JPS5572245A - Data transmission system for crt display unit - Google Patents
Data transmission system for crt display unitInfo
- Publication number
- JPS5572245A JPS5572245A JP14695878A JP14695878A JPS5572245A JP S5572245 A JPS5572245 A JP S5572245A JP 14695878 A JP14695878 A JP 14695878A JP 14695878 A JP14695878 A JP 14695878A JP S5572245 A JPS5572245 A JP S5572245A
- Authority
- JP
- Japan
- Prior art keywords
- bus
- unit
- units
- crt display
- channel
- 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.)
- Granted
Links
Abstract
PURPOSE: To secure any other operation on I/O bus to the auxiliary memory unit of a data processor even from a CRT display unit via a dedicated bus by relieving a burden upon the data processor by making the cross-call possible.
CONSTITUTION: Data processor 1 is composed of arithmetic controller 101, main memory 102 and channel unit 103; and unit 101 is connected to general I/O bus 2, where CRT display units 31...3n and other I/O units are connected. To channel unit 103, channel bus 4 is connected and to this bus 4, auxiliary memory unit 6 is connected by way of channel interface 51 and control circuit 52. Further, dedicated CRT bus 7 is connected to control circuit 52 through CRT interface 53 and bus 7 is units 31 and 3n, using unit 6, among units 31...3n. Then, it is made possible to call unit 6 even from units 31 and 3n via bus 7, thereby relieving a burden upon processor 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14695878A JPS5572245A (en) | 1978-11-27 | 1978-11-27 | Data transmission system for crt display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14695878A JPS5572245A (en) | 1978-11-27 | 1978-11-27 | Data transmission system for crt display unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5572245A true JPS5572245A (en) | 1980-05-30 |
JPS6115450B2 JPS6115450B2 (en) | 1986-04-24 |
Family
ID=15419420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14695878A Granted JPS5572245A (en) | 1978-11-27 | 1978-11-27 | Data transmission system for crt display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572245A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137043A (en) * | 1982-02-09 | 1983-08-15 | Fujitsu Ltd | Display control system |
JPS60138634A (en) * | 1983-12-26 | 1985-07-23 | Mitsubishi Electric Corp | Signal processor |
-
1978
- 1978-11-27 JP JP14695878A patent/JPS5572245A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137043A (en) * | 1982-02-09 | 1983-08-15 | Fujitsu Ltd | Display control system |
JPH0373896B2 (en) * | 1982-02-09 | 1991-11-25 | ||
JPS60138634A (en) * | 1983-12-26 | 1985-07-23 | Mitsubishi Electric Corp | Signal processor |
Also Published As
Publication number | Publication date |
---|---|
JPS6115450B2 (en) | 1986-04-24 |
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