JPS5752952A - Operational hysteresis storing equipment - Google Patents

Operational hysteresis storing equipment

Info

Publication number
JPS5752952A
JPS5752952A JP55126124A JP12612480A JPS5752952A JP S5752952 A JPS5752952 A JP S5752952A JP 55126124 A JP55126124 A JP 55126124A JP 12612480 A JP12612480 A JP 12612480A JP S5752952 A JPS5752952 A JP S5752952A
Authority
JP
Japan
Prior art keywords
register
counter
monitored
stopping
operational
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
JP55126124A
Other languages
Japanese (ja)
Inventor
Tatsuro Hashiguchi
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 JP55126124A priority Critical patent/JPS5752952A/en
Publication of JPS5752952A publication Critical patent/JPS5752952A/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
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment

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)
  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To easily analyze a hysteresis data, by stopping the step by step advancement of addresses of a storing circuit unless the operational condition of input data is changed, and knowing the stopping said advancing time. CONSTITUTION:A storing circuit 11 stores contents of a write data register 12 which stores the operational condition of a device to be monitored at every clock and a counter register 13 at a prescribed timing. A counter 14 advances by one step the content of the counter register 13 and inputs the content into the register 13. An address register 15 maintains the write address of the memory 11 and, at the same time, is advanced by one step by a counter 16 in timing. Moreover, a comparator 17 compares operational conditions of the write data register 12 with the device to be monitored which is the input into this register, and, when both coincide, outputs a coincidence signal 171 to a controlling circuit 18.
JP55126124A 1980-09-12 1980-09-12 Operational hysteresis storing equipment Pending JPS5752952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55126124A JPS5752952A (en) 1980-09-12 1980-09-12 Operational hysteresis storing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55126124A JPS5752952A (en) 1980-09-12 1980-09-12 Operational hysteresis storing equipment

Publications (1)

Publication Number Publication Date
JPS5752952A true JPS5752952A (en) 1982-03-29

Family

ID=14927241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55126124A Pending JPS5752952A (en) 1980-09-12 1980-09-12 Operational hysteresis storing equipment

Country Status (1)

Country Link
JP (1) JPS5752952A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5339033A (en) * 1976-09-22 1978-04-10 Hitachi Ltd Logic tracer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5339033A (en) * 1976-09-22 1978-04-10 Hitachi Ltd Logic tracer

Similar Documents

Publication Publication Date Title
JPS56140452A (en) Memory protection system
JPS5528644A (en) Memory unit
JPS5752952A (en) Operational hysteresis storing equipment
KR940006014A (en) Timer circuit with comparator
JPS522330A (en) Data processig unit
JPS5443630A (en) Memory access control system
JPS5336A (en) Data input unit
JPS5797168A (en) Buffer nullification control system
JPS56103743A (en) Microprogram controller
JPS5775356A (en) Instruction pre-fetch control system
JPS57196361A (en) Fault detecting device of microcomputer
JPS5764854A (en) Storage device of state history
JPS5461426A (en) Memory destruction preventing device for memory unit
JPS5381019A (en) Control system for variable length data access
JPS5668835A (en) Microprogram control unit
JPS54136181A (en) Test method for semiconductor memory unit of tri-state output
JPS5383729A (en) Board key output detector for electronic insturment
JPS6473437A (en) Memory write protection circuit
JPS57176600A (en) One chip microcomputer
JPS5778692A (en) Memory access system of electronic computer
JPS554659A (en) History recording system for data input device
JPS5494839A (en) Memory unit
JPS5720851A (en) Data processor
JPS57199055A (en) Information processing device
JPS55101076A (en) Measuring method of electronic watch