GB1377557A - Data processing systems - Google Patents

Data processing systems

Info

Publication number
GB1377557A
GB1377557A GB1930672A GB1930672A GB1377557A GB 1377557 A GB1377557 A GB 1377557A GB 1930672 A GB1930672 A GB 1930672A GB 1930672 A GB1930672 A GB 1930672A GB 1377557 A GB1377557 A GB 1377557A
Authority
GB
United Kingdom
Prior art keywords
priority
signals
network
counter
request
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
GB1930672A
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.)
Siemens Corp
Original Assignee
Siemens Corp
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
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1377557A publication Critical patent/GB1377557A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/48—Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806—Task transfer initiation or dispatching
    • G06F9/4812—Task transfer initiation or dispatching by interrupt, e.g. masked
    • G06F9/4818—Priority circuits therefor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
    • G06F13/225—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling with priority control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
GB1930672A 1971-05-10 1972-04-26 Data processing systems Expired GB1377557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712123107 DE2123107A1 (de) 1971-05-10 1971-05-10 Steuereinheit zum Durchschalten von Anforderungssignalen an eine zentrale Verarbeitungseinrichtung

Publications (1)

Publication Number Publication Date
GB1377557A true GB1377557A (en) 1974-12-18

Family

ID=5807422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1930672A Expired GB1377557A (en) 1971-05-10 1972-04-26 Data processing systems

Country Status (7)

Country Link
BE (1) BE783269A (enrdf_load_stackoverflow)
DE (1) DE2123107A1 (enrdf_load_stackoverflow)
FR (1) FR2139288A5 (enrdf_load_stackoverflow)
GB (1) GB1377557A (enrdf_load_stackoverflow)
IT (1) IT959707B (enrdf_load_stackoverflow)
LU (1) LU65314A1 (enrdf_load_stackoverflow)
NL (1) NL7206122A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758832A (en) * 1985-08-23 1988-07-19 Siemens Aktiengesellschaft Method and apparatus for simultaneously transmitting plural independent commands
GB2341460A (en) * 1998-05-19 2000-03-15 Lsi Logic Corp Arbitration between requests for accessing a shared resource uses dynamic priority scheme

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638594C3 (de) * 1976-08-27 1987-07-30 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Multiplexsystem zum Verbinden mehrerer dezentraler Stationen untereinander

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758832A (en) * 1985-08-23 1988-07-19 Siemens Aktiengesellschaft Method and apparatus for simultaneously transmitting plural independent commands
GB2341460A (en) * 1998-05-19 2000-03-15 Lsi Logic Corp Arbitration between requests for accessing a shared resource uses dynamic priority scheme
US6321309B1 (en) 1998-05-19 2001-11-20 Lsi Logic Corporation Memory arbitration scheme with circular sequence register
GB2341460B (en) * 1998-05-19 2003-02-19 Lsi Logic Corp Method and apparatus for arbitrating between requests for access to a shared resource

Also Published As

Publication number Publication date
IT959707B (it) 1973-11-10
FR2139288A5 (enrdf_load_stackoverflow) 1973-01-05
LU65314A1 (enrdf_load_stackoverflow) 1973-01-22
DE2123107A1 (de) 1972-11-23
NL7206122A (enrdf_load_stackoverflow) 1972-11-14
BE783269A (fr) 1972-11-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees