JPS54109333A - Main memory unit - Google Patents

Main memory unit

Info

Publication number
JPS54109333A
JPS54109333A JP1698278A JP1698278A JPS54109333A JP S54109333 A JPS54109333 A JP S54109333A JP 1698278 A JP1698278 A JP 1698278A JP 1698278 A JP1698278 A JP 1698278A JP S54109333 A JPS54109333 A JP S54109333A
Authority
JP
Japan
Prior art keywords
write
data
circuit
memory
time
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
JP1698278A
Other languages
Japanese (ja)
Other versions
JPS6127781B2 (en
Inventor
Masaru Katagiri
Kazuhiro Akamatsu
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Priority to JP53016982A priority Critical patent/JPS6127781B2/ja
Publication of JPS54109333A publication Critical patent/JPS54109333A/en
Publication of JPS6127781B2 publication Critical patent/JPS6127781B2/ja
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/24Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells

Abstract

PURPOSE:To make it possible to use a write control part for each band in common by preventing a write to other memory modules for a certain period after a certain time passes since a start of a partial write to one memory module. CONSTITUTION:When a write or read request is given to the main memory unit within one cycle, partial write data are stored in register 2 of the bank. Then, the bus is released which consists of interface control part 1, selector circuit 3, error- correction code generating circuit 4, and memory part 6. After time (t1) passes, a bus to a band different by time (t2) when rewrite data obtained through matching with error detecting correction circuit 5 by selector circuit 3 are written in memory part 6 becomes impossible. Through the control not to send out a request for inputting all write data to selector circuit 3 after time (t1), therefore, marks of all write data and rewrite data by selector circuit 3 are eliminated, so that the data system control circuit of each bank can be used in common in case of (n)-way interleave.
JP53016982A 1978-02-15 1978-02-15 Expired JPS6127781B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53016982A JPS6127781B2 (en) 1978-02-15 1978-02-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53016982A JPS6127781B2 (en) 1978-02-15 1978-02-15

Publications (2)

Publication Number Publication Date
JPS54109333A true JPS54109333A (en) 1979-08-27
JPS6127781B2 JPS6127781B2 (en) 1986-06-27

Family

ID=11931248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53016982A Expired JPS6127781B2 (en) 1978-02-15 1978-02-15

Country Status (1)

Country Link
JP (1) JPS6127781B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01223541A (en) * 1988-03-03 1989-09-06 Fujitsu Ltd Interleave memory
JP2001325147A (en) * 2000-05-17 2001-11-22 Hitachi Ltd Partial storage processing method, memory system and large scale integrated circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01223541A (en) * 1988-03-03 1989-09-06 Fujitsu Ltd Interleave memory
JP2001325147A (en) * 2000-05-17 2001-11-22 Hitachi Ltd Partial storage processing method, memory system and large scale integrated circuit

Also Published As

Publication number Publication date
JPS6127781B2 (en) 1986-06-27

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