DE69427512T2 - Direktspeicherzugriffssteuerung - Google Patents
DirektspeicherzugriffssteuerungInfo
- Publication number
- DE69427512T2 DE69427512T2 DE69427512T DE69427512T DE69427512T2 DE 69427512 T2 DE69427512 T2 DE 69427512T2 DE 69427512 T DE69427512 T DE 69427512T DE 69427512 T DE69427512 T DE 69427512T DE 69427512 T2 DE69427512 T2 DE 69427512T2
- Authority
- DE
- Germany
- Prior art keywords
- memory access
- access controller
- direct memory
- direct
- controller
- 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
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
-
- 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
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4009—Coupling between buses with data restructuring
- G06F13/4018—Coupling between buses with data restructuring with data-width conversion
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Bus Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/145,376 US5561819A (en) | 1993-10-29 | 1993-10-29 | Computer system selecting byte lane for a peripheral device during I/O addressing technique of disabling non-participating peripherals by driving an address within a range on the local bus in a DMA controller |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69427512D1 DE69427512D1 (de) | 2001-07-26 |
DE69427512T2 true DE69427512T2 (de) | 2002-04-25 |
Family
ID=22512829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69427512T Expired - Lifetime DE69427512T2 (de) | 1993-10-29 | 1994-09-12 | Direktspeicherzugriffssteuerung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5561819A (de) |
EP (1) | EP0651333B1 (de) |
JP (1) | JPH07182277A (de) |
DE (1) | DE69427512T2 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5729762A (en) * | 1995-04-21 | 1998-03-17 | Intel Corporation | Input output controller having interface logic coupled to DMA controller and plurality of address lines for carrying control information to DMA agent |
US5754806A (en) * | 1995-11-03 | 1998-05-19 | Holtek Microelectronics, Inc. | Memory table look-up device and method |
US5828900A (en) * | 1996-01-03 | 1998-10-27 | Intel Corporation | International multiple-byte character generator support in application sharing which distinguishes guest keyboard input from host key board and bypassing execution of the generator module when guest keyboard input is determined |
US5812798A (en) * | 1996-01-26 | 1998-09-22 | Motorola, Inc. | Data processing system for accessing an external device and method therefore |
US5809333A (en) * | 1996-04-08 | 1998-09-15 | Vlsi Technology, Inc. | System for implementing peripheral device bus mastering in desktop PC via hardware state machine for programming DMA controller, generating command signals and receiving completion status |
US6122669A (en) * | 1997-02-14 | 2000-09-19 | Advanced Micro Devices, Inc. | Method and apparatus for auto-incrementing through table and updating single register in memory |
US6055583A (en) * | 1997-03-27 | 2000-04-25 | Mitsubishi Semiconductor America, Inc. | DMA controller with semaphore communication protocol |
JPH10334037A (ja) * | 1997-05-30 | 1998-12-18 | Sanyo Electric Co Ltd | 通信dma装置 |
US6157970A (en) * | 1997-09-24 | 2000-12-05 | Intel Corporation | Direct memory access system using time-multiplexing for transferring address, data, and control and a separate control line for serially transmitting encoded DMA channel number |
US6119189A (en) * | 1997-09-24 | 2000-09-12 | Intel Corporation | Bus master transactions on a low pin count bus |
US6047336A (en) * | 1998-03-16 | 2000-04-04 | International Business Machines Corporation | Speculative direct memory access transfer between slave devices and memory |
DE10047574C2 (de) * | 2000-09-22 | 2003-07-17 | Systemonic Ag | Prozessorbusanordnung |
US20070147115A1 (en) * | 2005-12-28 | 2007-06-28 | Fong-Long Lin | Unified memory and controller |
US7519754B2 (en) * | 2005-12-28 | 2009-04-14 | Silicon Storage Technology, Inc. | Hard disk drive cache memory and playback device |
US10360164B1 (en) * | 2018-01-19 | 2019-07-23 | Microchip Technology Incorporated | Direct memory access adapter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4271466A (en) * | 1975-02-20 | 1981-06-02 | Panafacom Limited | Direct memory access control system with byte/word control of data bus |
US4514808A (en) * | 1978-04-28 | 1985-04-30 | Tokyo Shibaura Denki Kabushiki Kaisha | Data transfer system for a data processing system provided with direct memory access units |
JPS5789128A (en) * | 1980-11-25 | 1982-06-03 | Hitachi Ltd | Controlling system for information interchange |
US4815034A (en) * | 1981-03-18 | 1989-03-21 | Mackey Timothy I | Dynamic memory address system for I/O devices |
JPS6191752A (ja) * | 1984-10-11 | 1986-05-09 | Nec Corp | マイクロコンピユ−タ |
US4683534A (en) * | 1985-06-17 | 1987-07-28 | Motorola, Inc. | Method and apparatus for interfacing buses of different sizes |
US5187783A (en) * | 1989-03-15 | 1993-02-16 | Micral, Inc. | Controller for direct memory access |
US5297242A (en) * | 1989-12-15 | 1994-03-22 | Nec Corporation | DMA controller performing data transfer by 2-bus cycle transfer manner |
JPH04363745A (ja) * | 1991-05-17 | 1992-12-16 | Toshiba Corp | Dmaコントローラ |
-
1993
- 1993-10-29 US US08/145,376 patent/US5561819A/en not_active Expired - Lifetime
-
1994
- 1994-09-12 EP EP94306662A patent/EP0651333B1/de not_active Expired - Lifetime
- 1994-09-12 DE DE69427512T patent/DE69427512T2/de not_active Expired - Lifetime
- 1994-10-27 JP JP6263968A patent/JPH07182277A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US5561819A (en) | 1996-10-01 |
EP0651333B1 (de) | 2001-06-20 |
JPH07182277A (ja) | 1995-07-21 |
EP0651333A1 (de) | 1995-05-03 |
DE69427512D1 (de) | 2001-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GLOBALFOUNDRIES INC. MAPLES CORPORATE SERVICES, KY |