JPS55146551A - Information processing unit - Google Patents
Information processing unitInfo
- Publication number
- JPS55146551A JPS55146551A JP5245779A JP5245779A JPS55146551A JP S55146551 A JPS55146551 A JP S55146551A JP 5245779 A JP5245779 A JP 5245779A JP 5245779 A JP5245779 A JP 5245779A JP S55146551 A JPS55146551 A JP S55146551A
- Authority
- JP
- Japan
- Prior art keywords
- register
- address
- write
- change
- cache 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
Landscapes
- Retry When Errors Occur (AREA)
Abstract
PURPOSE: To obtain an information processing unit which is able to carry out a retrial easily, by holding the address until a write error check is finished, in case of write processing to a main memory.
CONSTITUTION: At the time of write processing, an address 50 is provided not only to a cache memory 3 which operates as a buffer, through a change-over circuit 1, but also to a register 7 and a main memory 9 through an address register 5. As a result of the foregoing, a control circuit 8 writes a data from a bus 53 in the main memory 9 through a change-over circuit 2, the cache memory 3, a change-over circuit 4 and a data register 6. The register 7 holds a write address until the write processing is finished, the control circuit 8 sends the address which has been held in the register 7, through the change-over circuit 1 to the cache memory 3 and the address register 5, when a write error information is received from a processor, and the rewrite processing is executed by reading out a data in the cache memory 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5245779A JPS55146551A (en) | 1979-05-01 | 1979-05-01 | Information processing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5245779A JPS55146551A (en) | 1979-05-01 | 1979-05-01 | Information processing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55146551A true JPS55146551A (en) | 1980-11-14 |
Family
ID=12915239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5245779A Pending JPS55146551A (en) | 1979-05-01 | 1979-05-01 | Information processing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55146551A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63206846A (en) * | 1987-02-24 | 1988-08-26 | Fujitsu Ltd | Memory access rerun system |
-
1979
- 1979-05-01 JP JP5245779A patent/JPS55146551A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63206846A (en) * | 1987-02-24 | 1988-08-26 | Fujitsu Ltd | Memory access rerun system |
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