GB1541276A - Common input/output bus routing - Google Patents

Common input/output bus routing

Info

Publication number
GB1541276A
GB1541276A GB27351/76A GB2735176A GB1541276A GB 1541276 A GB1541276 A GB 1541276A GB 27351/76 A GB27351/76 A GB 27351/76A GB 2735176 A GB2735176 A GB 2735176A GB 1541276 A GB1541276 A GB 1541276A
Authority
GB
United Kingdom
Prior art keywords
output bus
common input
bus routing
routing
common
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
Application number
GB27351/76A
Other languages
English (en)
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.)
Bull HN Information Systems Italia SpA
Bull HN Information Systems Inc
Original Assignee
Honeywell Information Systems Italia SpA
Honeywell Information Systems Inc
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
Priority claimed from US05/591,902 external-priority patent/US4030075A/en
Priority claimed from US05/591,904 external-priority patent/US4000485A/en
Priority claimed from US05/591,964 external-priority patent/US3993981A/en
Application filed by Honeywell Information Systems Italia SpA, Honeywell Information Systems Inc filed Critical Honeywell Information Systems Italia SpA
Publication of GB1541276A publication Critical patent/GB1541276A/en
Expired legal-status Critical Current

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
    • G06F13/38—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
    • G06F13/4208—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus
    • G06F13/4213—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being a system bus, e.g. VME bus, Futurebus, Multibus with asynchronous protocol
    • 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
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus
    • G06F13/18—Handling requests for interconnection or transfer for access to memory bus based on priority control
    • 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
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • G06F13/368—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control
    • G06F13/378—Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a parallel poll method

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Bus Control (AREA)
  • Computer And Data Communications (AREA)
GB27351/76A 1975-06-30 1976-06-30 Common input/output bus routing Expired GB1541276A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/591,902 US4030075A (en) 1975-06-30 1975-06-30 Data processing system having distributed priority network
US05/591,904 US4000485A (en) 1975-06-30 1975-06-30 Data processing system providing locked operation of shared resources
US05/591,964 US3993981A (en) 1975-06-30 1975-06-30 Apparatus for processing data transfer requests in a data processing system

Publications (1)

Publication Number Publication Date
GB1541276A true GB1541276A (en) 1979-02-28

Family

ID=27416620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27351/76A Expired GB1541276A (en) 1975-06-30 1976-06-30 Common input/output bus routing

Country Status (8)

Country Link
CH (1) CH613061A5 (nl)
DE (1) DE2629401A1 (nl)
FR (1) FR2316660A1 (nl)
GB (1) GB1541276A (nl)
HK (1) HK37180A (nl)
NL (1) NL188920C (nl)
SE (1) SE420360B (nl)
SU (1) SU1274634A3 (nl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074353A (en) * 1976-05-24 1978-02-14 Honeywell Information Systems Inc. Trap mechanism for a data processing system
CA1120123A (en) * 1976-11-11 1982-03-16 Richard P. Kelly Automatic data steering and data formatting mechanism
ES474428A1 (es) * 1977-10-25 1979-04-16 Digital Equipment Corp Un sistema de tratamiento de datos.
GB2076192B (en) * 1978-12-26 1983-06-02 Honeywell Inf Systems Improvements in or relating to terminal systems for data processors
FR2474199B1 (fr) * 1980-01-21 1986-05-16 Bull Sa Dispositif pour superposer les phases successives du transfert des informations entre plusieurs unites d'un systeme de traitement de l'information
FR2474198B1 (fr) * 1980-01-21 1986-05-16 Bull Sa Dispositif pour decentraliser la gestion du bus de transfert de donnees commun a plusieurs unites d'un systeme de traitement de l'information
IT1149252B (it) * 1980-09-09 1986-12-03 Sits Soc It Telecom Siemens Modulo di ingresso-uscita per un elaboratore elettronico
US4724519A (en) * 1985-06-28 1988-02-09 Honeywell Information Systems Inc. Channel number priority assignment apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815099A (en) * 1970-04-01 1974-06-04 Digital Equipment Corp Data processing system
US3676860A (en) * 1970-12-28 1972-07-11 Ibm Interactive tie-breaking system
US3832692A (en) * 1972-06-27 1974-08-27 Honeywell Inf Systems Priority network for devices coupled by a multi-line bus
US3866181A (en) * 1972-12-26 1975-02-11 Honeywell Inf Systems Interrupt sequencing control apparatus
US3886524A (en) * 1973-10-18 1975-05-27 Texas Instruments Inc Asynchronous communication bus

Also Published As

Publication number Publication date
NL188920C (nl) 1992-11-02
DE2629401A1 (de) 1977-01-20
FR2316660A1 (fr) 1977-01-28
SU1274634A3 (ru) 1986-11-30
SE7607421L (sv) 1976-12-31
FR2316660B1 (nl) 1983-05-13
DE2629401C2 (nl) 1989-01-19
CH613061A5 (en) 1979-08-31
HK37180A (en) 1980-07-18
SE420360B (sv) 1981-09-28
NL7607167A (nl) 1977-01-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940630