GB1520486A - Memory module for data processing system - Google Patents

Memory module for data processing system

Info

Publication number
GB1520486A
GB1520486A GB21378A GB21378A GB1520486A GB 1520486 A GB1520486 A GB 1520486A GB 21378 A GB21378 A GB 21378A GB 21378 A GB21378 A GB 21378A GB 1520486 A GB1520486 A GB 1520486A
Authority
GB
United Kingdom
Prior art keywords
module
signal
memory
memory module
data processing
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
GB21378A
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.)
EMC Corp
Original Assignee
Data General 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 Data General Corp filed Critical Data General Corp
Publication of GB1520486A publication Critical patent/GB1520486A/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
    • G06F13/14—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multi Processors (AREA)

Abstract

1520486 Memory control DATA GENERAL CORP 23 Sept 1975 [25 Sept 1974] 00213/78 Divided out of 1520484 Heading G4A A memory module suitable for use in the overlapped access system disclosed in the parent application includes logic which provides an address select signal in response to an address for that module and a first control signal (MC1) signifying a request for that module to start an operation, generates a busy signal while operating, and provides a start memory signal in response to the address select signal only if the module is not busy and a second control signal (MC2) does not request that the module be prevented from starting operation. Two other control signals (MC3, MG4) in combination define the type of operation to be performed by the memory.
GB21378A 1974-09-25 1975-09-23 Memory module for data processing system Expired GB1520486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50915974A 1974-09-25 1974-09-25

Publications (1)

Publication Number Publication Date
GB1520486A true GB1520486A (en) 1978-08-09

Family

ID=24025532

Family Applications (2)

Application Number Title Priority Date Filing Date
GB21378A Expired GB1520486A (en) 1974-09-25 1975-09-23 Memory module for data processing system
GB3900775A Expired GB1520484A (en) 1974-09-25 1975-09-23 Data processing system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3900775A Expired GB1520484A (en) 1974-09-25 1975-09-23 Data processing system

Country Status (6)

Country Link
JP (1) JPS5151244A (en)
AU (1) AU497876B2 (en)
CA (1) CA1051121A (en)
DE (1) DE2542102C2 (en)
GB (2) GB1520486A (en)
NL (1) NL7511288A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2922540C2 (en) * 1978-06-02 1985-10-24 Hitachi, Ltd., Tokio/Tokyo Data processing system
DE2939412C2 (en) * 1979-09-28 1983-11-17 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for addressing data for read and write access in a data processing system
US4321667A (en) * 1979-10-31 1982-03-23 International Business Machines Corp. Add-on programs with code verification and control
US5111530A (en) * 1988-11-04 1992-05-05 Sony Corporation Digital audio signal generating apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US26087A (en) * 1859-11-15 Improvement in fastening metal hoops on cotton-bales
GB888732A (en) * 1959-12-30
JPS4828583A (en) * 1972-03-24 1973-04-16
US3821709A (en) * 1972-10-05 1974-06-28 Honeywell Inf Systems Memory storage sequencer
US3812473A (en) * 1972-11-24 1974-05-21 Ibm Storage system with conflict-free multiple simultaneous access

Also Published As

Publication number Publication date
AU497876B2 (en) 1979-01-18
GB1520484A (en) 1978-08-09
JPS5731176B2 (en) 1982-07-02
CA1051121A (en) 1979-03-20
DE2542102C2 (en) 1982-10-28
JPS5151244A (en) 1976-05-06
NL7511288A (en) 1976-03-29
DE2542102A1 (en) 1976-04-08
AU8511175A (en) 1977-03-31

Similar Documents

Publication Publication Date Title
GB1394597A (en) Digital memory systems
GB1485472A (en) Sequence control circuit particularly for use in a television signal time base corrector
GB1474280A (en) Field addressing system
GB1318233A (en) Data processing systems
GB1528333A (en) Microprogrammed data processing system
GB1524873A (en) Address extending control unit
GB1374166A (en) Processor interrupt system
GB1243871A (en) Data processing systems
GB1207626A (en) Traffic control apparatus
GB1246129A (en) Stored program electronic computer
KR910005174A (en) Dual area memory controller and its control method
GB1477236A (en) Computer memory read delay
GB1166058A (en) Computer Control
GB1520486A (en) Memory module for data processing system
GB1276590A (en) Improvements in or relating to data processing systems
GB1437985A (en)
GB1472303A (en) Electronic data storage systems
GB1443972A (en) Computer system with programme-controlled programme counters
GB1429850A (en) Data processing systems
US4056809A (en) Fast table lookup apparatus for reading memory
JPS5326632A (en) Common memory control unit
GB1359326A (en) Digital computer with several accumulator registers
JPS6338724B2 (en)
GB1247147A (en) Data processing systems
GB1308418A (en) Error detection circuits

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940923