JPS51118928A - Memory expandor - Google Patents

Memory expandor

Info

Publication number
JPS51118928A
JPS51118928A JP51032361A JP3236176A JPS51118928A JP S51118928 A JPS51118928 A JP S51118928A JP 51032361 A JP51032361 A JP 51032361A JP 3236176 A JP3236176 A JP 3236176A JP S51118928 A JPS51118928 A JP S51118928A
Authority
JP
Japan
Prior art keywords
expandor
memory
memory expandor
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.)
Granted
Application number
JP51032361A
Other languages
English (en)
Other versions
JPS6122331B2 (ja
Inventor
Esu Eruwaado Jiyon
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard Ltd
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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS51118928A publication Critical patent/JPS51118928A/ja
Publication of JPS6122331B2 publication Critical patent/JPS6122331B2/ja
Granted 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
    • G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • G06F12/145—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being virtual, e.g. for virtual blocks or segments before a translation mechanism
JP51032361A 1975-03-24 1976-03-24 Memory expandor Granted JPS51118928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/561,470 US3970999A (en) 1975-03-24 1975-03-24 Memory expansion apparatus

Publications (2)

Publication Number Publication Date
JPS51118928A true JPS51118928A (en) 1976-10-19
JPS6122331B2 JPS6122331B2 (ja) 1986-05-31

Family

ID=24242114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51032361A Granted JPS51118928A (en) 1975-03-24 1976-03-24 Memory expandor

Country Status (5)

Country Link
US (1) US3970999A (ja)
JP (1) JPS51118928A (ja)
BR (1) BR7601815A (ja)
DE (1) DE2611598A1 (ja)
FR (2) FR2304962A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160091U (ja) * 1985-03-22 1986-10-03
JPS62134151U (ja) * 1986-05-23 1987-08-24

Families Citing this family (54)

