JPS55110341A - Logic circuit - Google Patents
Logic circuitInfo
- Publication number
- JPS55110341A JPS55110341A JP1744079A JP1744079A JPS55110341A JP S55110341 A JPS55110341 A JP S55110341A JP 1744079 A JP1744079 A JP 1744079A JP 1744079 A JP1744079 A JP 1744079A JP S55110341 A JPS55110341 A JP S55110341A
- Authority
- JP
- Japan
- Prior art keywords
- error correction
- shift function
- register
- circuit
- shift
- 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
- Logic Circuits (AREA)
Abstract
PURPOSE: To make it possible to set operation modes of circuits through the repetition of shift-in data during a test and diagnosis, by using a register with a shift function for setting operation modes of circuits.
CONSTITUTION: For a test and diagnosis at the time of normal use, error correction code generating circuit 13 is tested and diagnosed. Next, a shift function is used to set an operation mode of error correction of operation-mode setting register 2. The supply of error data with the shift function stopped once puts error correction circuit 14 into error correction operation. The shift function changes input to input selector circuit 11 over to that from error correction circuit 14 again. Then, the shift function is stopped again and a signal from output line 106 of error correction circuit 14 is set to latch register 12. Next, the content of latch register 12 is read out by the shift function, so that a normal unused point can be tested and diagnosed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1744079A JPS55110341A (en) | 1979-02-16 | 1979-02-16 | Logic circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1744079A JPS55110341A (en) | 1979-02-16 | 1979-02-16 | Logic circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55110341A true JPS55110341A (en) | 1980-08-25 |
JPS6213695B2 JPS6213695B2 (en) | 1987-03-28 |
Family
ID=11944076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1744079A Granted JPS55110341A (en) | 1979-02-16 | 1979-02-16 | Logic circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110341A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6342524A (en) * | 1986-08-08 | 1988-02-23 | Nec Corp | System for setting operation mode of logic circuit block |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5247292A (en) * | 1975-10-14 | 1977-04-14 | Brunswick Corp | Speed variable shiping jet drive assembled body |
-
1979
- 1979-02-16 JP JP1744079A patent/JPS55110341A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5247292A (en) * | 1975-10-14 | 1977-04-14 | Brunswick Corp | Speed variable shiping jet drive assembled body |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6342524A (en) * | 1986-08-08 | 1988-02-23 | Nec Corp | System for setting operation mode of logic circuit block |
Also Published As
Publication number | Publication date |
---|---|
JPS6213695B2 (en) | 1987-03-28 |
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