JPS647147A - Data processing device - Google Patents
Data processing deviceInfo
- Publication number
- JPS647147A JPS647147A JP62162048A JP16204887A JPS647147A JP S647147 A JPS647147 A JP S647147A JP 62162048 A JP62162048 A JP 62162048A JP 16204887 A JP16204887 A JP 16204887A JP S647147 A JPS647147 A JP S647147A
- Authority
- JP
- Japan
- Prior art keywords
- data processing
- roms
- microprogram
- cpu
- ram
- 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
- Techniques For Improving Reliability Of Storages (AREA)
- Stored Programmes (AREA)
Abstract
PURPOSE:To enable continuation of processing even if one ROM is faulty, by storing the same microprogram in two ROMs and selectively using contents of normal one of these ROMs to execute a CPU. CONSTITUTION:A data processing device consists of a CPU 11, two ROMS 12 and 13, a RAM 14, and a load control part 15. The same microprogram is stored in ROMs 12 and 13, and the load control part 15 selects either the ROM 12 and 13 to load the stored microprogram to the RAM 14. The CPU 11 successively reads out the microprogram loaded to the RAM 14 to perform a prescribed processing. If trouble occurs in a data processing system 1, a start command is issued from a system controller 3 to a stand-by data processing system 2, and the control part 3 switches current and stand-by processing systems to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162048A JPS647147A (en) | 1987-06-29 | 1987-06-29 | Data processing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162048A JPS647147A (en) | 1987-06-29 | 1987-06-29 | Data processing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647147A true JPS647147A (en) | 1989-01-11 |
Family
ID=15747103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62162048A Pending JPS647147A (en) | 1987-06-29 | 1987-06-29 | Data processing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647147A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8082768B2 (en) | 2007-11-01 | 2011-12-27 | Sumitomo Metal Industries, Ltd. | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug |
US9352370B2 (en) | 2013-01-11 | 2016-05-31 | Nippon Steel & Sumitomo Metal Corporation | Plug for hot tube-making |
US10150147B2 (en) | 2012-07-20 | 2018-12-11 | Nippon Steel & Sumitomo Metal Corporation | Piercing plug |
-
1987
- 1987-06-29 JP JP62162048A patent/JPS647147A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8082768B2 (en) | 2007-11-01 | 2011-12-27 | Sumitomo Metal Industries, Ltd. | Piercing and rolling plug, method of regenerating such piercing and rolling plug, and equipment line for regenerating such piercing and rolling plug |
US10150147B2 (en) | 2012-07-20 | 2018-12-11 | Nippon Steel & Sumitomo Metal Corporation | Piercing plug |
US9352370B2 (en) | 2013-01-11 | 2016-05-31 | Nippon Steel & Sumitomo Metal Corporation | Plug for hot tube-making |
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