FR3045864B1 - METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR - Google Patents

METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR Download PDF

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Publication number
FR3045864B1
FR3045864B1 FR1562998A FR1562998A FR3045864B1 FR 3045864 B1 FR3045864 B1 FR 3045864B1 FR 1562998 A FR1562998 A FR 1562998A FR 1562998 A FR1562998 A FR 1562998A FR 3045864 B1 FR3045864 B1 FR 3045864B1
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France
Prior art keywords
memory
microcircuit memory
microcircuit
store
writing data
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FR1562998A
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French (fr)
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FR3045864A1 (en
Inventor
Olivier Chamley
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.)
Idemia France SAS
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Oberthur Technologies SA
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Priority to FR1562998A priority Critical patent/FR3045864B1/en
Publication of FR3045864A1 publication Critical patent/FR3045864A1/en
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory

Abstract

L'invention concerne un procédé d'écriture d'une donnée à stocker dans une mémoire (1) de microcircuit, comprenant une étape de : a) lecture ou d'écriture d'une adresse dans une première zone (Z1) de la mémoire (1), cette adresse repérant une position située dans une deuxième zone (Z2) de la mémoire (1). Selon l'invention, ce procédé comprend de plus les étapes suivantes : b) écriture, à partir de ladite position, d'un en-tête (E) comprenant une indication de longueur représentative d'une longueur d'au moins une partie de la donnée à stocker, et c) écriture de cette partie de la donnée à stocker, dans un domaine (D) de la mémoire (1) contigu dudit en-tête (E), la longueur (L) de ce domaine (D) étant égale à la longueur de cette partie de la donnée à stocker. Un procédé de lecture et une mémoire (1) de microcircuit associés sont également décrits.The invention relates to a method of writing data to be stored in a microcircuit memory (1), comprising a step of: a) reading or writing an address in a first area (Z1) of the memory (1), this address identifying a position located in a second zone (Z2) of the memory (1). According to the invention, this method further comprises the following steps: b) writing, from said position, of a header (E) comprising a length indication representative of a length of at least part of the data to be stored, and c) writing of this part of the data to be stored, in a domain (D) of the memory (1) contiguous with said header (E), the length (L) of this domain (D) being equal to the length of this part of the data to be stored. A reading method and an associated microcircuit memory (1) are also described.

FR1562998A 2015-12-21 2015-12-21 METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR Active FR3045864B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1562998A FR3045864B1 (en) 2015-12-21 2015-12-21 METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1562998A FR3045864B1 (en) 2015-12-21 2015-12-21 METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR
FR1562998 2015-12-21

Publications (2)

Publication Number Publication Date
FR3045864A1 FR3045864A1 (en) 2017-06-23
FR3045864B1 true FR3045864B1 (en) 2018-02-02

Family

ID=55948892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1562998A Active FR3045864B1 (en) 2015-12-21 2015-12-21 METHOD FOR WRITING DATA TO STORE IN MICROCIRCUIT MEMORY, READING METHOD, AND MICROCIRCUIT MEMORY THEREFOR

Country Status (1)

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FR (1) FR3045864B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742793A (en) * 1991-12-18 1998-04-21 Intel Corporation Method and apparatus for dynamic memory management by association of free memory blocks using a binary tree organized in an address and size dependent manner
FR2759795B1 (en) * 1997-02-14 1999-05-07 Francois Charles Oberthur Fidu METHOD FOR STORING DATA IN A WRITTEN CARD MEMORY
US7313648B2 (en) * 2004-09-30 2007-12-25 Rockwell Automation Technologies, Inc. Corruption tolerant method and system for deploying and modifying data in flash memory
CH699208B1 (en) * 2008-07-25 2019-03-29 Em Microelectronic Marin Sa Shared memory processor circuit and buffer system.

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Publication number Publication date
FR3045864A1 (en) 2017-06-23

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