JPS6417139A - Memory device - Google Patents
Memory deviceInfo
- Publication number
- JPS6417139A JPS6417139A JP62174149A JP17414987A JPS6417139A JP S6417139 A JPS6417139 A JP S6417139A JP 62174149 A JP62174149 A JP 62174149A JP 17414987 A JP17414987 A JP 17414987A JP S6417139 A JPS6417139 A JP S6417139A
- Authority
- JP
- Japan
- Prior art keywords
- data
- memory
- written
- held
- started
- 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 check whether a memory is working normally or not by performing the comparison between the data which is held when it is written into the memory and the data held when it is read out of the memory. CONSTITUTION:When a data writing action is started to a memory array part 1, the write data is written into the part 1 and also given to a data-in latch part 10. Thus the part 10 holds the write data corresponding to a memory cycle in which the data is written in the part 1. When a data reading action is started out of the part 1, a comparing part 3a compares the data read out of the part 1 and the data held by the part 10 and delivers a coincidence signal when the coincidence is obtained between both data.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62174149A JPS6417139A (en) | 1987-07-13 | 1987-07-13 | Memory device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62174149A JPS6417139A (en) | 1987-07-13 | 1987-07-13 | Memory device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6417139A true JPS6417139A (en) | 1989-01-20 |
Family
ID=15973532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62174149A Pending JPS6417139A (en) | 1987-07-13 | 1987-07-13 | Memory device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6417139A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5143364A (en) * | 1991-01-09 | 1992-09-01 | Am International, Inc. | Suction control system for printing or duplicating machines |
US5181710A (en) * | 1990-03-20 | 1993-01-26 | Sharp Kabushiki Kaisha | Top sheet feeding apparatus |
US5184812A (en) * | 1990-05-09 | 1993-02-09 | Sharp Kabushiki Kaisha | Sheet feeding apparatus capable of feeding sheets of plural sizes |
JP2022116334A (en) * | 2017-05-31 | 2022-08-09 | キヤノン株式会社 | Mount device, imaging apparatus, adapter device, and accessory |
-
1987
- 1987-07-13 JP JP62174149A patent/JPS6417139A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5181710A (en) * | 1990-03-20 | 1993-01-26 | Sharp Kabushiki Kaisha | Top sheet feeding apparatus |
US5184812A (en) * | 1990-05-09 | 1993-02-09 | Sharp Kabushiki Kaisha | Sheet feeding apparatus capable of feeding sheets of plural sizes |
US5143364A (en) * | 1991-01-09 | 1992-09-01 | Am International, Inc. | Suction control system for printing or duplicating machines |
JP2022116334A (en) * | 2017-05-31 | 2022-08-09 | キヤノン株式会社 | Mount device, imaging apparatus, adapter device, and accessory |
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