公开(公告)号：US10204057B2

公开(公告)日：2019-02-12

申请号：US15294413

申请日：2016-10-14

Applicant: Atmel Corporation

Inventor： Frode Milch Pedersen ,  Sylvain Garnier ,  Ian Fullerton ,  Xavier Leprevost

IPC: G06F12/10 ,  G06F12/1009 ,  G06F12/02 ,  G06F3/06

Abstract: In an embodiment, a method comprises: obtaining a virtual bus address; translating the virtual bus address to a physical address of a portion of NVM storing first data; determining that the first portion of NVM has been allocated previously; reading the first data from the first portion of NVM; determining whether writing second data to the first portion of the NVM would change one or more bits in the first data; responsive to the determining that a write operation only changes data bits in the first data from 1 to 0, writing the second data over the first data stored in the first portion of NVM; and responsive to the determining that one or more bits in the first data would be flipped from 0 to 1, reallocating the first portion of NVM to a second portion of NVM, copying the first data from the first portion of NVM to the second portion of NVM with the first data modified by the second data.

公开(公告)号：US20180046582A1

公开(公告)日：2018-02-15

申请号：US15294413

申请日：2016-10-14

Applicant: Atmel Corporation

Inventor： Frode Milch Pedersen ,  Sylvain Garnier ,  Ian Fullerton ,  Xavier Leprevost

IPC: G06F12/1009 ,  G06F3/06 ,  G06F12/02

CPC classification number: G06F12/1009 ,  G06F3/0611 ,  G06F3/0659 ,  G06F3/0679 ,  G06F12/0246 ,  G06F2212/2022 ,  G06F2212/7201

Abstract: In an embodiment, a method comprises: obtaining a virtual bus address; translating the virtual bus address to a physical address of a portion of NVM storing first data; determining that the first portion of NVM has been allocated previously; reading the first data from the first portion of NVM; determining whether writing second data to the first portion of the NVM would change one or more bits in the first data; responsive to the determining that a write operation only changes data bits in the first data from 1 to 0, writing the second data over the first data stored in the first portion of NVM; and responsive to the determining that one or more bits in the first data would be flipped from 0 to 1, reallocating the first portion of NVM to a second portion of NVM, copying the first data from the first portion of NVM to the second portion of NVM with the first data modified by the second data.