IT8025697A0 - Circuito d'accesso a canali d'elaboratore per dispositivi multipli di ingresso-uscita. - Google Patents
Circuito d'accesso a canali d'elaboratore per dispositivi multipli di ingresso-uscita.Info
- Publication number
- IT8025697A0 IT8025697A0 IT8025697A IT2569780A IT8025697A0 IT 8025697 A0 IT8025697 A0 IT 8025697A0 IT 8025697 A IT8025697 A IT 8025697A IT 2569780 A IT2569780 A IT 2569780A IT 8025697 A0 IT8025697 A0 IT 8025697A0
- Authority
- IT
- Italy
- Prior art keywords
- output devices
- multiple input
- access circuit
- processor channels
- channels
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/091,422 US4314164A (en) | 1979-11-05 | 1979-11-05 | Computer channel access circuit for multiple input-output devices |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8025697A0 true IT8025697A0 (it) | 1980-10-31 |
IT1149821B IT1149821B (it) | 1986-12-10 |
Family
ID=22227701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT25697/80A IT1149821B (it) | 1979-11-05 | 1980-10-31 | Circuito d'accesso a canali d'elaboratore per dispositivi multipli di ingresso-uscita |
Country Status (4)
Country | Link |
---|---|
US (1) | US4314164A (it) |
BE (1) | BE885803A (it) |
CA (1) | CA1145003A (it) |
IT (1) | IT1149821B (it) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4423384A (en) * | 1981-12-21 | 1983-12-27 | Motorola, Inc. | Asynchronous multi-port arbiter |
JPS5966243A (ja) * | 1982-10-08 | 1984-04-14 | Hitachi Ltd | デ−タ通信方式 |
US4535428A (en) * | 1983-03-10 | 1985-08-13 | International Business Machines Corporation | Multi-port register implementations |
US4616347A (en) * | 1983-05-31 | 1986-10-07 | International Business Machines Corporation | Multi-port system |
US4558433A (en) * | 1983-05-31 | 1985-12-10 | International Business Machines Corporation | Multi-port register implementations |
US4577292A (en) * | 1983-05-31 | 1986-03-18 | International Business Machines Corporation | Support circuitry for multi-port systems |
FR2547934B1 (fr) * | 1983-06-21 | 1988-12-02 | Electricite De France | Installation de calcul a commutation automatique de peripheriques et peripherique propre a de telles commutations |
US4667307A (en) * | 1983-11-14 | 1987-05-19 | Digital Equipment Corporation | Circuit for selecting and locking in operation function circuitry |
US4812840A (en) * | 1987-06-29 | 1989-03-14 | Ncr Corporation | Multiple mode switching means |
JPH073940B2 (ja) * | 1987-11-19 | 1995-01-18 | 三菱電機株式会社 | アービタ回路 |
JPH01134557A (ja) * | 1987-11-19 | 1989-05-26 | Mitsubishi Electric Corp | アービタ回路 |
EP0329798B1 (en) * | 1988-01-28 | 1990-12-19 | Hewlett-Packard GmbH | Formatter circuit |
US5263171A (en) * | 1990-03-27 | 1993-11-16 | Cybex Corporation | Device for interfacing two keyboards to one computer and for automatically connecting the active keyboard to the computer |
EP0464237A1 (en) * | 1990-07-03 | 1992-01-08 | International Business Machines Corporation | Bus arbitration scheme |
JPH04250712A (ja) * | 1991-01-25 | 1992-09-07 | Toshiba Corp | 半導体集積回路 |
JPH0683618A (ja) * | 1992-08-31 | 1994-03-25 | Nec Corp | フラグ制御回路 |
US5357146A (en) * | 1992-12-31 | 1994-10-18 | At&T Bell Laboratories | Glitch-free clock multiplexer |
US5541582A (en) * | 1994-01-13 | 1996-07-30 | Datascape, Inc. | Apparatus for data communication switching |
US5831464A (en) * | 1996-04-29 | 1998-11-03 | International Business Machines Corporation | Simplified differential single-shot |
US7362134B2 (en) * | 2006-03-24 | 2008-04-22 | Freescale Semiconductor, Inc. | Circuit and method for latch bypass |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3107306A (en) * | 1959-07-01 | 1963-10-15 | Westinghouse Electric Corp | Anticoincident pulse responsive circuit comprising logic components |
US3982425A (en) * | 1974-01-14 | 1976-09-28 | Rockwell International Corporation | Ultrasonic inspection system |
GB1603647A (en) * | 1977-04-29 | 1981-11-25 | Bourner M | Pulse order recognition circuit |
US4249093A (en) * | 1978-09-06 | 1981-02-03 | Lockheed Electronics Co., Inc. | Multiple request arbitration circuit |
-
1979
- 1979-11-05 US US06/091,422 patent/US4314164A/en not_active Expired - Lifetime
-
1980
- 1980-10-21 BE BE2/58816A patent/BE885803A/fr not_active IP Right Cessation
- 1980-10-24 CA CA000363262A patent/CA1145003A/en not_active Expired
- 1980-10-31 IT IT25697/80A patent/IT1149821B/it active
Also Published As
Publication number | Publication date |
---|---|
US4314164A (en) | 1982-02-02 |
BE885803A (fr) | 1981-02-16 |
IT1149821B (it) | 1986-12-10 |
CA1145003A (en) | 1983-04-19 |
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