Kontron COMe-bCD2 Manuel d'utilisateur télécharger pdf (Page 54)

11 BIOS Setup

Kontron User's Guide ETXexpress® CD

54

11.3.2 Cache Memory Submenu

Feature

Option

Description

Memory Cache

Disabled

Enabled

Sets the state of the memory cache

Cache System BIOS area

Uncached

Write Protect

Controls caching of system BIOS area

Cache Video BIOS area

Uncached

Write Protect

Controls caching of video BIOS area

Cache Base 0-512k

Uncached

Write Through

Write Protect

Write Back

Controls caching of 512k base memory

Cache Base 512k-640k

Uncached

Write Through

Write Protect

Write Back

Controls caching of 512k 640k base memory

Cache Extended Memory Area

Uncached

Write Through

Write Protect

Write Back

Controls caching of system memory above

one megabyte

Cache A000-AFFF

Disabled

USWC caching

Write Through

Write Protect

Write Back

Disabled – This block is not cached.

USWC – Uncached Speculative Write

Combined.

Write Through – Writes are cached and sent

to main memory at once.

Write Protect – Writes are ignored.

Write Back – Writes are cached but not sent

to main memory until necessary

Cache B000-BFFF

Disabled

USWC caching

Write Through

Write Protect

Write Back

Cache C800-CBFF

Disabled

Write Through

Write Protect

Write Back

Disabled – This block is not cached.

Write Through – Writes are cached and sent

to main memory at once.

Write Protect – Writes are ignored.

Write Back – Writes are cached but not sent

to main memory until necessary

Cache CC00-CFFF

Disabled

Write Through

Write Protect

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