DE3850808T2 - Erzeugung von Taktimpulsen. - Google Patents
Erzeugung von Taktimpulsen.Info
- Publication number
- DE3850808T2 DE3850808T2 DE3850808T DE3850808T DE3850808T2 DE 3850808 T2 DE3850808 T2 DE 3850808T2 DE 3850808 T DE3850808 T DE 3850808T DE 3850808 T DE3850808 T DE 3850808T DE 3850808 T2 DE3850808 T2 DE 3850808T2
- Authority
- DE
- Germany
- Prior art keywords
- generation
- clock pulses
- pulses
- clock
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
- H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
- H03K5/1506—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages
- H03K5/15066—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages using bistable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J13/00—Bullet catchers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62117508A JP2643146B2 (ja) | 1987-05-14 | 1987-05-14 | マイクロコンピュータのクロック生成回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3850808D1 DE3850808D1 (de) | 1994-09-01 |
| DE3850808T2 true DE3850808T2 (de) | 1995-01-19 |
Family
ID=14713494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3850808T Expired - Lifetime DE3850808T2 (de) | 1987-05-14 | 1988-05-13 | Erzeugung von Taktimpulsen. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5167031A (de) |
| EP (1) | EP0291335B1 (de) |
| JP (1) | JP2643146B2 (de) |
| KR (1) | KR960003061B1 (de) |
| CA (1) | CA1288828C (de) |
| DE (1) | DE3850808T2 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5636367A (en) * | 1991-02-27 | 1997-06-03 | Vlsi Technology, Inc. | N+0.5 wait state programmable DRAM controller |
| JP2745869B2 (ja) * | 1991-07-11 | 1998-04-28 | 日本電気株式会社 | 可変クロック分周回路 |
| JPH05108195A (ja) * | 1991-10-11 | 1993-04-30 | Toshiba Corp | ポータブルコンピユータ |
| US5254888A (en) * | 1992-03-27 | 1993-10-19 | Picopower Technology Inc. | Switchable clock circuit for microprocessors to thereby save power |
| US5734877A (en) * | 1992-09-09 | 1998-03-31 | Silicon Graphics, Inc. | Processor chip having on-chip circuitry for generating a programmable external clock signal and for controlling data patterns |
| US5752011A (en) | 1994-06-20 | 1998-05-12 | Thomas; C. Douglas | Method and system for controlling a processor's clock frequency in accordance with the processor's temperature |
| US5513152A (en) * | 1994-06-22 | 1996-04-30 | At&T Global Information Solutions Company | Circuit and method for determining the operating performance of an integrated circuit |
| US5586308A (en) * | 1994-10-19 | 1996-12-17 | Advanced Micro Devices, Inc. | Clock control unit responsive to a power management state for clocking multiple clocked circuits connected thereto |
| US6272465B1 (en) | 1994-11-02 | 2001-08-07 | Legerity, Inc. | Monolithic PC audio circuit |
| US5794021A (en) * | 1994-11-02 | 1998-08-11 | Advanced Micro Devices, Inc. | Variable frequency clock generation circuit using aperiodic patterns |
| US5524035A (en) * | 1995-08-10 | 1996-06-04 | International Business Machines Corporation | Symmetric clock system for a data processing system including dynamically switchable frequency divider |
| US5754867A (en) * | 1996-03-20 | 1998-05-19 | Vlsi Technology, Inc. | Method for optimizing performance versus power consumption using external/internal clock frequency ratios |
| JP3493096B2 (ja) * | 1996-06-07 | 2004-02-03 | 株式会社東芝 | 半導体集積回路、ｉｃカード、及びｉｃカードシステム |
| US7752480B2 (en) * | 2006-08-18 | 2010-07-06 | International Business Machines Corporation | System and method for switching digital circuit clock net driver without losing clock pulses |
