JPS57147333A - Impulse generator - Google Patents

Impulse generator

Info

Publication number
JPS57147333A
JPS57147333A JP3170681A JP3170681A JPS57147333A JP S57147333 A JPS57147333 A JP S57147333A JP 3170681 A JP3170681 A JP 3170681A JP 3170681 A JP3170681 A JP 3170681A JP S57147333 A JPS57147333 A JP S57147333A
Authority
JP
Japan
Prior art keywords
counter
output
memory
address
frequency
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
JP3170681A
Other languages
Japanese (ja)
Inventor
Masaki Yagyu
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 JP3170681A priority Critical patent/JPS57147333A/en
Publication of JPS57147333A publication Critical patent/JPS57147333A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/62—Performing operations exclusively by counting total number of pulses ; Multiplication, division or derived operations using combined denominational and incremental processing by counters, i.e. without column shift

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To vary the frequency and waveform rate of an output pulse easily by setting data, stored in a read-only memory, in a programmable counter. CONSTITUTION:The output of a reference signal oscillator 201 equipped with a quartz oscillator X is applied to a programmable counter 202 to divide its frequency. For setting the frequency division ratio, etc., of the counter 202, prescribed data is written in a read-only memory 204, whose address is specified by a setting operation part 203 to set the contents of the specified address in the counter 202. The output of the oscillator 201 is counted by a counter 301, whose output is used as an address to set the contents of the memory 204 in the counter 202, so that the period of an output pulse is coninuously variable.
JP3170681A 1981-03-05 1981-03-05 Impulse generator Pending JPS57147333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3170681A JPS57147333A (en) 1981-03-05 1981-03-05 Impulse generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3170681A JPS57147333A (en) 1981-03-05 1981-03-05 Impulse generator

Publications (1)

Publication Number Publication Date
JPS57147333A true JPS57147333A (en) 1982-09-11

Family

ID=12338504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3170681A Pending JPS57147333A (en) 1981-03-05 1981-03-05 Impulse generator

Country Status (1)

Country Link
JP (1) JPS57147333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05129936A (en) * 1991-11-07 1993-05-25 Matsushita Electron Corp Programmable counter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05129936A (en) * 1991-11-07 1993-05-25 Matsushita Electron Corp Programmable counter

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