GB2192739B - Selective input/output port protection - Google Patents

Selective input/output port protection

Info

Publication number
GB2192739B
GB2192739B GB8703091A GB8703091A GB2192739B GB 2192739 B GB2192739 B GB 2192739B GB 8703091 A GB8703091 A GB 8703091A GB 8703091 A GB8703091 A GB 8703091A GB 2192739 B GB2192739 B GB 2192739B
Authority
GB
United Kingdom
Prior art keywords
output port
port protection
selective input
selective
input
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
Application number
GB8703091A
Other versions
GB2192739A (en
GB8703091D0 (en
Inventor
Greg J Blanck
Rakesh K Agarwal
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.)
Intel Corp
Original Assignee
Intel 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 Intel Corp filed Critical Intel Corp
Publication of GB8703091D0 publication Critical patent/GB8703091D0/en
Publication of GB2192739A publication Critical patent/GB2192739A/en
Application granted granted Critical
Publication of GB2192739B publication Critical patent/GB2192739B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
    • G06F12/1483—Protection against unauthorised use of memory or access to memory by checking the subject access rights using an access-table, e.g. matrix or list
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0646—Configuration or reconfiguration
    • 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
    • G06F13/10—Program control for peripheral devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
GB8703091A 1986-07-18 1987-02-11 Selective input/output port protection Expired - Lifetime GB2192739B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88691886A 1986-07-18 1986-07-18

Publications (3)

Publication Number Publication Date
GB8703091D0 GB8703091D0 (en) 1987-03-18
GB2192739A GB2192739A (en) 1988-01-20
GB2192739B true GB2192739B (en) 1991-02-13

Family

ID=25390078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8703091A Expired - Lifetime GB2192739B (en) 1986-07-18 1987-02-11 Selective input/output port protection

Country Status (4)

Country Link
JP (1) JPS6329849A (en)
FR (1) FR2601793B1 (en)
GB (1) GB2192739B (en)
HK (1) HK26896A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4656347B2 (en) 2009-04-14 2011-03-23 日本電気株式会社 Computer system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668651A (en) * 1970-12-30 1972-06-06 Ibm Working device code method of i/o control
GB1497600A (en) * 1974-12-29 1978-01-12 Fujitsu Ltd Data processing apparatus
US4135240A (en) * 1973-07-09 1979-01-16 Bell Telephone Laboratories, Incorporated Protection of data file contents
GB2070302A (en) * 1980-02-19 1981-09-03 Omron Tateisi Electronics Co Data communication system
GB2123189A (en) * 1982-06-05 1984-01-25 British Aerospace Communication between computers
EP0166984A2 (en) * 1984-06-29 1986-01-08 International Business Machines Corporation A multiprocessor resource locking system and its method of operation
EP0172342A2 (en) * 1984-08-22 1986-02-26 Data General Corporation Bus control gate array

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595361A (en) * 1982-06-29 1984-01-12 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Operation of calculator
DE3373848D1 (en) * 1983-02-23 1987-10-29 Ibm Interactive work station with auxiliary microprocessor for storage protection
JPS60254335A (en) * 1984-05-31 1985-12-16 Fujitsu Ltd Multiplex processing system in software test

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668651A (en) * 1970-12-30 1972-06-06 Ibm Working device code method of i/o control
US4135240A (en) * 1973-07-09 1979-01-16 Bell Telephone Laboratories, Incorporated Protection of data file contents
GB1497600A (en) * 1974-12-29 1978-01-12 Fujitsu Ltd Data processing apparatus
GB2070302A (en) * 1980-02-19 1981-09-03 Omron Tateisi Electronics Co Data communication system
GB2123189A (en) * 1982-06-05 1984-01-25 British Aerospace Communication between computers
EP0166984A2 (en) * 1984-06-29 1986-01-08 International Business Machines Corporation A multiprocessor resource locking system and its method of operation
EP0172342A2 (en) * 1984-08-22 1986-02-26 Data General Corporation Bus control gate array

Also Published As

Publication number Publication date
GB2192739A (en) 1988-01-20
FR2601793A1 (en) 1988-01-22
FR2601793B1 (en) 1993-05-07
GB8703091D0 (en) 1987-03-18
HK26896A (en) 1996-02-23
JPS6329849A (en) 1988-02-08

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20070210