JPS6433649A - Address error detecting system - Google Patents
Address error detecting systemInfo
- Publication number
- JPS6433649A JPS6433649A JP62190848A JP19084887A JPS6433649A JP S6433649 A JPS6433649 A JP S6433649A JP 62190848 A JP62190848 A JP 62190848A JP 19084887 A JP19084887 A JP 19084887A JP S6433649 A JPS6433649 A JP S6433649A
- Authority
- JP
- Japan
- Prior art keywords
- line
- parity
- data
- lsi
- address
- 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
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE:To decrease the number of input/output signals of an LSI by using an address parity to give correction to the write and read data parities of a control memory inside the LSI so that no output of parity is required to an address line from the LSI. CONSTITUTION:A write data line is inverted by an inverting circuit 6 if an address parity line 104 is kept at '1' when data are written into a control memory 8. Then data are written into the memory 8 with an address line 103 defined as an address. In a data read mode a read data parity line 105 is inverted by an inverting circuit 7 as long as the line 104 is kept at '1'. Thus the data are inputted to a control memory reading register 4. The contents of the register 4 undergo the parity check via a parity checking circuit 5. Thus an error of the line 103 is checked by the circuit 5 so that no output of parity is required to the line 103 from an LSI 1. Therefore the number of input/output lines of the LSI 1 can be decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190848A JPS6433649A (en) | 1987-07-29 | 1987-07-29 | Address error detecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190848A JPS6433649A (en) | 1987-07-29 | 1987-07-29 | Address error detecting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6433649A true JPS6433649A (en) | 1989-02-03 |
Family
ID=16264782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62190848A Pending JPS6433649A (en) | 1987-07-29 | 1987-07-29 | Address error detecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6433649A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5038739A (en) * | 1989-09-07 | 1991-08-13 | Nissan Motor Company, Ltd. | Control arrangement for multi-cylinder two cycle engine |
-
1987
- 1987-07-29 JP JP62190848A patent/JPS6433649A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5038739A (en) * | 1989-09-07 | 1991-08-13 | Nissan Motor Company, Ltd. | Control arrangement for multi-cylinder two cycle engine |
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