DE3940745C1 - - Google Patents

Info

Publication number
DE3940745C1
DE3940745C1 DE3940745A DE3940745A DE3940745C1 DE 3940745 C1 DE3940745 C1 DE 3940745C1 DE 3940745 A DE3940745 A DE 3940745A DE 3940745 A DE3940745 A DE 3940745A DE 3940745 C1 DE3940745 C1 DE 3940745C1
Authority
DE
Germany
Prior art keywords
oscillator
circuit
frequency
input
arithmetic 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.)
Expired - Lifetime
Application number
DE3940745A
Other languages
German (de)
English (en)
Inventor
Guenter 7131 Wiernsheim De Graether
Werner Dipl.-Ing. 7140 Ludwigsburg De Jundt
Guenther Dr. Dipl.-Phys. 7000 Stuttgart De Kaiser
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE3940745A priority Critical patent/DE3940745C1/de
Priority to JP2514114A priority patent/JPH05501626A/ja
Priority to PCT/DE1990/000810 priority patent/WO1991009361A1/de
Priority to DE59005777T priority patent/DE59005777D1/de
Priority to EP90915091A priority patent/EP0502854B1/de
Application granted granted Critical
Publication of DE3940745C1 publication Critical patent/DE3940745C1/de
Priority to US07/777,550 priority patent/US5196810A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/24—Resetting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
DE3940745A 1989-12-09 1989-12-09 Expired - Lifetime DE3940745C1 (https=)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE3940745A DE3940745C1 (https=) 1989-12-09 1989-12-09
JP2514114A JPH05501626A (ja) 1989-12-09 1990-10-25 計算回路へ周波を供給する回路装置
PCT/DE1990/000810 WO1991009361A1 (de) 1989-12-09 1990-10-25 Schaltungsanordnung zur frequenzversorgung einer rechenschaltung
DE59005777T DE59005777D1 (de) 1989-12-09 1990-10-25 Schaltungsanordnung zur frequenzversorgung einer rechenschaltung.
EP90915091A EP0502854B1 (de) 1989-12-09 1990-10-25 Schaltungsanordnung zur frequenzversorgung einer rechenschaltung
US07/777,550 US5196810A (en) 1989-12-09 1992-02-03 Plural oscillator circuit arrangement for rapidly resetting a computer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3940745A DE3940745C1 (https=) 1989-12-09 1989-12-09

Publications (1)

Publication Number Publication Date
DE3940745C1 true DE3940745C1 (https=) 1991-04-11

Family

ID=6395143

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3940745A Expired - Lifetime DE3940745C1 (https=) 1989-12-09 1989-12-09
DE59005777T Expired - Lifetime DE59005777D1 (de) 1989-12-09 1990-10-25 Schaltungsanordnung zur frequenzversorgung einer rechenschaltung.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59005777T Expired - Lifetime DE59005777D1 (de) 1989-12-09 1990-10-25 Schaltungsanordnung zur frequenzversorgung einer rechenschaltung.

Country Status (5)

Country Link
US (1) US5196810A (https=)
EP (1) EP0502854B1 (https=)
JP (1) JPH05501626A (https=)
DE (2) DE3940745C1 (https=)
WO (1) WO1991009361A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534785C1 (de) * 1995-09-19 1997-01-16 Siemens Ag Schaltungsanordnung zur Erzeugung eines Freigabesignals für eine taktsteuerbare Schaltung

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05259848A (ja) * 1992-03-11 1993-10-08 Nec Corp クロック発生装置
US5453719A (en) * 1993-12-17 1995-09-26 Nec Corporation Oscillator circuit generating oscillation signal responsive to one of resonant element and external clock signal
US5623234A (en) * 1996-03-04 1997-04-22 Motorola Clock system
US5844435A (en) * 1997-03-11 1998-12-01 Lucent Technologies Inc Low power, high accuracy clock circuit and method for integrated circuits
US6980037B1 (en) * 1998-09-16 2005-12-27 Cirrus Logic, Inc. Power on reset techniques for an integrated circuit chip
US6157265A (en) * 1998-10-30 2000-12-05 Fairchild Semiconductor Corporation Programmable multi-scheme clocking circuit
JP2001344039A (ja) * 2000-03-31 2001-12-14 Seiko Epson Corp 情報処理装置、情報処理装置の制御方法および情報処理装置の制御プログラム
US6657501B1 (en) * 2000-06-19 2003-12-02 Cypress Semiconductor Corp. Instantaneous start up oscillator
US6529447B1 (en) 2000-06-19 2003-03-04 Cypress Semiconductor Corp. Compensation of crystal start up for accurate time measurement
US7362659B2 (en) * 2002-07-11 2008-04-22 Action Manufacturing Company Low current microcontroller circuit
AU2003274640A1 (en) * 2002-10-16 2004-05-04 Rfwaves Ltd. Method and system for fast wake-up of oscillators
JP2004355362A (ja) * 2003-05-29 2004-12-16 Nec Electronics Corp マイクロコンピュータおよびその初期設定方法
JP4515751B2 (ja) * 2003-12-10 2010-08-04 富士通セミコンダクター株式会社 半導体装置
US7408420B2 (en) * 2005-09-27 2008-08-05 Intel Corporation Multi mode clock generator
US8035455B1 (en) 2005-12-21 2011-10-11 Cypress Semiconductor Corporation Oscillator amplitude control network
US7420432B2 (en) * 2006-07-11 2008-09-02 Mediatek Inc. Noise removal circuit
US7808327B2 (en) * 2006-08-07 2010-10-05 Texas Instruments Incorporated Method and apparatus to provide digitally controlled crystal oscillators
US8975972B2 (en) * 2012-07-05 2015-03-10 Infineon Technologies Ag Oscillator system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119117A1 (de) * 1981-05-14 1982-12-09 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum ruecksetzen von recheneinrichtungen
DE3515611A1 (de) * 1985-04-30 1986-10-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum einstellen vorgegebener startverhaeltnisse in einem mikrorechner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3871425D1 (de) * 1987-04-13 1992-07-02 Siemens Ag Integrierte schaltungsanordnung zur ueberwachung eines mitintegrierten oszillators.
US4868525A (en) * 1988-09-23 1989-09-19 Dallas Semiconductor Corporation Temperature-stabilized oscillator
US5126695A (en) * 1989-06-14 1992-06-30 Seiko Epson Corporation Semiconductor integrated circuit device operated with an applied voltage lower than required by its clock oscillator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119117A1 (de) * 1981-05-14 1982-12-09 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum ruecksetzen von recheneinrichtungen
DE3515611A1 (de) * 1985-04-30 1986-10-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zum einstellen vorgegebener startverhaeltnisse in einem mikrorechner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US IBM Technical Disclosure Bulletin, Vol. 30, No. 10, März 1988, S. 114,115 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19534785C1 (de) * 1995-09-19 1997-01-16 Siemens Ag Schaltungsanordnung zur Erzeugung eines Freigabesignals für eine taktsteuerbare Schaltung

Also Published As

Publication number Publication date
EP0502854A1 (de) 1992-09-16
JPH05501626A (ja) 1993-03-25
US5196810A (en) 1993-03-23
DE59005777D1 (de) 1994-06-23
EP0502854B1 (de) 1994-05-18
WO1991009361A1 (de) 1991-06-27

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Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8363 Opposition against the patent
8331 Complete revocation