (en) | Address conversion mechanism of electronic computer system | |
JPS56110125A (en) | Data processing device | |
JPS5745606A (en) | Sequence controller having function extending performance | |
JPS6448160A (en) | Serial interface control system | |
JPS53139941A (en) | Connection system for input and output control unit | |
JPS6428735A (en) | Interruption control system | |
JPS5685176A (en) | Picture data compressing device | |
JPS5613852A (en) | Two-way data bus | |
JPS54101631A (en) | Bus control system | |
JPS5714944A (en) | Input/output sysytem | |
JPS5783836A (en) | Check system for data transferring error | |
JPS57206949A (en) | Data processing device | |
JPS6467047A (en) | Data input/output device | |
JPS643706A (en) | Controller | |
JPS5391642A (en) | Test system for micro computer unit | |
JPS6472254A (en) | Data transfer control system | |
JPS57164355A (en) | Input and output interface device | |
JPS6455690A (en) | Card device | |
JPS57164325A (en) | High speed data processor | |
JPS568984A (en) | Information transmission system of key telephone set | |
JPS5760435A (en) | Data transfer controlling system | |
JPS6476259A (en) | Control system for dual cpu system | |
JPS6467665A (en) | Information processor |