JPS56152058A - Test system for chip of one-chip microcomputer - Google Patents

Test system for chip of one-chip microcomputer

Info

Publication number
JPS56152058A
JPS56152058A JP5597080A JP5597080A JPS56152058A JP S56152058 A JPS56152058 A JP S56152058A JP 5597080 A JP5597080 A JP 5597080A JP 5597080 A JP5597080 A JP 5597080A JP S56152058 A JPS56152058 A JP S56152058A
Authority
JP
Japan
Prior art keywords
signal
test
instruction
register
chip
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
JP5597080A
Other languages
Japanese (ja)
Inventor
Toshiaki Suzuki
Yoshiaki Daimatsu
Takashi Sakao
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5597080A priority Critical patent/JPS56152058A/en
Publication of JPS56152058A publication Critical patent/JPS56152058A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26—Functional testing
    • G06F11/273—Tester hardware, i.e. output processing circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE:To make chip test CT while lessening added load on a hardware, by inputting an instruction signal for the chip test CT via a data bus used for the execution of normal instructions. CONSTITUTION:During CT instruction execution, multiplexer 10 selects test instruction signal (i) in the 1st one-machine cycle MC and latches it in instruction register 3. At this time, test control circuit 12 outputs test switching signal (h) and controls the operation mode of input-output control circuit 11 to apply signal (f) from input-output terminal 8 to data bus 7 as signal (i). Further, signal (h) is inputted to instruction decoder 13 and in the 1st 1MC, arithmetic and transfer are intermitted to permit signal (i) to use bus 7; and register 3 latches an instruction code to be executed in the test. In the next 1MC, the arithmetic and transfer of the test instruction code are performed. Thus, signal (i) is transferred by using bus 7 and latched by register 3, so that added boad on the hardware dedicated to CT is lessened.
JP5597080A 1980-04-25 1980-04-25 Test system for chip of one-chip microcomputer Pending JPS56152058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5597080A JPS56152058A (en) 1980-04-25 1980-04-25 Test system for chip of one-chip microcomputer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5597080A JPS56152058A (en) 1980-04-25 1980-04-25 Test system for chip of one-chip microcomputer

Publications (1)

Publication Number Publication Date
JPS56152058A true JPS56152058A (en) 1981-11-25

Family

ID=13013925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5597080A Pending JPS56152058A (en) 1980-04-25 1980-04-25 Test system for chip of one-chip microcomputer

Country Status (1)

Country Link
JP (1) JPS56152058A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272841A (en) * 1985-05-28 1986-12-03 Sony Tektronix Corp Address detecting circuit
JPS62166545A (en) * 1986-01-20 1987-07-23 Nec Corp Semiconductor integrated logic circuit
CN113552473A (en) * 2021-09-22 2021-10-26 北京紫光青藤微系统有限公司 System for chip test and chip device to be tested

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498546A (en) * 1978-01-23 1979-08-03 Nec Corp Test system for data processor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498546A (en) * 1978-01-23 1979-08-03 Nec Corp Test system for data processor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61272841A (en) * 1985-05-28 1986-12-03 Sony Tektronix Corp Address detecting circuit
JPH0447340B2 (en) * 1985-05-28 1992-08-03 Sony Tektronix Corp
JPS62166545A (en) * 1986-01-20 1987-07-23 Nec Corp Semiconductor integrated logic circuit
CN113552473A (en) * 2021-09-22 2021-10-26 北京紫光青藤微系统有限公司 System for chip test and chip device to be tested
CN113552473B (en) * 2021-09-22 2021-12-28 北京紫光青藤微系统有限公司 System for chip test and chip device to be tested

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