JPS5642867A - Data exchange system for microcomputer system - Google Patents
Data exchange system for microcomputer systemInfo
- Publication number
- JPS5642867A JPS5642867A JP11799279A JP11799279A JPS5642867A JP S5642867 A JPS5642867 A JP S5642867A JP 11799279 A JP11799279 A JP 11799279A JP 11799279 A JP11799279 A JP 11799279A JP S5642867 A JPS5642867 A JP S5642867A
- Authority
- JP
- Japan
- Prior art keywords
- data exchange
- bus
- common memory
- memory
- 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
- Information Transfer Systems (AREA)
- Multi Processors (AREA)
Abstract
PURPOSE: To carry out the data exchange under a simple control between the CPUs in the multiprocessor system, by providing the common memory bus line switching unit.
CONSTITUTION: When the common memory bus switching unit SW is connected to the side of (a), the RAM-G functioning as the common memory functions as the memory of the central processor unit CPU-A via the exclusive bus PB-A. And in case the unit SW is connected to the side of (b), the RAM-G functions as the memory of the central processor unit CPU-B via the exclusive bus PB-B respectively. In such way, the common memory is connected by switching to the exclusive bus of either one of the processor units, thus ensuring a data exchange with a simple control.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11799279A JPS5642867A (en) | 1979-09-17 | 1979-09-17 | Data exchange system for microcomputer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11799279A JPS5642867A (en) | 1979-09-17 | 1979-09-17 | Data exchange system for microcomputer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642867A true JPS5642867A (en) | 1981-04-21 |
Family
ID=14725340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11799279A Pending JPS5642867A (en) | 1979-09-17 | 1979-09-17 | Data exchange system for microcomputer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642867A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5957377U (en) * | 1982-10-08 | 1984-04-14 | 積水化学工業株式会社 | rain gutter packing structure |
JPS62163185A (en) * | 1986-01-14 | 1987-07-18 | Matsushita Electric Ind Co Ltd | Character recognizing device |
-
1979
- 1979-09-17 JP JP11799279A patent/JPS5642867A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5957377U (en) * | 1982-10-08 | 1984-04-14 | 積水化学工業株式会社 | rain gutter packing structure |
JPS62163185A (en) * | 1986-01-14 | 1987-07-18 | Matsushita Electric Ind Co Ltd | Character recognizing device |
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