JPS5536830A - Multiprocessor control system of copier - Google Patents
Multiprocessor control system of copierInfo
- Publication number
- JPS5536830A JPS5536830A JP10966178A JP10966178A JPS5536830A JP S5536830 A JPS5536830 A JP S5536830A JP 10966178 A JP10966178 A JP 10966178A JP 10966178 A JP10966178 A JP 10966178A JP S5536830 A JPS5536830 A JP S5536830A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- bus line
- changeover
- circuit
- copier
- 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
- Control Or Security For Electrophotography (AREA)
- Programmable Controllers (AREA)
Abstract
PURPOSE: To enable data exchange between one CPU and another without restricting action of each CPU more than necessity, by connecting a plurality of CPU's through a bus line changeover device, and delivering stroboscopic signals for these changeover from each CPU input and output port.
CONSTITUTION: An embodiment example having 3 CPU's is shown in the drawing. Bus line 4 is connected to bus line 4a... and disconnected from this through bus line changeover devices 5 and 6 when necessary. Since bus line 4a... is usually disconnected, each CPU1... can be run freely without any restriction from others. For example, when data are transferred from CPU1 to CPU2, a stroboscopic signal produced from the I/0 port of CPU1 is transmitted via an OR circuit to bus line changeover device 5 to connect bus lines 4a and 4b, while CPU2 is held through OR circuit 10 and the line of CPU2 is stopped till data transfer is finished.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10966178A JPS5536830A (en) | 1978-09-08 | 1978-09-08 | Multiprocessor control system of copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10966178A JPS5536830A (en) | 1978-09-08 | 1978-09-08 | Multiprocessor control system of copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5536830A true JPS5536830A (en) | 1980-03-14 |
Family
ID=14515944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10966178A Pending JPS5536830A (en) | 1978-09-08 | 1978-09-08 | Multiprocessor control system of copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5536830A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02132873U (en) * | 1989-04-10 | 1990-11-05 |
-
1978
- 1978-09-08 JP JP10966178A patent/JPS5536830A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02132873U (en) * | 1989-04-10 | 1990-11-05 |
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