JPS5672757A - Micro computer system - Google Patents
Micro computer systemInfo
- Publication number
- JPS5672757A JPS5672757A JP14972979A JP14972979A JPS5672757A JP S5672757 A JPS5672757 A JP S5672757A JP 14972979 A JP14972979 A JP 14972979A JP 14972979 A JP14972979 A JP 14972979A JP S5672757 A JPS5672757 A JP S5672757A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- keyboard
- micro computer
- mode
- computer system
- 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 further improve the significance of a micro computer system by performing program debugging, etc., by using a keyboard for monitoring and by utilizing the system for device control with a mode switch changed over.
CONSTITUTION: To common bus 16, microprocessor unit MPU, memories RAM, PROM and EPROM, interfaces PIA and ACIA, and mode switch 22 are connected and to interface PIA, keyboard 12 and device 20 to be controlled are connected. With switch 22 turned off, display unit DISP of keyboard 12 is selected for monitoring and with the switch turned on, device 20 can be controlled. Once an interruption is made, the monitor program incorporated in PROM reads the on-off state of switch 22 to select the monitor mode or control mode of device 20, thereby improving the significance of the micro computer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54149729A JPS6029423B2 (en) | 1979-11-19 | 1979-11-19 | microcomputer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54149729A JPS6029423B2 (en) | 1979-11-19 | 1979-11-19 | microcomputer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5672757A true JPS5672757A (en) | 1981-06-17 |
JPS6029423B2 JPS6029423B2 (en) | 1985-07-10 |
Family
ID=15481529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54149729A Expired JPS6029423B2 (en) | 1979-11-19 | 1979-11-19 | microcomputer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6029423B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5941077A (en) * | 1982-08-31 | 1984-03-07 | Sharp Corp | Electronic calculator |
JPS60135943U (en) * | 1984-02-20 | 1985-09-10 | 富士通株式会社 | memory reading device |
-
1979
- 1979-11-19 JP JP54149729A patent/JPS6029423B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5941077A (en) * | 1982-08-31 | 1984-03-07 | Sharp Corp | Electronic calculator |
JPS60135943U (en) * | 1984-02-20 | 1985-09-10 | 富士通株式会社 | memory reading device |
Also Published As
Publication number | Publication date |
---|---|
JPS6029423B2 (en) | 1985-07-10 |
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