JPS6468848A - Data logging system in controller provided with dma control function - Google Patents
Data logging system in controller provided with dma control functionInfo
- Publication number
- JPS6468848A JPS6468848A JP62227101A JP22710187A JPS6468848A JP S6468848 A JPS6468848 A JP S6468848A JP 62227101 A JP62227101 A JP 62227101A JP 22710187 A JP22710187 A JP 22710187A JP S6468848 A JPS6468848 A JP S6468848A
- Authority
- JP
- Japan
- Prior art keywords
- data
- logging
- timer
- dma control
- control function
- 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
Abstract
PURPOSE:To automatically perform the logging processing and to efficiently perform data analysis based on the dump processing, by storing extracted logging data in a shift register and setting the timer value of a timer to the leading part of logging data. CONSTITUTION:Shift registers 1 and 2 in which logging data obtained by logging reception data and/or transmission data to be transferred is stored and a timer 3 are provided; and at the time of DMA transfer of reception data and/or transmission data, extracted logging data is stored in shift registers 1 and 2 and the timer value of the timer 3 is set to the leading part of logging data. Thus, the logging processing can be performed simultaneously with data transfer at the time of data transfer based on DMA control, and data analysis at the time of dumping is effectively performed because the timer value is set to the leading part of logging data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227101A JPS6468848A (en) | 1987-09-10 | 1987-09-10 | Data logging system in controller provided with dma control function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62227101A JPS6468848A (en) | 1987-09-10 | 1987-09-10 | Data logging system in controller provided with dma control function |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6468848A true JPS6468848A (en) | 1989-03-14 |
Family
ID=16855499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62227101A Pending JPS6468848A (en) | 1987-09-10 | 1987-09-10 | Data logging system in controller provided with dma control function |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6468848A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0395642A (en) * | 1989-09-08 | 1991-04-22 | Fujitsu Ltd | Logging system |
JP2009217608A (en) * | 2008-03-11 | 2009-09-24 | Hitachi Ltd | Virtual computer system and control method therefor |
-
1987
- 1987-09-10 JP JP62227101A patent/JPS6468848A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0395642A (en) * | 1989-09-08 | 1991-04-22 | Fujitsu Ltd | Logging system |
JP2009217608A (en) * | 2008-03-11 | 2009-09-24 | Hitachi Ltd | Virtual computer system and control method therefor |
US8893122B2 (en) | 2008-03-11 | 2014-11-18 | Hitachi, Ltd. | Virtual computer system and a method of controlling a virtual computer system on movement of a virtual computer |
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