JPS55160385A - Additional memory control system - Google Patents
Additional memory control systemInfo
- Publication number
- JPS55160385A JPS55160385A JP6560779A JP6560779A JPS55160385A JP S55160385 A JPS55160385 A JP S55160385A JP 6560779 A JP6560779 A JP 6560779A JP 6560779 A JP6560779 A JP 6560779A JP S55160385 A JPS55160385 A JP S55160385A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- memories
- control
- additional memory
- additional
- 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.)
- Granted
Links
Landscapes
- Techniques For Improving Reliability Of Storages (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
PURPOSE: To reduce greatly hardware for control over a magnetic buffer memory by allotting an additional memory for control and that for defective loop information to the same address space.
CONSTITUTION: Memory part 200 consists of additional memory 210 for control and additional memory 220 for defective loop information. Integral control part 100 is provided with selecting circuit 106 selecting addresses of both the memories and through this selecting circuit, the addresses of both the memories are stored in the same data registers A109 and B111. Thus, both the memories can be assigned to the same address space. On the basis of defective information read out from memory 220, control part 100 reads data from main magnetic buffer memory body 300 and also reads data from CPU. The control system like this can greatly reduce hardware at the circumferences of the additional memories.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6560779A JPS55160385A (en) | 1979-05-29 | 1979-05-29 | Additional memory control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6560779A JPS55160385A (en) | 1979-05-29 | 1979-05-29 | Additional memory control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160385A true JPS55160385A (en) | 1980-12-13 |
JPS6158918B2 JPS6158918B2 (en) | 1986-12-13 |
Family
ID=13291862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6560779A Granted JPS55160385A (en) | 1979-05-29 | 1979-05-29 | Additional memory control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160385A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234639A (en) * | 1975-07-10 | 1977-03-16 | Texas Instruments Inc | Magnetic thin film memory |
JPS53108735A (en) * | 1977-02-11 | 1978-09-21 | Texas Instruments Inc | Magnetic domain unit |
-
1979
- 1979-05-29 JP JP6560779A patent/JPS55160385A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234639A (en) * | 1975-07-10 | 1977-03-16 | Texas Instruments Inc | Magnetic thin film memory |
JPS53108735A (en) * | 1977-02-11 | 1978-09-21 | Texas Instruments Inc | Magnetic domain unit |
Also Published As
Publication number | Publication date |
---|---|
JPS6158918B2 (en) | 1986-12-13 |
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