JPS59175193U - timing circuit - Google Patents

timing circuit

Info

Publication number
JPS59175193U
JPS59175193U JP6883383U JP6883383U JPS59175193U JP S59175193 U JPS59175193 U JP S59175193U JP 6883383 U JP6883383 U JP 6883383U JP 6883383 U JP6883383 U JP 6883383U JP S59175193 U JPS59175193 U JP S59175193U
Authority
JP
Japan
Prior art keywords
clock
lsi
input clock
frequency
timer
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
JP6883383U
Other languages
Japanese (ja)
Other versions
JPS64634Y2 (en
Inventor
直彦 山口
Original Assignee
株式会社安川電機
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 株式会社安川電機 filed Critical 株式会社安川電機
Priority to JP6883383U priority Critical patent/JPS59175193U/en
Publication of JPS59175193U publication Critical patent/JPS59175193U/en
Application granted granted Critical
Publication of JPS64634Y2 publication Critical patent/JPS64634Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Unknown Time Intervals (AREA)
  • Electric Clocks (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

図面は、本考案の具体的実施例を示すものである。 1:基準周波数発振器、2,3:分周器、4:1秒未満
計時部、5:時計用LSI、5 、BUSY信号、7:
インターフェース部、8:マイクロプロセッサバス。 イ
The drawings illustrate specific embodiments of the invention. 1: Reference frequency oscillator, 2, 3: Frequency divider, 4: Less than 1 second timer, 5: Clock LSI, 5, BUSY signal, 7:
Interface section, 8: Microprocessor bus. stomach

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 基準周波数発振器の発するパルスを、分周比の異なる2
つの分周器で、ひとつを1秒単位で計時する万年時計用
LSIの作動周波数、他方をlHzより高い所定の周波
数になるよう分周し、前者を前記時計用LSIの入力ク
ロック、後者を1秒未満計時部の入力クロックとし、前
記時計用LSIが発するBUSY信号によって1秒未満
計時部の計時数をクリアすることを特徴とする計時回路
The pulses generated by the reference frequency oscillator are divided into two with different frequency division ratios.
One frequency divider is used to divide the operating frequency of a perpetual clock LSI that measures time in units of one second, and the other is divided to a predetermined frequency higher than 1Hz.The former is used as the input clock of the clock LSI, and the latter is 1. A timekeeping circuit, characterized in that the input clock of the less-than-one-second timer is an input clock, and the time count of the less-than-one-second timer is cleared by a BUSY signal generated by the clock LSI.
JP6883383U 1983-05-07 1983-05-07 timing circuit Granted JPS59175193U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6883383U JPS59175193U (en) 1983-05-07 1983-05-07 timing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6883383U JPS59175193U (en) 1983-05-07 1983-05-07 timing circuit

Publications (2)

Publication Number Publication Date
JPS59175193U true JPS59175193U (en) 1984-11-22
JPS64634Y2 JPS64634Y2 (en) 1989-01-09

Family

ID=30199002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6883383U Granted JPS59175193U (en) 1983-05-07 1983-05-07 timing circuit

Country Status (1)

Country Link
JP (1) JPS59175193U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5119002B2 (en) * 2008-02-29 2013-01-16 シチズン時計株式会社 Clock circuit and electronic clock

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5571978A (en) * 1978-11-24 1980-05-30 Hitachi Ltd Electronic multiple function watch
JPS55113783A (en) * 1972-11-06 1980-09-02 Merck & Co Inc Novel antibiotic

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55113783A (en) * 1972-11-06 1980-09-02 Merck & Co Inc Novel antibiotic
JPS5571978A (en) * 1978-11-24 1980-05-30 Hitachi Ltd Electronic multiple function watch

Also Published As

Publication number Publication date
JPS64634Y2 (en) 1989-01-09

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