diff -r 578be2adaf3e -r 307f4279f433 Adaptation/GUID-4AFDA3FF-38D1-5EFE-B18A-E3EAAA52EB75.dita --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Adaptation/GUID-4AFDA3FF-38D1-5EFE-B18A-E3EAAA52EB75.dita Fri Oct 15 14:32:18 2010 +0100 @@ -0,0 +1,29 @@ + + + + + +Flash +Guide Flash memory is a class of memory that can retain its contents +even after the power has been switched off. +
Introduction

Unlike +ROM, the data in Flash memory can be changed by an application.

+
Flash memory features

Features of Flash memory +are:

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  • Writing and erasing of memory has to be undertaken in blocks of memory

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  • Memory contents are retained until erased (regardless of whether the +power has been turned on/off).

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+
Flash memory limitations

The following are limitations +of FLASH memory:

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  • There are a finite number of erase-write cycles (usually 100,000).

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  • NAND Flash cannot be executed in place. Instead the contents have to +be loaded into RAM and then executed.

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