JPS5629755A - Testing device for logic circuit - Google Patents

Testing device for logic circuit

Info

Publication number
JPS5629755A
JPS5629755A JP10478779A JP10478779A JPS5629755A JP S5629755 A JPS5629755 A JP S5629755A JP 10478779 A JP10478779 A JP 10478779A JP 10478779 A JP10478779 A JP 10478779A JP S5629755 A JPS5629755 A JP S5629755A
Authority
JP
Japan
Prior art keywords
data
supplied
input mask
input
circuit
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
Application number
JP10478779A
Other languages
Japanese (ja)
Inventor
Morimasa Sato
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
Original Assignee
NEC 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 Electric Co Ltd filed Critical NEC Corp
Priority to JP10478779A priority Critical patent/JPS5629755A/en
Publication of JPS5629755A publication Critical patent/JPS5629755A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tests Of Electronic Circuits (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To reduce the time for production and transfer of the data and then reduce the memory capacity to store the data, by abbreviating the data supplied from the CPU only to the effective data by use of the input mask circuit and the effective data control circuit.
CONSTITUTION: In addition to the clock generating circuit 3, the input mask circuit 5 is provided to deliver the input mask signal in response to the input mask data supplied from outside. Furthermore, the effective data control circuit 7 is added to deliver the scan input data supplied from outside when the input mask signal is supplied ad then delivers the dummy input data when no input mask signal is supplied each. Thus the data supplied from the CPU can be abbreviated only to the effective data. As a result, the time can be reduced for both production and transfer of the data, at the same time reducing the memory capacity to store the data.
COPYRIGHT: (C)1981,JPO&Japio
JP10478779A 1979-08-16 1979-08-16 Testing device for logic circuit Pending JPS5629755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10478779A JPS5629755A (en) 1979-08-16 1979-08-16 Testing device for logic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10478779A JPS5629755A (en) 1979-08-16 1979-08-16 Testing device for logic circuit

Publications (1)

Publication Number Publication Date
JPS5629755A true JPS5629755A (en) 1981-03-25

Family

ID=14390170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10478779A Pending JPS5629755A (en) 1979-08-16 1979-08-16 Testing device for logic circuit

Country Status (1)

Country Link
JP (1) JPS5629755A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205265A (en) * 1982-05-26 1983-11-30 Fujitsu Ltd Scan loop check system
JPS5921504A (en) * 1982-07-10 1984-02-03 デグツサ・アクチエンゲゼルシヤフト Inorganic pigment and manufacture

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205265A (en) * 1982-05-26 1983-11-30 Fujitsu Ltd Scan loop check system
JPH0370811B2 (en) * 1982-05-26 1991-11-11 Fujitsu Ltd
JPS5921504A (en) * 1982-07-10 1984-02-03 デグツサ・アクチエンゲゼルシヤフト Inorganic pigment and manufacture
JPH0536369B2 (en) * 1982-07-10 1993-05-28 Degussa

Similar Documents

Publication Publication Date Title
JPS545637A (en) Communication control unit
JPS55143635A (en) Input-output controller
JPS53112040A (en) Shift register circuit
JPS51118341A (en) Shift register type memory
JPS53131731A (en) Interruption circuit for computer
JPS5629755A (en) Testing device for logic circuit
JPS5282277A (en) Memory system
JPS5371537A (en) Information processor
JPS5663628A (en) Data processing device
JPS5424553A (en) Control system for data transfer
JPS5438732A (en) Input/output order accepting system
JPS52102661A (en) Phase control circuit and application for osillation circuit
JPS52142A (en) Buffer circuit
JPS5384437A (en) Control system for test pattern generation
JPS5394836A (en) Data process system
JPS5478638A (en) Input/output control circuit
JPS5379329A (en) Test method of memory circuit
JPS5674761A (en) Information processor
JPS52120629A (en) Brown tube display control unit
JPS5354325A (en) Combustion control device
JPS54122944A (en) Logic circuit
JPS5355920A (en) Answer signal generator
JPS54125930A (en) Electronic computer
JPS52107746A (en) Ic test equipment
JPS5330243A (en) Arithmetic processor