JPH0198033A - Detecting circuit for data error - Google Patents
Detecting circuit for data errorInfo
- Publication number
- JPH0198033A JPH0198033A JP62255674A JP25567487A JPH0198033A JP H0198033 A JPH0198033 A JP H0198033A JP 62255674 A JP62255674 A JP 62255674A JP 25567487 A JP25567487 A JP 25567487A JP H0198033 A JPH0198033 A JP H0198033A
- Authority
- JP
- Japan
- Prior art keywords
- data
- register
- parity check
- circuit
- error
- 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 define even an error of the control information as an ordinary data parity error by adding a control circuit to the selected data to decide the execution of the even or odd parity check.
CONSTITUTION: A multiplexer 5 selects a register 1 or 2 by the instruction of a control signal and stores it in a register 6. The data stored in the register 6 undergo the parity check through a parity check circuit 8 and are delivered to the next stage as long as the normal result is obtained from the parity check. Then an even bit 3 is added to the data of the register 1 and an odd parity bit 4 is added to the data of the register 2. The circuit 8 decides whether the even or odd parity check should be carried out according to a fact whether the data selected by an instruction given from a parity check circuit 9 belongs to the register 1 or 2. Thus it is possible to detect a malfunction through the function of the circuit 8 in case the data of the register 1 or 2 has an error and also in case the multiplexer 5 selects the wrong data.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62255674A JPH0198033A (en) | 1987-10-09 | 1987-10-09 | Detecting circuit for data error |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62255674A JPH0198033A (en) | 1987-10-09 | 1987-10-09 | Detecting circuit for data error |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0198033A true JPH0198033A (en) | 1989-04-17 |
Family
ID=17282042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62255674A Pending JPH0198033A (en) | 1987-10-09 | 1987-10-09 | Detecting circuit for data error |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0198033A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262358A (en) * | 1989-11-13 | 1993-11-16 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method for producing a silicate layer in an integrated circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61148539A (en) * | 1984-12-24 | 1986-07-07 | Nec Corp | Information processor |
-
1987
- 1987-10-09 JP JP62255674A patent/JPH0198033A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61148539A (en) * | 1984-12-24 | 1986-07-07 | Nec Corp | Information processor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5262358A (en) * | 1989-11-13 | 1993-11-16 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method for producing a silicate layer in an integrated circuit |
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