* Cited by examiner, † Cited by third party
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US4042911A (en) * 1976-04-30 1977-08-16 International Business Machines Corporation Outer and asynchronous storage extension system
US4092715A (en) * 1976-09-22 1978-05-30 Honeywell Information Systems Inc. Input-output unit having extended addressing capability
US4086658A (en) * 1976-10-04 1978-04-25 International Business Machines Corporation Input/output and diagnostic arrangements for programmable machine controllers having multiprogramming capabilities
US4093986A (en) * 1976-12-27 1978-06-06 International Business Machines Corporation Address translation with storage protection
FR2400729A1 (fr) * 1977-08-17 1979-03-16 Cii Honeywell Bull Dispositif pour la transformation d'adresses virtuelles en adresses physiques dans un systeme de traitement de donnees
US4320455A (en) * 1978-01-09 1982-03-16 Honeywell Information Systems Inc. Queue structure for a data processing system
US4500952A (en) * 1980-05-23 1985-02-19 International Business Machines Corporation Mechanism for control of address translation by a program using a plurality of translation tables
US4403283A (en) * 1980-07-28 1983-09-06 Ncr Corporation Extended memory system and method
US4374417A (en) * 1981-02-05 1983-02-15 International Business Machines Corp. Method for using page addressing mechanism
US4481570A (en) * 1981-08-07 1984-11-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Automatic multi-banking of memory for microprocessors
US4513371A (en) * 1982-07-29 1985-04-23 Ncr Corporation Computer interface apparatus using split-cycle lookahead addressing for faster access to paged memory
US4488228A (en) * 1982-12-03 1984-12-11 Motorola, Inc. Virtual memory data processor
JPH0652511B2 (ja) * 1984-12-14 1994-07-06 株式会社日立製作所 情報処理装置のアドレス変換方式
US4727485A (en) * 1986-01-02 1988-02-23 Motorola, Inc. Paged memory management unit which locks translators in translation cache if lock specified in translation table
US4761736A (en) * 1986-01-02 1988-08-02 Commodore Business Machines, Inc. Memory management unit for addressing an expanded memory in groups of non-contiguous blocks
US4907190A (en) * 1986-08-08 1990-03-06 Toshiba Kikai Kabushiki Kaisha Computer control system and method for effecting sequence controls and servo-controls
US5109492A (en) * 1986-09-19 1992-04-28 Hitachi, Ltd. Microprocessor which terminates bus cycle when access address falls within a predetermined processor system address space
US4831522A (en) * 1987-02-17 1989-05-16 Microlytics, Inc. Circuit and method for page addressing read only memory
US4849875A (en) * 1987-03-03 1989-07-18 Tandon Corporation Computer address modification system with optional DMA paging
DE3890141T1 (de) * 1987-03-03 1989-04-13 Tandon Corp Computersystem mit computeradressenmodifiziersystem
US4891752A (en) * 1987-03-03 1990-01-02 Tandon Corporation Multimode expanded memory space addressing system using independently generated DMA channel selection and DMA page address signals
US5101339A (en) * 1987-08-10 1992-03-31 Tandon Corporation Computer address modification system using writable mapping and page stores
US5327542A (en) * 1987-09-30 1994-07-05 Mitsubishi Denki Kabushiki Kaisha Data processor implementing a two's complement addressing technique
US5307474A (en) * 1987-09-30 1994-04-26 Mitsubishi Denki Kabushiki Kaisha Apparatus and method for processing literal operand computer instructions
US4903194A (en) * 1987-11-12 1990-02-20 International Business Machines Corporation Storage addressing error detection circuitry
US4965720A (en) * 1988-07-18 1990-10-23 International Business Machines Corporation Directed address generation for virtual-address data processors
US5123098A (en) * 1989-02-28 1992-06-16 Hewlett-Packard Company Method for executing programs within expanded memory of a computer system using MS or PC DOS
US5247655A (en) * 1989-11-07 1993-09-21 Chips And Technologies, Inc. Sleep mode refresh apparatus
US5161218A (en) * 1989-11-13 1992-11-03 Chips And Technologies, Inc. Memory controller for using reserved DRAM addresses for EMS
US5317706A (en) * 1989-11-15 1994-05-31 Ncr Corporation Memory expansion method and apparatus in a virtual memory system
DE69031705T2 (de) * 1989-11-29 1998-04-02 Toshiba Kawasaki Kk Zum Anschluss einer Erweiterungseinheit geeignetes Rechnersystem
EP0443876A3 (en) * 1990-02-23 1992-01-02 Kabushiki Kaisha Toshiba Computer system capable of connecting expansion unit
US5282172A (en) * 1991-02-22 1994-01-25 Vlsi Technology, Inc. Look-ahead circuit for fast decode of bankselect signals in EMS systems
US5206935A (en) * 1991-03-26 1993-04-27 Sinks Rod G Apparatus and method for fast i/o data transfer in an intelligent cell
US5537609A (en) * 1993-06-22 1996-07-16 Unisys Corporation Mini cache operational module for enhancement to general cache
US5640531A (en) * 1993-06-22 1997-06-17 Unisys Corporation Enhanced computer operational system using auxiliary mini-cache for enhancement to general cache
US6460131B1 (en) * 1993-08-03 2002-10-01 Xilinx Inc. FPGA input output buffer with registered tristate enable
US5651139A (en) * 1993-12-23 1997-07-22 International Business Machines Corporation Protected system partition read/write access on a SCSI controlled DASD
FR2740237B1 (fr) * 1995-10-18 1997-11-14 Schlumberger Ind Sa Composant electronique a memoire synchronisee
US5974498A (en) * 1996-09-24 1999-10-26 Texas Instruments Incorporated Loading page register with page value in branch instruction for as fast access to memory extension as in-page access
JP3052857B2 (ja) * 1996-10-31 2000-06-19 日本電気株式会社 クラスタ間共有メモリアクセス方式
US5987581A (en) * 1997-04-02 1999-11-16 Intel Corporation Configurable address line inverter for remapping memory
US7631160B2 (en) * 2001-04-04 2009-12-08 Advanced Micro Devices, Inc. Method and apparatus for securing portions of memory
GB2378277B (en) 2001-07-31 2003-06-25 Sun Microsystems Inc Multiple address translations
DE10163342A1 (de) * 2001-12-21 2003-07-10 Elektro Beckhoff Gmbh Unterneh Datenübertragungsverfahren, serielles Bussystem und Anschalteinheit für einen passiven Busteilnehmer
JP2003233534A (ja) * 2002-02-07 2003-08-22 Hitachi Ltd メモリシステム
EP1563374A2 (en) * 2002-06-07 2005-08-17 Sun Microsystems, Inc. Using short references to access program elements in a large address space
US7543131B2 (en) * 2005-08-12 2009-06-02 Advanced Micro Devices, Inc. Controlling an I/O MMU
US7480784B2 (en) * 2005-08-12 2009-01-20 Advanced Micro Devices, Inc. Ensuring deadlock free operation for peer to peer traffic in an input/output memory management unit (IOMMU)
US7793067B2 (en) * 2005-08-12 2010-09-07 Globalfoundries Inc. Translation data prefetch in an IOMMU
US7548999B2 (en) * 2006-01-17 2009-06-16 Advanced Micro Devices, Inc. Chained hybrid input/output memory management unit
US8631212B2 (en) 2011-09-25 2014-01-14 Advanced Micro Devices, Inc. Input/output memory management unit with protection mode for preventing memory access by I/O devices
US9606803B2 (en) 2013-07-15 2017-03-28 Texas Instruments Incorporated Highly integrated scalable, flexible DSP megamodule architecture
US9715342B2 (en) 2015-07-03 2017-07-25 Xitore, Inc. Apparatus, system, and method of logical address translation for non-volatile storage memory

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533075A (en) * 1967-10-19 1970-10-06 Ibm Dynamic address translation unit with look-ahead

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160091U (ja) * 1985-03-22 1986-10-03
JPS62134151U (ja) * 1986-05-23 1987-08-24

Also Published As

Publication number Publication date
DE2611598A1 (de) 1976-10-14
BR7601815A (pt) 1976-09-21
JPS6122331B2 (ja) 1986-05-31
FR119649A (ja)
US3970999A (en) 1976-07-20
FR2304962A1 (fr) 1976-10-15

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