JPS5694425A - Receiving data transfer control system - Google Patents
Receiving data transfer control systemInfo
- Publication number
- JPS5694425A JPS5694425A JP17367779A JP17367779A JPS5694425A JP S5694425 A JPS5694425 A JP S5694425A JP 17367779 A JP17367779 A JP 17367779A JP 17367779 A JP17367779 A JP 17367779A JP S5694425 A JPS5694425 A JP S5694425A
- Authority
- JP
- Japan
- Prior art keywords
- data
- processing unit
- buffer
- address information
- central processing
- 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
- Bus Control (AREA)
- Computer And Data Communications (AREA)
Abstract
PURPOSE: To improve the processing efficiency to cause the channel device to write receiving data during the reading of the central processing unit for contents of the data buffer, by causing the central processing unit to transfer receiving data onto the main memory efficiently when the traffic quantity is increased specially.
CONSTITUTION: Central processing unit 1 reserves plural data buffer areas 10 on main memory 2 and transfers address information of these buffer areas 10 to data buffer address holding part 8 of channel device 3 and transfers received data to receiving buffers 7-0W7-N. When data is transferred by the control of direct memory access DMA control part 6, one address information of buffer area 10 which is idle is extracted, and received data is written in memory 2 by DMA control while processing unit 1 reads data in buffer area 10 according to this address information, thus improving the processing efficiency.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17367779A JPS5694425A (en) | 1979-12-27 | 1979-12-27 | Receiving data transfer control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17367779A JPS5694425A (en) | 1979-12-27 | 1979-12-27 | Receiving data transfer control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5694425A true JPS5694425A (en) | 1981-07-30 |
Family
ID=15965045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17367779A Pending JPS5694425A (en) | 1979-12-27 | 1979-12-27 | Receiving data transfer control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5694425A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129628A (en) * | 1982-01-29 | 1983-08-02 | Nec Corp | Data channel device |
JPS60251452A (en) * | 1984-05-28 | 1985-12-12 | Kokusai Electric Co Ltd | Continuous i/o transfer method of high speed circuit data |
-
1979
- 1979-12-27 JP JP17367779A patent/JPS5694425A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129628A (en) * | 1982-01-29 | 1983-08-02 | Nec Corp | Data channel device |
JPS60251452A (en) * | 1984-05-28 | 1985-12-12 | Kokusai Electric Co Ltd | Continuous i/o transfer method of high speed circuit data |
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