| US8086977B2 (en) * | 2006-08-18 | 2011-12-27 | International Business Machines Corporation | Design Structure for switching digital circuit clock net driver without losing clock pulses |
| JP5199392B2 (ja) * | 2008-12-08 | 2013-05-15 | パナソニック株式会社 | システムクロック監視装置およびモータ制御システム |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3941989A (en) * | 1974-12-13 | 1976-03-02 | Mos Technology, Inc. | Reducing power consumption in calculators |
| US4059842A (en) * | 1975-10-31 | 1977-11-22 | Westinghouse Electric Corporation | Method and apparatus for synchronizing a digital divider chain with a low frequency pulse train |
| US4229699A (en) * | 1978-05-22 | 1980-10-21 | Data General Corporation | Multiple clock selection system |
| US4463440A (en) * | 1980-04-15 | 1984-07-31 | Sharp Kabushiki Kaisha | System clock generator in integrated circuit |
| JPS5775335A (en) * | 1980-10-27 | 1982-05-11 | Hitachi Ltd | Data processor |
| US4365203A (en) * | 1981-02-05 | 1982-12-21 | General Electric Company | Multi-frequency clock generator with error-free frequency switching |
| US4423383A (en) * | 1982-03-05 | 1983-12-27 | Ampex Corporation | Programmable multiple frequency ratio synchronous clock signal generator circuit and method |
| JPS6010318A (ja) * | 1983-06-29 | 1985-01-19 | Sanyo Electric Co Ltd | マイクロコンピユ−タ |
| JPS6019222A (ja) * | 1983-07-13 | 1985-01-31 | Nec Corp | クロツク発生回路 |
| US4584698A (en) * | 1983-11-02 | 1986-04-22 | Motorola, Inc. | Sharable prescaled timer and method for a data processor |
| US4893271A (en) * | 1983-11-07 | 1990-01-09 | Motorola, Inc. | Synthesized clock microcomputer with power saving |
| US4819164A (en) * | 1983-12-12 | 1989-04-04 | Texas Instruments Incorporated | Variable frequency microprocessor clock generator |
| JPS60198618A (ja) * | 1984-03-21 | 1985-10-08 | Oki Electric Ind Co Ltd | ダイナミツク論理回路 |
| JPS60263523A (ja) * | 1984-06-08 | 1985-12-27 | Mitsubishi Electric Corp | マイクロプロセツサ |
| US4748417A (en) * | 1985-02-05 | 1988-05-31 | Siemens Aktiengesellschaft | Method and circuit arrangement for switching a clock-controlled device having a plurality of operating statuses |
| US4821229A (en) * | 1985-12-12 | 1989-04-11 | Zenith Electronics Corporation | Dual operating speed switchover arrangement for CPU |
| US5086387A (en) * | 1986-01-17 | 1992-02-04 | International Business Machines Corporation | Multi-frequency clock generation with low state coincidence upon latching |
| JPS62166419A (ja) * | 1986-01-17 | 1987-07-22 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 多周波クロック発生装置 |
| GB8615399D0 (en) * | 1986-06-24 | 1986-07-30 | Int Computers Ltd | Switching circuit |
| JPS63131616A (ja) * | 1986-11-20 | 1988-06-03 | Mitsubishi Electric Corp | プログラマブルクロツク分周器 |
-
1987
- 1987-05-14 JP JP62117508A patent/JP2643146B2/ja not_active Expired - Lifetime
-
1988
- 1988-04-29 KR KR1019880004894A patent/KR960003061B1/ko not_active IP Right Cessation
- 1988-05-10 US US07/192,363 patent/US5167031A/en not_active Expired - Lifetime
- 1988-05-12 CA CA000566629A patent/CA1288828C/en not_active Expired - Lifetime
- 1988-05-13 DE DE3850808T patent/DE3850808T2/de not_active Expired - Lifetime
- 1988-05-13 EP EP88304367A patent/EP0291335B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3850808D1 (de) | 1994-09-01 |
| US5167031A (en) | 1992-11-24 |
| EP0291335A3 (en) | 1989-10-18 |
| KR960003061B1 (ko) | 1996-03-04 |
| JPS63282511A (ja) | 1988-11-18 |
| EP0291335A2 (de) | 1988-11-17 |
| KR880014446A (ko) | 1988-12-23 |
| EP0291335B1 (de) | 1994-07-27 |
| JP2643146B2 (ja) | 1997-08-20 |
| CA1288828C (en) | 1991-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |