JPS563485A - Buffer memory device - Google Patents
Buffer memory deviceInfo
- Publication number
- JPS563485A JPS563485A JP7781979A JP7781979A JPS563485A JP S563485 A JPS563485 A JP S563485A JP 7781979 A JP7781979 A JP 7781979A JP 7781979 A JP7781979 A JP 7781979A JP S563485 A JPS563485 A JP S563485A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- storage
- control circuit
- access control
- 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 hold the contents of the present buffer memory and then increase the process efficiency, by inhibiting the storage of the information via the storage inhibition signal to the buffer memory.
CONSTITUTION: Buffer memory 20 stores part of the data of main memory 30 as the copy. And the address memory part, the address coincidence detecting circuit, the access control circuit to memory 30 and the writing circuit each of memory 20 are included in memory control circuit 21. Memory access control circuit 22 produces the storage inhibition signal to memory 20 in addition to the normal memory access control signal such as the memory access, the memory command. With generation of this storage inhibition signal, the storage of the information into memory 20 is inhibited in case the data or the program which will rarely be used again is read out of memory 30. Thus the unnecessary replacement is avoided for the effective information in memory 20.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7781979A JPS563485A (en) | 1979-06-20 | 1979-06-20 | Buffer memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7781979A JPS563485A (en) | 1979-06-20 | 1979-06-20 | Buffer memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS563485A true JPS563485A (en) | 1981-01-14 |
Family
ID=13644633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7781979A Pending JPS563485A (en) | 1979-06-20 | 1979-06-20 | Buffer memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS563485A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60153554A (en) * | 1984-01-23 | 1985-08-13 | Hitachi Ltd | Input/output control circuit |
JPS60246457A (en) * | 1984-05-21 | 1985-12-06 | Fujitsu Ltd | Memory access controlling circuit |
JPS6159554A (en) * | 1984-08-31 | 1986-03-27 | Hitachi Ltd | Cache memory control circuit |
-
1979
- 1979-06-20 JP JP7781979A patent/JPS563485A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60153554A (en) * | 1984-01-23 | 1985-08-13 | Hitachi Ltd | Input/output control circuit |
JPS60246457A (en) * | 1984-05-21 | 1985-12-06 | Fujitsu Ltd | Memory access controlling circuit |
JPH0347542B2 (en) * | 1984-05-21 | 1991-07-19 | Fujitsu Ltd | |
JPS6159554A (en) * | 1984-08-31 | 1986-03-27 | Hitachi Ltd | Cache memory control circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5725069A (en) | Vector data processing equipment | |
JPS5680872A (en) | Buffer memory control system | |
JPS5622172A (en) | Retrieving device for picture information | |
JPS563485A (en) | Buffer memory device | |
JPS54109728A (en) | Memory device | |
JPS54122059A (en) | Inter-processor information transfer system | |
JPS54128229A (en) | Magnetic disk control unit containing data buffer | |
JPS55103636A (en) | Display unit | |
JPS5591034A (en) | Fault detection system | |
JPS5563453A (en) | Memory system | |
JPS54161859A (en) | Program indexing system | |
JPS57189399A (en) | Storage protection device | |
JPS55105884A (en) | Address conversion device | |
JPS57103198A (en) | Storage protection system | |
JPS543437A (en) | Cash memory control system | |
JPS5533252A (en) | Memory system | |
JPS5362939A (en) | Common information control system | |
JPS55157064A (en) | Word memory system | |
JPS5564693A (en) | Buffer memory unit | |
JPS55135385A (en) | Data processing system | |
JPS5729164A (en) | Computer system | |
JPS5361236A (en) | Memory access control system | |
JPS5614358A (en) | Operation log storing system | |
JPS5567984A (en) | Pseudo virtual storage system | |
JPS57176464A (en) | Data transfer system |