JPS54136145A - Data transfer control unit - Google Patents
Data transfer control unitInfo
- Publication number
- JPS54136145A JPS54136145A JP4367178A JP4367178A JPS54136145A JP S54136145 A JPS54136145 A JP S54136145A JP 4367178 A JP4367178 A JP 4367178A JP 4367178 A JP4367178 A JP 4367178A JP S54136145 A JPS54136145 A JP S54136145A
- Authority
- JP
- Japan
- Prior art keywords
- data
- control
- cpu11
- stored
- unit
- 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)
- Communication Control (AREA)
Abstract
PURPOSE: To secure an access to the data with no interruption of the process control and others by CPU by constituting the data memory with the memory part which is the control object viewed from the arithmetic control unit and the memory part for data transmission.
CONSTITUTION: The data produced through execution of one real control by CPU11 is stored directly in 1st data memory part 24. And a direct reference is possible for part 24 for the data necessary for execution of one real control by CPU11. For transmission of the data to external unit 4 from arithmetic unit 1, CPU11 gives the control information to data transfer control part 2. Based on this information, data transfer control part 22 transfers the data of part 24 to 2nd data memory part 21. With end of all data transfer, control part 23 performs transmission to the external unit. In the case of reception, the data transmitted from external unit 4 is stored in part 21. When all data are stored, the data are stored in part 24 based on the control information given from unit 4. And CPU11 refers to the data when necessary.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53043671A JPS5918733B2 (en) | 1978-04-13 | 1978-04-13 | Data transmission/reception control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53043671A JPS5918733B2 (en) | 1978-04-13 | 1978-04-13 | Data transmission/reception control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54136145A true JPS54136145A (en) | 1979-10-23 |
JPS5918733B2 JPS5918733B2 (en) | 1984-04-28 |
Family
ID=12670298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53043671A Expired JPS5918733B2 (en) | 1978-04-13 | 1978-04-13 | Data transmission/reception control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5918733B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63192152A (en) * | 1987-02-04 | 1988-08-09 | Nec Corp | Data transfer system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50115738A (en) * | 1974-02-20 | 1975-09-10 | ||
JPS513742A (en) * | 1974-06-28 | 1976-01-13 | Yokogawa Electric Works Ltd | |
JPS5343672A (en) * | 1976-10-04 | 1978-04-19 | Hitachi Ltd | Treating method of cyanogenic galvanizing waste liquid containing zinc ion |
-
1978
- 1978-04-13 JP JP53043671A patent/JPS5918733B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50115738A (en) * | 1974-02-20 | 1975-09-10 | ||
JPS513742A (en) * | 1974-06-28 | 1976-01-13 | Yokogawa Electric Works Ltd | |
JPS5343672A (en) * | 1976-10-04 | 1978-04-19 | Hitachi Ltd | Treating method of cyanogenic galvanizing waste liquid containing zinc ion |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63192152A (en) * | 1987-02-04 | 1988-08-09 | Nec Corp | Data transfer system |
Also Published As
Publication number | Publication date |
---|---|
JPS5918733B2 (en) | 1984-04-28 |
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