JPS6417139A - Memory device - Google Patents

Memory device

Info

Publication number
JPS6417139A
JPS6417139A JP62174149A JP17414987A JPS6417139A JP S6417139 A JPS6417139 A JP S6417139A JP 62174149 A JP62174149 A JP 62174149A JP 17414987 A JP17414987 A JP 17414987A JP S6417139 A JPS6417139 A JP S6417139A
Authority
JP
Japan
Prior art keywords
data
memory
written
held
started
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
JP62174149A
Other languages
Japanese (ja)
Inventor
Kazunori Ishihara
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 JP62174149A priority Critical patent/JPS6417139A/en
Publication of JPS6417139A publication Critical patent/JPS6417139A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To check whether a memory is working normally or not by performing the comparison between the data which is held when it is written into the memory and the data held when it is read out of the memory. CONSTITUTION:When a data writing action is started to a memory array part 1, the write data is written into the part 1 and also given to a data-in latch part 10. Thus the part 10 holds the write data corresponding to a memory cycle in which the data is written in the part 1. When a data reading action is started out of the part 1, a comparing part 3a compares the data read out of the part 1 and the data held by the part 10 and delivers a coincidence signal when the coincidence is obtained between both data.
JP62174149A 1987-07-13 1987-07-13 Memory device Pending JPS6417139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62174149A JPS6417139A (en) 1987-07-13 1987-07-13 Memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62174149A JPS6417139A (en) 1987-07-13 1987-07-13 Memory device

Publications (1)

Publication Number Publication Date
JPS6417139A true JPS6417139A (en) 1989-01-20

Family

ID=15973532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62174149A Pending JPS6417139A (en) 1987-07-13 1987-07-13 Memory device

Country Status (1)

Country Link
JP (1) JPS6417139A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143364A (en) * 1991-01-09 1992-09-01 Am International, Inc. Suction control system for printing or duplicating machines
US5181710A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Top sheet feeding apparatus
US5184812A (en) * 1990-05-09 1993-02-09 Sharp Kabushiki Kaisha Sheet feeding apparatus capable of feeding sheets of plural sizes
JP2022116334A (en) * 2017-05-31 2022-08-09 キヤノン株式会社 Mount device, imaging apparatus, adapter device, and accessory

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181710A (en) * 1990-03-20 1993-01-26 Sharp Kabushiki Kaisha Top sheet feeding apparatus
US5184812A (en) * 1990-05-09 1993-02-09 Sharp Kabushiki Kaisha Sheet feeding apparatus capable of feeding sheets of plural sizes
US5143364A (en) * 1991-01-09 1992-09-01 Am International, Inc. Suction control system for printing or duplicating machines
JP2022116334A (en) * 2017-05-31 2022-08-09 キヤノン株式会社 Mount device, imaging apparatus, adapter device, and accessory

Similar Documents

Publication Publication Date Title
NO954028D0 (en) Method of loading into a protected storage area of an information processing device, as well as device for this purpose
EP0149049A3 (en) Data memory with simultaneous write and read
DE69425403D1 (en) Collection of information about a recording medium in a cassette.
EP0480421A3 (en) Testable ram architecture in a microprocessor having embedded cache memory
EP0288832A3 (en) Data writing system for eeprom
EP0401521A3 (en) Semiconductor memory device
EP0398189A3 (en) Noncacheable address random access memory
JPS6417139A (en) Memory device
EP0404013A3 (en) Semiconductor memory device with an improved write control circuit
JPS52102013A (en) Memory unit
ES2056926T3 (en) CACHE MEMORY SYSTEM.
EP0263312A3 (en) Semiconductor memory device with a self-testing function
JPS5613585A (en) Semiconductor memory circuit
JPS5712498A (en) Integrated circuit device for memory
JPS5712496A (en) Integrated circuit device for memory
JPS53106110A (en) Magnetic memory controller
JPS6432359A (en) Memory device
EP0278391A3 (en) Memory system
JPS5446436A (en) Memory unit
JPS6459486A (en) Card module
JPS57763A (en) External memory device
JPS5712497A (en) Integrated circuit device for memory
JPS5387636A (en) Memory write unit
JPS6428721A (en) Semiconductor storage device
JPS56166564A (en) Access system of main storage device