JPS54128637A - Control system for cash memory - Google Patents
Control system for cash memoryInfo
- Publication number
- JPS54128637A JPS54128637A JP3609378A JP3609378A JPS54128637A JP S54128637 A JPS54128637 A JP S54128637A JP 3609378 A JP3609378 A JP 3609378A JP 3609378 A JP3609378 A JP 3609378A JP S54128637 A JPS54128637 A JP S54128637A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- cash
- unit
- counter
- main 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 perform good efficient control, by performing the initialization of the main memory and cash memory and the refresh control of the main memory with one circuit, and changing the handling of the cash memory with the nature of the memory access request.
CONSTITUTION: In the data processing unit having the cash memory, the memory control unit 65 performing initialization of the main memory 2 and cash memory and the refresh operation, is provided, and the unit 65 is provided with the binary counter 61 used as the address register and the flag 64 set until the end of initial set, after the power application of the power supply to the data register 63 and the unit 65. Further, when the power supply is applied to the unit 65, the counter 61 is set, count is up at initial set, and when the flag 64 is set, the output of the counter 61 is fed to the cash memory control section 9 and the memory bus control section 62 to perform write-in for the main memory and cash memory. When the flag 64 is reset, the output of the counter 61 is used for refresh of the main memory.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3609378A JPS54128637A (en) | 1978-03-30 | 1978-03-30 | Control system for cash memory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3609378A JPS54128637A (en) | 1978-03-30 | 1978-03-30 | Control system for cash memory |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54128637A true JPS54128637A (en) | 1979-10-05 |
Family
ID=12460129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3609378A Pending JPS54128637A (en) | 1978-03-30 | 1978-03-30 | Control system for cash memory |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54128637A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5829061A (en) * | 1981-08-17 | 1983-02-21 | Fujitsu Ltd | Disc cache controller |
-
1978
- 1978-03-30 JP JP3609378A patent/JPS54128637A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5829061A (en) * | 1981-08-17 | 1983-02-21 | Fujitsu Ltd | Disc cache controller |
JPH0323939B2 (en) * | 1981-08-17 | 1991-04-02 | Fujitsu Ltd |
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