CN100565704C - 产生可变时脉的装置与方法 - Google Patents
产生可变时脉的装置与方法 Download PDFInfo
- Publication number
- CN100565704C CN100565704C CNB2005100712577A CN200510071257A CN100565704C CN 100565704 C CN100565704 C CN 100565704C CN B2005100712577 A CNB2005100712577 A CN B2005100712577A CN 200510071257 A CN200510071257 A CN 200510071257A CN 100565704 C CN100565704 C CN 100565704C
- Authority
- CN
- China
- Prior art keywords
- clock pulse
- control signal
- variable clock
- variable
- order
- 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 - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4234—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a memory bus
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Dram (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/709,299 | 2004-04-27 | ||
US10/709,299 US20050249025A1 (en) | 2004-04-27 | 2004-04-27 | Method and System For A Variable Frequency SDRAM Controller |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1697080A CN1697080A (zh) | 2005-11-16 |
CN100565704C true CN100565704C (zh) | 2009-12-02 |
Family
ID=35239295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100712577A Expired - Fee Related CN100565704C (zh) | 2004-04-27 | 2005-04-27 | 产生可变时脉的装置与方法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US20050249025A1 (zh) |
CN (1) | CN100565704C (zh) |
TW (1) | TWI280588B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8407411B2 (en) * | 2010-06-28 | 2013-03-26 | Wuxi Vimicro Corporation | Operation frequency adjusting system and method |
CN112309445B (zh) * | 2019-08-01 | 2023-10-13 | 群联电子股份有限公司 | 存储器接口电路、存储器存储装置及信号产生方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0048896B1 (en) * | 1980-09-25 | 1985-12-27 | Kabushiki Kaisha Toshiba | Clock synchronization signal generating circuit |
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 |
US4623846A (en) * | 1985-02-14 | 1986-11-18 | Motorola, Inc. | Constant duty cycle, frequency programmable clock generator |
JPH0387909A (ja) * | 1989-05-10 | 1991-04-12 | Seiko Epson Corp | 情報処理装置およびマイクロプロセッサ |
US5528307A (en) * | 1991-07-18 | 1996-06-18 | Canon Kabushiki Kaisha | Clock generator |
JP3277603B2 (ja) * | 1993-05-19 | 2002-04-22 | 富士通株式会社 | 半導体記憶装置 |
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 |
US6167529A (en) * | 1997-12-30 | 2000-12-26 | Intel Corporation | Instruction dependent clock scheme |
JP3935274B2 (ja) * | 1998-09-18 | 2007-06-20 | 富士通株式会社 | クロック切替回路 |
US6507247B2 (en) * | 2001-02-27 | 2003-01-14 | Corrent Corporation | Circuit and method for generating a variable frequency clock signal |
JP2002328744A (ja) * | 2001-04-27 | 2002-11-15 | Fujitsu Ltd | 半導体集積回路装置 |
-
2004
- 2004-04-27 US US10/709,299 patent/US20050249025A1/en not_active Abandoned
-
2005
- 2005-04-27 TW TW094113419A patent/TWI280588B/zh not_active IP Right Cessation
- 2005-04-27 CN CNB2005100712577A patent/CN100565704C/zh not_active Expired - Fee Related
- 2005-09-29 US US11/162,972 patent/US7136323B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
TWI280588B (en) | 2007-05-01 |
US20050249025A1 (en) | 2005-11-10 |
TW200535866A (en) | 2005-11-01 |
US20060050602A1 (en) | 2006-03-09 |
CN1697080A (zh) | 2005-11-16 |
US7136323B2 (en) | 2006-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102411982B (zh) | 内存控制器及命令控制方法 | |
CN1941196B (zh) | 半导体存储装置 | |
CN1945737B (zh) | 具有等待时间计数器的半导体器件 | |
KR100909630B1 (ko) | 어드레스 카운터 회로 | |
CN104167219A (zh) | 半导体装置 | |
CN101741352A (zh) | 频率随温度变化的振荡器 | |
CN100369156C (zh) | 半导体存储器及其控制方法 | |
US7793134B2 (en) | Information processing apparatus working at variable operating frequency | |
CN110364202A (zh) | 存储器装置 | |
CN101894584B (zh) | 一种动态随机存储器读写模式信号时序参数的实现方法 | |
CN100565704C (zh) | 产生可变时脉的装置与方法 | |
CN1224952A (zh) | 与时钟信号同步工作的半导体电路装置 | |
US7965572B2 (en) | Semiconductor device and information processing system | |
JPH10162576A (ja) | 半導体メモリ装置のカラム選択ラインイネーブル回路 | |
US7330394B2 (en) | Information storage device, information storage method, and information storage program | |
CN101609439A (zh) | 具有分时总线的电子系统与共用电子系统的总线的方法 | |
CN1937075A (zh) | 数据传送操作完成检测电路和包含其的半导体存储器件 | |
CN101441556A (zh) | 一种dram控制器及其实现方法 | |
KR100557975B1 (ko) | 메모리의 자동 리프레쉬 회로_ | |
CN100470672C (zh) | 用于减少数据线长度的半导体存储器件 | |
CN101361270A (zh) | 半导体输入输出控制电路 | |
Wang et al. | Design and implementation of DDR SDRAM controller based on FPGA in satellite navigation system | |
KR19980040799A (ko) | 반도체 메모리 장치의 자동 프리차아지 신호 발생회로 | |
CN102087874B (zh) | 通用存储器输入输出产生装置及方法 | |
KR100349357B1 (ko) | 데이타 마스킹 방법 및 회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: YUTIAN STOCK CO., LTD. Free format text: FORMER OWNER: WEISHENG ELECTRONICS CO., LTD. Effective date: 20080125 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20080125 Address after: Delaware Applicant after: VIA Tech Inc. Address before: The new city of Taiwan province Taipei County Road No. 533 8 floor Applicant before: Weisheng Electronic Co., Ltd. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20200427 |
|
CF01 | Termination of patent right due to non-payment of annual fee |