JPS5672751A - Data transfer buffer unit - Google Patents
Data transfer buffer unitInfo
- Publication number
- JPS5672751A JPS5672751A JP15029379A JP15029379A JPS5672751A JP S5672751 A JPS5672751 A JP S5672751A JP 15029379 A JP15029379 A JP 15029379A JP 15029379 A JP15029379 A JP 15029379A JP S5672751 A JPS5672751 A JP S5672751A
- Authority
- JP
- Japan
- Prior art keywords
- stored
- data
- memory
- memory unit
- buffer memory
- 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 make it possible to update the contents of a buffer memory by selecting addresses stored in prescribed sequence by providing address storing methods that store write/read positions of information in the buffer memory independently.
CONSTITUTION: Disk controller 4 receives instructions from CPU3 and fetches commands from main memory unit 1 via main memoyr controlle 2 and under those commands, data are selectively transferred between disk device 6 and main memory unit 1 via disk control adaptor 5. This controller 4 is provided with address counters 10W13, address selecting circuit 14 that selects outputs of counters 10W13, register 16 stored with data from device 6, and registers 20W23 and memory 17 stored with data transmitted to and received from main memory unit 1 and in prescribed sequence, addresses stored in memory 17' are selected, so that the contents of the buffer memory can be updated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15029379A JPS5672751A (en) | 1979-11-20 | 1979-11-20 | Data transfer buffer unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15029379A JPS5672751A (en) | 1979-11-20 | 1979-11-20 | Data transfer buffer unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5672751A true JPS5672751A (en) | 1981-06-17 |
Family
ID=15493817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15029379A Pending JPS5672751A (en) | 1979-11-20 | 1979-11-20 | Data transfer buffer unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672751A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59111556A (en) * | 1982-12-16 | 1984-06-27 | Fujitsu Ltd | Access system of register file |
JPS61193230A (en) * | 1985-02-20 | 1986-08-27 | Hitachi Ltd | Magnetic disk controller |
US4890226A (en) * | 1984-02-29 | 1989-12-26 | Fujitsu Limited | Memory access control apparatus having empty real address storing memory and logical address/reat address pair storing memory |
-
1979
- 1979-11-20 JP JP15029379A patent/JPS5672751A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59111556A (en) * | 1982-12-16 | 1984-06-27 | Fujitsu Ltd | Access system of register file |
JPS6330653B2 (en) * | 1982-12-16 | 1988-06-20 | Fujitsu Ltd | |
US4890226A (en) * | 1984-02-29 | 1989-12-26 | Fujitsu Limited | Memory access control apparatus having empty real address storing memory and logical address/reat address pair storing memory |
JPS61193230A (en) * | 1985-02-20 | 1986-08-27 | Hitachi Ltd | Magnetic disk controller |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57101957A (en) | Storage control device | |
JPS5725069A (en) | Vector data processing equipment | |
JPS6462743A (en) | Memory access controller | |
JPS57113162A (en) | High-speed external storage device | |
JPS5672751A (en) | Data transfer buffer unit | |
JPS54122059A (en) | Inter-processor information transfer system | |
JPS5533282A (en) | Buffer control system | |
JPS55154623A (en) | Input and output control system | |
JPS5578365A (en) | Memory control unit | |
JPS5564693A (en) | Buffer memory unit | |
JPS5785148A (en) | Instruction sequence control device | |
JPS55121554A (en) | Information processing system | |
JPS54124644A (en) | Data transfer system | |
JPS5510673A (en) | Microprogram control data processor | |
JPS5794974A (en) | Buffer memory control system | |
JPS559201A (en) | Buffer memory control system | |
JPS5599652A (en) | Microprogram control unit | |
GB2008817A (en) | Data processing system including a cache store | |
JPS5730041A (en) | Control system for local memory | |
JPS6486262A (en) | Data transferring device | |
JPS5523556A (en) | Data transfer control system | |
JPS5537625A (en) | Data storing read system | |
JPS5616256A (en) | Disc cash system | |
JPS5578324A (en) | Direct memory access system | |
JPS5771044A (en) | Data buffer control system |