Kontron EPIC/PM, User Manual

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24 23BAppendix B: BIOS Operation
24.4.5 Memory Cache Submenu
Feature Option Description
Memory Cache
Disabled
Enabled
Enables or Disables L2 cache.
Cache System BIOS area
Uncached
Write Protected
Controls caching of System BIOS area.
Cache Video BIOS area
Uncached
Write Protected
Controls caching of Video BIOS area.
Cache Base 0-512K
Uncached
Write Through
Write Protected
Write Back
Controls caching of base memory up to 512KB.
Cache Base 512-640K
Uncached
Write Through
Write Protected
Write Back
Controls caching of base memory above between 512 and
640KB.
Cache Extended Memory area
Uncached
Write Through
Write Protected
Write Back
Controls caching of system memory above 1MB.
D000 – D3FF
D400 – D7FF
D800 – DBFF
DC00 – DFFF
Disabled
Write Through
Write Protected
Write Back
Disabled: block is not cached.
Write-Through: Write 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.
Note: In the Option column, bold shows default settings.
Kontron User's Guide
EPIC/PM
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