JPS5537685A - Data input system - Google Patents
Data input systemInfo
- Publication number
- JPS5537685A JPS5537685A JP11116978A JP11116978A JPS5537685A JP S5537685 A JPS5537685 A JP S5537685A JP 11116978 A JP11116978 A JP 11116978A JP 11116978 A JP11116978 A JP 11116978A JP S5537685 A JPS5537685 A JP S5537685A
- Authority
- JP
- Japan
- Prior art keywords
- data
- input
- signal
- signals
- multiplexer
- 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
- Microcomputers (AREA)
Abstract
PURPOSE: To make it possible to select required data from several different data easily and inexpensively and then to input it, by reading input data after output an input data selective signal in input instruction execution corresponding to an input instruction.
CONSTITUTION: A function of outputting several input data selective signals is provided and in input instruction execution, input data selective signals S1 and S2 are outputted which correspond to an input instruction. The moment those signals are inputted to multiplexer 2 as selective signals for multiplexer 2, data A and B are transmitted from multiplexer 2 to the input port of data processor 1 corresponding to the signals. Data processor 1 is provided with two input instructions READ1 and READ2. When READ1 is executed, signal S1 is outputted and data A is read into input register R. Then, signal S1 is reset. When READ2 is executed, on the other hand, signal S2 is outputted and data B is read. Therefore, required data can selectively be inputted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11116978A JPS5537685A (en) | 1978-09-08 | 1978-09-08 | Data input system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11116978A JPS5537685A (en) | 1978-09-08 | 1978-09-08 | Data input system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5537685A true JPS5537685A (en) | 1980-03-15 |
Family
ID=14554220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11116978A Pending JPS5537685A (en) | 1978-09-08 | 1978-09-08 | Data input system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5537685A (en) |
-
1978
- 1978-09-08 JP JP11116978A patent/JPS5537685A/en active Pending
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