JPS5477041A - Data transfer system between computer and input-output terminal equipment - Google Patents
Data transfer system between computer and input-output terminal equipmentInfo
- Publication number
- JPS5477041A JPS5477041A JP14387677A JP14387677A JPS5477041A JP S5477041 A JPS5477041 A JP S5477041A JP 14387677 A JP14387677 A JP 14387677A JP 14387677 A JP14387677 A JP 14387677A JP S5477041 A JPS5477041 A JP S5477041A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- byte
- computer
- output terminal
- input
- 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
Landscapes
- Computer And Data Communications (AREA)
Abstract
PURPOSE: To reduce the number of signal lines by dividing word-unit data on a byte unit and by transferring data via a P-S converter circuit and S-P converter circuit on a byte- unit start-stop synchronization system.
CONSTITUTION: Word-unit write data from computer A are stored on a byte unit in registers 2 and 3 of interface circuit B, converted by P-S converter circuit 6 into byte-unit start-stop synchronous series data, and transferred to input-output terminal equipment C together with address signals from address register 1. In the same way, read-out data from input-output terminal equipment C are also divided on a byte unit by register 44, converted by P-S converter circuit 45 into series data, and then fetched to computer A via interface circuit B.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52143876A JPS5953577B2 (en) | 1977-12-02 | 1977-12-02 | Data transfer method between computer and input/output terminal device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52143876A JPS5953577B2 (en) | 1977-12-02 | 1977-12-02 | Data transfer method between computer and input/output terminal device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5477041A true JPS5477041A (en) | 1979-06-20 |
JPS5953577B2 JPS5953577B2 (en) | 1984-12-26 |
Family
ID=15349052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52143876A Expired JPS5953577B2 (en) | 1977-12-02 | 1977-12-02 | Data transfer method between computer and input/output terminal device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5953577B2 (en) |
-
1977
- 1977-12-02 JP JP52143876A patent/JPS5953577B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5953577B2 (en) | 1984-12-26 |
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