JPS57123592A - Accepting device for storage access - Google Patents

Accepting device for storage access

Info

Publication number
JPS57123592A
JPS57123592A JP56008925A JP892581A JPS57123592A JP S57123592 A JPS57123592 A JP S57123592A JP 56008925 A JP56008925 A JP 56008925A JP 892581 A JP892581 A JP 892581A JP S57123592 A JPS57123592 A JP S57123592A
Authority
JP
Japan
Prior art keywords
refreshment
signal
time
processor
acceptance
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
JP56008925A
Other languages
Japanese (ja)
Other versions
JPH0146960B2 (en
Inventor
Koichi Tsukizoe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56008925A priority Critical patent/JPS57123592A/en
Publication of JPS57123592A publication Critical patent/JPS57123592A/en
Publication of JPH0146960B2 publication Critical patent/JPH0146960B2/ja
Granted 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 minimize the influence of refreshment upon another device, such as a processor, by varying the acceptance priority level of a refreshment access request with time and by inhibiting a refreshment access request for a constant time. CONSTITUTION:The delay circuit 15 of a priority circuit 1 delays a processor access acceptance inhibition signal 161 by time TW behind a refreshment access signal 103, so the access request signal 101 of a processor P has priority to the signal 103. Similarly, the signal 101, an access request signal 102 from a processor Q, and the signal 103 are accepted preferentially in this order in the time TW and the signals 103, 101 and 102 are accepted in order after the time TW. During two machine cycles of the time TW after the FF24 of an acceptance detecting circuit 2 is set by timing signals 104, 105 and 201 in every machine cycle, a refreshment acceptance inhibition signal 171 goes down to a 0 to inhibit the acceptance of refreshment. Consequently, the influence of refreshment upon a device such as the processor is minimized.
JP56008925A 1981-01-26 1981-01-26 Accepting device for storage access Granted JPS57123592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56008925A JPS57123592A (en) 1981-01-26 1981-01-26 Accepting device for storage access

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56008925A JPS57123592A (en) 1981-01-26 1981-01-26 Accepting device for storage access

Publications (2)

Publication Number Publication Date
JPS57123592A true JPS57123592A (en) 1982-08-02
JPH0146960B2 JPH0146960B2 (en) 1989-10-11

Family

ID=11706226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56008925A Granted JPS57123592A (en) 1981-01-26 1981-01-26 Accepting device for storage access

Country Status (1)

Country Link
JP (1) JPS57123592A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242394A (en) * 1985-08-20 1987-02-24 Fujitsu Ltd Refresh system for memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242394A (en) * 1985-08-20 1987-02-24 Fujitsu Ltd Refresh system for memory

Also Published As

Publication number Publication date
JPH0146960B2 (en) 1989-10-11

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