JPS55110341A - Logic circuit - Google Patents

Logic circuit

Info

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
Application number
JP1744079A
Other languages
Japanese (ja)
Other versions
JPS6213695B2 (en
Inventor
Yasuhisa Watanabe
Katsuaki Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1744079A priority Critical patent/JPS55110341A/en
Publication of JPS55110341A publication Critical patent/JPS55110341A/en
Publication of JPS6213695B2 publication Critical patent/JPS6213695B2/ja
Granted legal-status Critical Current

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
JP1744079A 1979-02-16 1979-02-16 Logic circuit Granted JPS55110341A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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