JPS54126436A - Additional processing unit connection system - Google Patents
Additional processing unit connection systemInfo
- Publication number
- JPS54126436A JPS54126436A JP3433278A JP3433278A JPS54126436A JP S54126436 A JPS54126436 A JP S54126436A JP 3433278 A JP3433278 A JP 3433278A JP 3433278 A JP3433278 A JP 3433278A JP S54126436 A JPS54126436 A JP S54126436A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- cpu
- additional processing
- bus
- processing unit
- 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
- Advance Control (AREA)
- Multi Processors (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE: To make it possible to connect logically a CPU and an additional processing unit by switching, by providing a means to store the unit number and a means to compare the unit number in the system where the CPU and the additional processing unit are connected by a single bus.
CONSTITUTION: Memory units 1, CPUs 2 and 3, and additional processing units 4 and 5 are connected by single bus 101. In units 3 and 5, values of channel number setting switches 7 are so set that they may be different from each other, and are stored in memory circuits 6. When fetching and decoding an instruction from memory unit 1, CPU 2 transmits the channel number, which is given to unit 4, through the address information line of bus 101. When the number set by switch 7 of unit 4 and the number given from bus 101 agree with each other, a coincidence signal is issued from comparator circuit 8 to select unit 4. Then, CPU 2 transmits the channel number and a channel switching command having disconnection information to unit 4 to disconnect unit 4, and next, a channel switching command having connection information is outputted to unit 5 to connect the CPU and unit 5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3433278A JPS54126436A (en) | 1978-03-24 | 1978-03-24 | Additional processing unit connection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3433278A JPS54126436A (en) | 1978-03-24 | 1978-03-24 | Additional processing unit connection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54126436A true JPS54126436A (en) | 1979-10-01 |
Family
ID=12411181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3433278A Pending JPS54126436A (en) | 1978-03-24 | 1978-03-24 | Additional processing unit connection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54126436A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6021692A (en) * | 1983-07-15 | 1985-02-04 | Matsushita Electric Works Ltd | Multiplex transmission system |
JPS6174144U (en) * | 1980-07-30 | 1986-05-20 | ||
JPS62226263A (en) * | 1986-03-27 | 1987-10-05 | Nec Corp | Multiprocessor device |
JPS63157238A (en) * | 1986-12-22 | 1988-06-30 | Fuji Electric Co Ltd | Computer |
-
1978
- 1978-03-24 JP JP3433278A patent/JPS54126436A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6174144U (en) * | 1980-07-30 | 1986-05-20 | ||
JPS6021692A (en) * | 1983-07-15 | 1985-02-04 | Matsushita Electric Works Ltd | Multiplex transmission system |
JPH0342757B2 (en) * | 1983-07-15 | 1991-06-28 | ||
JPS62226263A (en) * | 1986-03-27 | 1987-10-05 | Nec Corp | Multiprocessor device |
JPS63157238A (en) * | 1986-12-22 | 1988-06-30 | Fuji Electric Co Ltd | Computer |
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