JPS5572273A - Multi-cpu system - Google Patents
Multi-cpu systemInfo
- Publication number
- JPS5572273A JPS5572273A JP14546578A JP14546578A JPS5572273A JP S5572273 A JPS5572273 A JP S5572273A JP 14546578 A JP14546578 A JP 14546578A JP 14546578 A JP14546578 A JP 14546578A JP S5572273 A JPS5572273 A JP S5572273A
- Authority
- JP
- Japan
- Prior art keywords
- access
- memory
- arrival
- send
- cpu1
- 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
- Multi Processors (AREA)
Abstract
PURPOSE: To make it possible to attain high-efficiency access by allowing a memory handle access requests from several CPUs in the order of arrival or on the prescribed preference basis when they arrive at the same time.
CONSTITUTION: When CPUs 1 and 2 share memory 3, CPU2 is considered to send an access request right after CPU1. In this case, memory 3 allows memory access in the order of arrival or on the prescribed preference basis in case of simultaneous arrival, after access from CPU1 ends, an access end signal will be sent out. consequently, CPU can send an access request at any point in time, so that highly- efficient access can be attained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14546578A JPS5572273A (en) | 1978-11-25 | 1978-11-25 | Multi-cpu system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14546578A JPS5572273A (en) | 1978-11-25 | 1978-11-25 | Multi-cpu system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572273A true JPS5572273A (en) | 1980-05-30 |
Family
ID=15385859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14546578A Pending JPS5572273A (en) | 1978-11-25 | 1978-11-25 | Multi-cpu system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572273A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01239664A (en) * | 1988-03-22 | 1989-09-25 | Nec Corp | Common memory arbitration device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53114641A (en) * | 1977-03-16 | 1978-10-06 | Ibm | Multiple processing system |
-
1978
- 1978-11-25 JP JP14546578A patent/JPS5572273A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53114641A (en) * | 1977-03-16 | 1978-10-06 | Ibm | Multiple processing system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01239664A (en) * | 1988-03-22 | 1989-09-25 | Nec Corp | Common memory arbitration device |
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