JPS5544650A - Buffer memory device - Google Patents

Buffer memory device

Info

Publication number
JPS5544650A
JPS5544650A JP11821078A JP11821078A JPS5544650A JP S5544650 A JPS5544650 A JP S5544650A JP 11821078 A JP11821078 A JP 11821078A JP 11821078 A JP11821078 A JP 11821078A JP S5544650 A JPS5544650 A JP S5544650A
Authority
JP
Japan
Prior art keywords
memory
address
time
storage memory
given
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
JP11821078A
Other languages
Japanese (ja)
Inventor
Yasuyuki Kawakami
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 JP11821078A priority Critical patent/JPS5544650A/en
Publication of JPS5544650A publication Critical patent/JPS5544650A/en
Pending legal-status Critical Current

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  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE: To avoid unnecessary time by installing the address storage memory of action time T, the address arithmetic circuit of process time T1 and data storage memory of action time T2 which features the parallel operation to the above-mentioned memory and circuit, along with satisfaction of T<T2<T+T1.
CONSTITUTION: Address arithmetic circuit 205 of process time T1 uses reading address 3 given from address storage memory 203 of action time T as the input and then decides whether the request address given from the CPU exists in data storage memory 204 of action time T2. Memory 204 stores the copy of main memory device MEM, and memory 203 stores the address value of the MEM containing the data. It is enough for the reading data given from memory 204 to be decided at the time point when the address operation is over. In this connection, the relation of T< T2<T+T1 is satisfied. As a result, the memory featuring a lower speed than the address storage memory is used for the buffer memory to avoid the unnecessary time.
COPYRIGHT: (C)1980,JPO&Japio
JP11821078A 1978-09-25 1978-09-25 Buffer memory device Pending JPS5544650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11821078A JPS5544650A (en) 1978-09-25 1978-09-25 Buffer memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11821078A JPS5544650A (en) 1978-09-25 1978-09-25 Buffer memory device

Publications (1)

Publication Number Publication Date
JPS5544650A true JPS5544650A (en) 1980-03-29

Family

ID=14730924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11821078A Pending JPS5544650A (en) 1978-09-25 1978-09-25 Buffer memory device

Country Status (1)

Country Link
JP (1) JPS5544650A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03221579A (en) * 1990-01-26 1991-09-30 Arakawa Chem Ind Co Ltd Heavy metal-trapping agent

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222833A (en) * 1975-08-15 1977-02-21 Hitachi Ltd Signal receiving method in the memory unit
JPS5326543A (en) * 1976-08-24 1978-03-11 Nec Corp Logical operation equipment
JPS5383542A (en) * 1976-12-29 1978-07-24 Mitsubishi Electric Corp Memory unit control system for arithmetic processor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222833A (en) * 1975-08-15 1977-02-21 Hitachi Ltd Signal receiving method in the memory unit
JPS5326543A (en) * 1976-08-24 1978-03-11 Nec Corp Logical operation equipment
JPS5383542A (en) * 1976-12-29 1978-07-24 Mitsubishi Electric Corp Memory unit control system for arithmetic processor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03221579A (en) * 1990-01-26 1991-09-30 Arakawa Chem Ind Co Ltd Heavy metal-trapping agent

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