JPS5611686A - Storage unit - Google Patents

Storage unit

Info

Publication number
JPS5611686A
JPS5611686A JP8729879A JP8729879A JPS5611686A JP S5611686 A JPS5611686 A JP S5611686A JP 8729879 A JP8729879 A JP 8729879A JP 8729879 A JP8729879 A JP 8729879A JP S5611686 A JPS5611686 A JP S5611686A
Authority
JP
Japan
Prior art keywords
reproduction
address
access
memories
accessed
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.)
Pending
Application number
JP8729879A
Other languages
Japanese (ja)
Inventor
Seigo Oida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8729879A priority Critical patent/JPS5611686A/en
Publication of JPS5611686A publication Critical patent/JPS5611686A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/406—Management or control of the refreshing or charge-regeneration cycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)

Abstract

PURPOSE:To prevent the lowering in the usage efficiency of the unit, by decreasing the frequency of reproduction request, through the simultaneous reproducing operation of other entire memory modules not to be accessed when the content of the access address and the reproducing address register are in agreement, even if no reproduction request is present. CONSTITUTION:The reproducing address from the reproduction request generating curcuit 10 generating the reproduction period signal after a given period is set to the reproducing address register 20. When this address is in agreement with the access address, the output of the comparator 30 is at high level, the timing signal is simultaneously fed to the memories M1, M2... via the OR circuit 150, the memories to be accessed are accessed, and the reproduction of all other memories is simultaneously made. At the same time, the output of the access recording register 40 is at high level via the comparator 30, the reproduction period signal is interrupted at the AND circuit 90, the input to the competition circuit 60 where the access signal is fed, the frequency of reproduction request is made less, and the lowering in the usage efficiency of the memory unit can be prevented.
JP8729879A 1979-07-10 1979-07-10 Storage unit Pending JPS5611686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8729879A JPS5611686A (en) 1979-07-10 1979-07-10 Storage unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8729879A JPS5611686A (en) 1979-07-10 1979-07-10 Storage unit

Publications (1)

Publication Number Publication Date
JPS5611686A true JPS5611686A (en) 1981-02-05

Family

ID=13910908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8729879A Pending JPS5611686A (en) 1979-07-10 1979-07-10 Storage unit

Country Status (1)

Country Link
JP (1) JPS5611686A (en)

Similar Documents

Publication Publication Date Title
JPS6432489A (en) Memory device
JPS55105897A (en) Memory device
JPS5611686A (en) Storage unit
JPS55125516A (en) Memory control system
JPS5644919A (en) Control board
JPS56137580A (en) Semiconductor storage device
JPS57164481A (en) Storage device
JPS55113200A (en) Checking method for ic memory
JPS5564689A (en) Abnormality detecting method for memory unit
JPS57106220A (en) Time ratio signal generating device
JPS55157054A (en) Disc cash unit
JPS57127981A (en) Digital signal storage device
JPS5733472A (en) Memory access control system
JPS578980A (en) Memory device
JPS5654561A (en) Memory interleaving control system
JPS57195374A (en) Sequential access storage device
JPS5447444A (en) Memory unit
JPS6459692A (en) Dram control device with page mode function
JPS553038A (en) Microprogram control unit
JPS563485A (en) Buffer memory device
JPS5694595A (en) Controller for memory patrol
JPS5532159A (en) Memory system
JPS56111184A (en) Control system of memory system
JPS55112661A (en) Memory control unit
JPS55164956A (en) Access system

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20090622

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100622

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100622

Year of fee payment: 9

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110622

Year of fee payment: 10

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120622

Year of fee payment: 11

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 11

Free format text: PAYMENT UNTIL: 20120622

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 12

Free format text: PAYMENT UNTIL: 20130622

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140622

Year of fee payment: 13

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250