JPS5663629A - Buffer control device - Google Patents
Buffer control deviceInfo
- Publication number
- JPS5663629A JPS5663629A JP13903979A JP13903979A JPS5663629A JP S5663629 A JPS5663629 A JP S5663629A JP 13903979 A JP13903979 A JP 13903979A JP 13903979 A JP13903979 A JP 13903979A JP S5663629 A JPS5663629 A JP S5663629A
- Authority
- JP
- Japan
- Prior art keywords
- equipment
- data
- counter
- dialogue
- peripheral
- 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
- Information Transfer Systems (AREA)
Abstract
PURPOSE: To reduce the load of the peripheral control equipment, by providing the buffer memory BM between the peripheral control equipment and the peripheral equipment, and automatically executing the dialogue of a data between this BM and the peripheral equipment.
CONSTITUTION: CPU1 sets a prescribed value and a writed output to the counter 9 and the FF6, respectively, through the peripheral control equipment 2, and writes a data of prescribed byte to BM3. When the peripheral equipment 5 is in an available state, if a data is written to the BM3, the dialogue control 8 operates by an output of the FF6, and controls so that the dialogue can be automatically executed between the BM3 and the equipment 5. Whenever the dialogue of 1 byte each of a data is executed to the equipment from the memory BM3, the counter is subtracted by "1" each. When the counter 9 has reached the prescribed value, a set signal is sent out to the FF14 from the comparator 11, the end report is executed to the equipment 2 from the FF14, the next data is transferred, and when the counter 9 underflows, the FF12 is set, and it is reported to the equipment 2 that the data transfer has been all finished.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13903979A JPS5663629A (en) | 1979-10-27 | 1979-10-27 | Buffer control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13903979A JPS5663629A (en) | 1979-10-27 | 1979-10-27 | Buffer control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5663629A true JPS5663629A (en) | 1981-05-30 |
JPS6235148B2 JPS6235148B2 (en) | 1987-07-30 |
Family
ID=15236021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13903979A Granted JPS5663629A (en) | 1979-10-27 | 1979-10-27 | Buffer control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5663629A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176816A (en) * | 1983-03-26 | 1984-10-06 | Fujitsu Ltd | Data transfer system |
JPS61265651A (en) * | 1985-05-21 | 1986-11-25 | Fujitsu Ltd | Input/output control device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0320728U (en) * | 1989-07-12 | 1991-02-28 |
-
1979
- 1979-10-27 JP JP13903979A patent/JPS5663629A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59176816A (en) * | 1983-03-26 | 1984-10-06 | Fujitsu Ltd | Data transfer system |
JPS61265651A (en) * | 1985-05-21 | 1986-11-25 | Fujitsu Ltd | Input/output control device |
JPH053615B2 (en) * | 1985-05-21 | 1993-01-18 | Fujitsu Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS6235148B2 (en) | 1987-07-30 |
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