JPS5622160A - Data processing system having additional processor - Google Patents
Data processing system having additional processorInfo
- Publication number
- JPS5622160A JPS5622160A JP9760879A JP9760879A JPS5622160A JP S5622160 A JPS5622160 A JP S5622160A JP 9760879 A JP9760879 A JP 9760879A JP 9760879 A JP9760879 A JP 9760879A JP S5622160 A JPS5622160 A JP S5622160A
- Authority
- JP
- Japan
- Prior art keywords
- processor
- line
- unit
- cpu2
- transferred
- 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)
- Advance Control (AREA)
Abstract
PURPOSE: To add the additional processor without giving a big modification to the existing system, by connecting both the data processor CPU and the additional processor to the main memory unit via the interface switching unit.
CONSTITUTION: Interface switching unit 6 is provided between main memory device 1 and CPU2. Unit 6 is connected to CPU2 via bus 8 and AA signal line 10; and also unit 6 is connected to additional processor 3 via bus 9 plus AA line 11 respectively. And the switching of unit 6 is carried out by controlling CPU3. In case logic 0 is given to line 10, the information is transferred between device 1 and CPU2. And when line 10 is in logic 1, the information is transferred between CPU2 and processor 3. And if logic 0 is applied to line 11, the information is transferred between device 1 and processor 3. In case line 11 is in logic 1, the information is transferred between processor 3 and CPU2. Thus the addition of processor 3 just means the addition of the AA line for the existing unit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9760879A JPS5622160A (en) | 1979-07-31 | 1979-07-31 | Data processing system having additional processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9760879A JPS5622160A (en) | 1979-07-31 | 1979-07-31 | Data processing system having additional processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5622160A true JPS5622160A (en) | 1981-03-02 |
Family
ID=14196926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9760879A Pending JPS5622160A (en) | 1979-07-31 | 1979-07-31 | Data processing system having additional processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5622160A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142461A (en) * | 1982-02-18 | 1983-08-24 | Nec Corp | Data system selection circuit |
JPS58186863A (en) * | 1982-04-23 | 1983-10-31 | Nec Corp | Data system selecting circuit |
JPS58186862A (en) * | 1982-04-23 | 1983-10-31 | Nec Corp | Data system selecting circuit |
JPS58205272A (en) * | 1982-05-25 | 1983-11-30 | Kokusai Electric Co Ltd | Alternate operating device for two computers with different functions |
JPS59201154A (en) * | 1983-04-18 | 1984-11-14 | モトロ−ラ・インコ−ポレ−テツド | Method and apparatus for adjusting execution of instruction by joint processor |
JPS607566A (en) * | 1983-06-25 | 1985-01-16 | Fujitsu Ltd | Data processor of multi-processor |
JPS6121564A (en) * | 1984-07-09 | 1986-01-30 | Mitsubishi Electric Corp | Process controller |
JPS61104492A (en) * | 1984-10-24 | 1986-05-22 | Sharp Corp | Processor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50136659A (en) * | 1974-04-19 | 1975-10-30 |
-
1979
- 1979-07-31 JP JP9760879A patent/JPS5622160A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50136659A (en) * | 1974-04-19 | 1975-10-30 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142461A (en) * | 1982-02-18 | 1983-08-24 | Nec Corp | Data system selection circuit |
JPS58186863A (en) * | 1982-04-23 | 1983-10-31 | Nec Corp | Data system selecting circuit |
JPS58186862A (en) * | 1982-04-23 | 1983-10-31 | Nec Corp | Data system selecting circuit |
JPS58205272A (en) * | 1982-05-25 | 1983-11-30 | Kokusai Electric Co Ltd | Alternate operating device for two computers with different functions |
JPS59201154A (en) * | 1983-04-18 | 1984-11-14 | モトロ−ラ・インコ−ポレ−テツド | Method and apparatus for adjusting execution of instruction by joint processor |
JPS607566A (en) * | 1983-06-25 | 1985-01-16 | Fujitsu Ltd | Data processor of multi-processor |
JPH0133865B2 (en) * | 1983-06-25 | 1989-07-17 | Fujitsu Ltd | |
JPS6121564A (en) * | 1984-07-09 | 1986-01-30 | Mitsubishi Electric Corp | Process controller |
JPS61104492A (en) * | 1984-10-24 | 1986-05-22 | Sharp Corp | Processor |
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